sa roofing january - february 2015 | issue: 66

JANUARY - FEBRUARY 2015 ISSUE: 66WWW.TRADEMAX.CO.ZA SA R36 EACH INCL. / R360 PER ANNUM INCL.

JANUARY - FEBRUARY 2015 ISSUE: 66

EDITOR’S COMMENTS ...................................................................................................... 2COVER STORY ............................................................................................................... 6-12FASTENING SYSTEMS ...................................................................................................... 14NEWS .............................................................................................................................. 16-17FASTENING SYSTEMS ................................................................................................ 18-21TIMBER TRUSSES .......................................................................................................... 22-23TIMBER TREATMENT ................................................................................................. 24-26ADVERTORIAL.............................................................................................................. 30-34POLYCARBONATE SHEETING ............................................................................... 36-37

WATERPROOFING & SEALANTS ................................................................................. 38LSFB.................................................................................................................................. 40-42CEILINGS ....................................................................................................................... 44-45THATCH ............................................................................................................................... 47LSFB.................................................................................................................................. 48-49EVENTS ................................................................................................................................. 52PAINTS & COATINGS ...................................................................................................... 54

18

30 38

6

Trademax Publications

SA Roofing

Tel: 0861 SA ROOF Tel: 0861 727 663 Cell: 082 266 6976Fax: 0866 991 346www.trademax.co.za

Postnet Suite 241

Private Bag X103

N1 City

7463 PUBLISHER: Billy Perrin

[email protected]

0861 727 663

EDITOR: Jennifer Rees

[email protected]

0861 727 663

ADVERTISING: Jacqui Marsh

[email protected]

0861 727 663

LAYOUT & DESIGN: Craig Patterson

[email protected]

SUBSCRIPTIONS: Belinda Thwesha

[email protected]

021 595 3422

DISCLAIMERThe views expressed herein are not necessarily those of Trademax Publications. Although we have done our best to ensure the accuracy of our content, neither Trademax Publications nor SA Roofing magazine will be held liable for any views expressed or information disseminated, in

editorial content or advertisements, in this issue.

JAN - FEB 2015

2015 seems set to be a challenging year for all industries and households with regular power cuts already being implemented and set to continue. There is also

uncertainty around whether or not we will see a repeat of the 2014 postal strike in 2015, and since an essential part of what we do is to deliver your hard copy of SA Roofing to you, we have sourced an alternative delivery option for distribution going forward.

We are making every effort to convert our database to include street as well as postal addresses and we encourage you, our readers, to communicate your street address to us via phone or email so that we can ensure uninterrupted delivery of your favourite roofing magazine.

A noticeable thread running through this issue is that the unscrupulous material and/or service provider is unfortunately alive and well in the industry. And while tarnishing the reputation of trustworthy, ethical players in the industry, they oftentimes fly under the radar and act without consequence.

It is heartening, however, to see how many associations are doubling their efforts to not only regulate their respective industries, but to educate and inform the industry as well as the consumer in order to combat these dishonest operators.

On a positive note, we’re proud to be a media partner to the HWZ Wood Conference taking place on the 17th of February, and have a special focus on the role of timber in roofing in this issue. The Wood Conference is now in its fifth year and is host to a fantastic speaker line up and a growing number of delegates each year. We look forward to reporting back on this prestigious event.

Welcome to the very first issue of SA Roofing for 2015! Wishing you a prosperous and healthy year ahead!

Enjoy the read. Jen

EDIT

OR

’S C

OM

MEN

TS

A calm sea never made a skilled sailor2015 is already in full swing, and while a number of challenges faced last year seem to be coming home to roost once more, it is those of us who readily adapt who develop resilience to these

unfortunate external factors.

2

Meet the requirements of SANS 10400 XA by specifying Eco-Insulation as thermal and acoustic insulation of choice above the

ceiling, or pumped in under a flat roof. SABS Approved.

• 100% coverage of area - no cold spots• Professionally installed - on time, on budget• Exceptional performance - R-values

• SABS Approved • Fire Rated - B/B1/2 - SANS 10177- P5 • Sustainable - recycled and green

Company of the Year Excellence Award - S.A. Energy Efficiency Association

www.eco-insulation.co.za tel - 021 555 3766

Energy Efficient. On Time & On BudgetEnsure your housing project is energy efficient - with Eco-Insulation

EN

ER

GY

MC

PPC Certificate

JAN - FEB 2015

GRSGLOBAL ROOFING SOLUTIONSGRS Klip-Tite

KLIP-TITE - ONLY FROM GRS

Developed through continuous in-house testing of existing products, where it was realised that failure is normally caused by the sheet unclipping from the fi xing clip, during high wind uplift pressure.• Transverse stiffeners introduced in the trough of the sheet to achieve a balanced system design and even higher wind uplift resistance.• The defl ection of the pan is reduced, increasing the wind uplift resistance of the sheet.• Transverse stiffeners are a fi rst in the South African sheet ing market.• Offers improved wind uplift resistance results compared to other traditional clipping systems and more diffi cult to remove• The ultimate wind uplift resistance of Klip-Tite exceeded expectations

Talk to us, THE SMART ROOF PEOPLE on 011 898 2900 or visit www.globalroofs.co.za or email [email protected]

YOU CAN HUFF AND PUFF BUT YOU WON’T BLOWOUR ROOFS DOWN!

0224 GRS Wolfie DPS (297x420).indd 1 2015/01/15 1:30 PM

CO

VE

R S

TO

RY

LCP Roofing (Pty) Ltd. Leaders in Roof Truss Technology

CO

VE

R ST

OR

Y

CO

VE

R S

TO

RY

Entering its sixth year of operations, the management team of LCP Roofing has had a chance to reflect on its past successes, but more importantly to focus on and

plan for the future.

Today, the Gauteng-based truss fabricator has become a force to be reckoned with and with the SANS 1900 (SATAS) accreditation to its name, industry leading equipment and a dedicated staff complement, the company is embracing 2015 and the years to follow with great enthusiasm.

PAST SUCCESSES"Our vision, to become the preferred roofing company in Gauteng and beyond has now become a reality," says Andri Pretorius, Managing and Operational director of the Pretoria East-based fabricator.

"LCP Roofing specializes in residential and commercial timber roof structures with either concrete tile or metal sheet roof coverings. We have completed some pretty awesome roof projects, and with structures becoming increasingly complicated, we relish the opportunity to rise to the challenge,” says Pretorius, adding, “No project is too large for us and we have completed a significant number of schools and prominent commercial buildings over the past five years. The last 12 months saw us fabricate and erect close on 300 000m2."

“Our residential clients are our lifeblood and we are exceptionally grateful for the loyal support we receive from them. Our client representatives ensure that the estimating department is fed with a constant stream of drawings for quotations,” continues Pretorius.

"We have seen a subtle shift in the market and where we were quoting close on 200 jobs a month in 2013, it is now not the

exception when we exceed 250 quotes on average every month," concur Rohan Vermeulen and William Long, roof truss estimators at the company.

When asked about LCP Roofing's obvious expertise in the design, supply and erection of metal sheeting to its erected timber roof structures, Henk van Wyngaardt, metal sheeting design specialist, explains, "We invested in an advanced roof sheeting estimating software program supplied by Applicad Australia. I was fortunate to be sent 'down under' to complete my training and according to my knowledge, very few South African sheeting designers and erectors use this advanced calculation and design software, which really adds to LCP Roofing’s prominent position at the forefront of this sphere."

FACTORYThe production facility is, by international standards, very well equipped and efficient, and at peak times fabricates up to 1 500m2 daily. This output ensures that LCP Roofing will always be able to produce the volumes that large projects demand.

The two Spida Machinery 2000 CNC saws, imported from New Zealand ensure that all timber is very accurately cut and the human error factor in length and angle measurements are completely eliminated.

"One of best decisions we ever made was to look at a better framing and press process," remarks Pretorius. "We spent months researching the subject and we even went as far as visiting suppliers and fabricators in the United Kingdom in 2011. After that, the decision was not difficult and the first of our two AV Birch presses arrived from the UK in October that same year. In keeping with our philosophy of creating a modern, quality-driven and high production truss fabrication business, our second Birch Press was installed in January 2013."

8 JAN - FEB 2015

EDUCATION AND TRAININGLCP Roofing, through financial assistance and mentorship, has developed a number of totally independent carpenter, sheeting and tiling teams. Today these sole proprietor business units have created employment for a number of individuals who have grown themselves and contributed to their own micro economies.

LCP Roofing continues with the ethos that empowerment comes through education and the company has created a financial assistance scheme for study loans at bona-fide educational institutions. This service is available to all staff members.

Training is a priority and staff have been trained in International Truss Systems (ITS) software, operator certificates, Applicad design software, as well as Joomla and Wordpress platforms for its website design and maintenance.

With a national average of less than one per fabricator, LCP Roofing can boast ten graduates from the Institute for Timber Construction (ITC-SA) designer courses, an achievement of which LCP Roofing and its graduates are exceptionally proud.

Regular in-house factory training is also done to ensure compliance with the various standards.

CERTIFICATION & GRADINGThe staff at LCP Roofing proudly display, not only the company and system logos, but also the ITC-SA Fabricator and Erector logos, as well as the South African Technical Auditing Services’ (SATAS) logo on their clothing, stationery and vehicles.

"Being associated with a company that has not only contributed to my personal advancement through training, but has given me support at all levels in the value chain, ensures that I can discuss projects with my clients with total confidence," says Zelda Pretorius, one of LCP Roofing’s sales representatives. "The SATAS (SANS 1900) quality mark differentiates us from the rest of our competitors."

RECOGNITIONThe ITC-SA audits erectors and licensed fabricators for the awarding of the certificates of competence to the desired national standards, and LCP Roofing proudly displays its Fabricator and Erector certificates in its office, both ‘A’ graded.

SATAS is accredited by South African National Accreditation Systems (SANAS) to certify manufacturers producing products within the scope of accreditation, to the requirements of ISO Guide 65. The SATAS name and certification mark is now well established in various industries and its logo has since become highly respected as a mark of distinguished quality.

“Being passionate about your business and industry is one thing, being recognized is another," says Pretorius. "I can proudly say that both Lyndsay Cotton, LCP Roofing’s General Manager, and I are serving board members of the ITC-SA and Lyndsay is currently serving his second term as Chairman of the board at the Institute."

CO

VE

R ST

OR

Y

J AN - FEB 2015 9

CO

VE

R S

TO

RY

LOOKING FORWARD

SYSTEMS & SOFTWARE SUPPORTSays Lyndsay Cotton, "The growth of our business necessitated a complete rethink of our internal processes and procedures. We are a dynamic team and our continual focus is toward small improvements in all our activities. This philosophy enables us to achieve our larger, long-term objectives.”

He adds, “Whilst the core of our business revolves around the design, supply and erection of both timber structures and coverings, we have had to ensure that we can fulfill our clients’ complete requirements. We are, after all, specialists in what we do, and to make total service delivery a reality, we needed to provide our clients with an all-encompassing roofing service literally ‘under one roof’.

“With the proliferation of smart phones and technology surrounding applications development we have embraced the modern age. All quote and re-quote requests are electronically submitted by our reps, using either their smart phones, or tablets utilizing templates and processes that were designed in-house.

“A unique submission ID is created and this then creates an electronic paper trail throughout from quote acceptance all the way through to the final inspection.

“Additionally, all deliveries, site measurements, site inspections and quality reports are electronically captured and submitted to the job file system. The reports include date and time stamps, GPS co-ordinates, site notes and photos of the site conditions at every visit.

“LCP Roofing’s accounting systems have been upgraded and a bespoke business process management and workflow automation process was custom designed by FlowCentric Technologies for the company’s unique requirements. The job file management process has been implemented and the job scheduler, where all scheduling populates to an online calendar, is being tested. The entire project can be tracked by all employees and specific time-based reports and notifications are sent to our clients at all the project milestones.

"The uniqueness of the entire process has placed us in a league of our own," enthuses a passionate Cotton.

10 JAN - FEB 2015

Leaders in Roof Truss TechnologyFabricators

SheetersErectors

Tilers

CO

VE

R S

TO

RY

CHALLENGESAsked about the challenges facing the business, Cotton continues, "We are excited about the year ahead. The First National Bank property barometer for 2015-2016 was released on the 12th January 2015 and it spells good news for the building industry. After showing little growth in recent years, new stock to the residential market is forecast to grow by 21.6% from 4 600 000m2 to over 5 600 000m2. This is exceptionally good news for fabricators in general and the question that now remains is if our suppliers can keep up with the demand.

“We are already experiencing shortages of certain timber grades and roof coverings, be they concrete tiles or roof sheeting and this issue remains problematic.

“The upturn in our industry is almost certainly going to increase the number of competitors. Our philosophy is that we love competitors, because they keep on pushing us to reach new heights and in the process, we plan new strategies and gain an even better understanding of the market.

“By positioning ourselves to serve a niche in the market, with our specialist ability in intricate designs, project management, the use of industry-leading design software and business process automation, we are positioning ourselves ahead of our competitors.”

MARKETING CAMPAIGNSLCP Roofing’s business to business print media and outdoor print media campaigns are producing good results and together with very visible branding on all company vehicles, the company is creating significant awareness in the market, which is building a brand that is synonymous with a quality product.

CONCERNSOn the downside, the company is experiencing a number of challenges where competing companies are securing work at any cost. This includes blatant disregard of industry rules and standards.

The only loser is the consumer and it is predicted that continuous failures will be reported, often only after the

fabricator has closed his doors and re-opened in another name. The entire fabrication environment is tarnished through this type of malpractice, which affects the many professional and long-establish fabricators in this industry.

This problem is even larger and of greater concern in the erection side of business. LCP Roofing estimates that fewer than 8% of erectors are registered and thus deemed competent by the ITC-SA. It is unthinkable that a consumer would allow a slab design and inspections to be done without a registered engineer and inspector being appointed, and yet, will allow an untrained and unregistered erector to erect such an important structural system, often butchering the original design.

The consumer then has no recourse whatsoever as the ITC-SA cannot intervene unless the erector is registered with the ITC-SA and can prove that each and every truss and connection detail has been designed, erected within his category of competence and inspected by an engineer who is generally recognized as having the necessary experience and training to undertake rational designs in the field of roofs and roofing.

LCP Roofing is, however, confident that following its professional recognition by SAQA, the ITC-SA is making inroads into consumer awareness and raising standards in the industry as a whole.

In closing, Cotton says that LCP Roofing will always try to anticipate the market and client needs into the future. “We additionally offer a preliminary design and estimating function to architects and quantity surveyors for budgeting of future projects. We invite our clients to visit our offices where we can physically showcase our product offerings, and where they can discuss their projects in depth with our designers. There is also always time for a cup of freshly ground coffee at our offices - life is too short for anything less.”

FOR MORE INFORMATION, CONTACT:

(t) 0861 527 7663 | LCP ROOF(e) [email protected] (w) www.lcproofing.co.za

12 JAN - FEB 2015

ZAP FASTENING SYSTEMSOFFERS YOU:

ZAP FASTENING SYSTEMS ARE SUITABLE FOR ALL ENVIRONMENTS

Z2 ELECTROPLATED SCREWS Z3 DUPLEX COATED SCREWS

Z4 DUPLEX COATED SCREWS Z5 BI-METAL STAINLESS STEEL SCREWS

ZAP FASTENING SYSTEMS HAVE A VARIETY OF HEAD STYLES AND DRILL POINTS FOR ALL APPLICATIONS

ZAP FASTENING SYSTEMS RANGE FROM 13MM TO 180MM IN LENGTH

The widest range Guaranteed quality and performanceBest value for money Nationwide distribution

Made to SANS1273 Class 2 specifications for use in mild rural and urban areas. Compatible with Z275 sheeting

Made to SANS1273 Class 3 specifications. For use in moderate marine and industrial environments. Compatible with Zinc Aluminium coated sheeting

Made to SANS1273 Class 4 specifications. For use in severe marine and industrial environments. Compatible with painted Zinc and painted Zinc Aluminium coated sheeting

Made for ISO9223 Class 5 environments. For use in very severe marine and industrial environments. Compatible with stainless steel and aluminium sheeting

Zap fastening systems are distributed nationwide by

KARE INDUSTRIAL SUPPLIERS

Cape Town(021) 592 4577

Port Elizabeth(041) 451 1447

Pretoria(012) 332 4073

Durban(031) 705 5610

Johannesburg(011) 334 0922

FAST

EN

ING

SY

STE

MS

What makes the product so unique is the fact that Simpson Strong-Tie carried out extensive research and testing before launching the product, for

various applications, with engineered design values for the designer. It has all the features to excite everybody working in the timber industry – from the architect to the contractor.

The structural wood screw was designed to provide an easy-to-install, high-strength connection alternative to bolting and traditional nailing.

The screw is specially designed for structural timber-to-timber applications and is also ideal for a wide variety of projects where a high-strength attachment is required.

Wolf Professional Services asked Professor Walter Burdzik of the University of Pretoria to carry out additional tests on the screw for purlin-to-rafter connections, with gusty wind forces on the eaves, gables and apexes of sheeted roof structures. His findings were that the single flat-head screw is as strong as a double nailed hurricane clip.

For any further information, contact Wolf Professional Services:

(t) 058 471 0844(c) 082 304 7006(e) [email protected](w) www.wolfpro.co.za

The new timber fastener for the future!

The search for a reliable fastener to do remedial works started four years ago when wood screws were tested at Braytons Timbers. The T17

woodscrew solved the problem to a certain degree. However, the need for the perfect fastener made us search even further until the discovery of the

Strong-Drive® Structural Wood Screw.

Testing at Pretoria University

Testing at Braytons Timbers

14 JAN - FEB 2015

DISTRIBUTORS FOR PRODUCTS OF SIMPSON STRONG-TIE

Timber Connectors

Quick Drive Tools

Concrete Anchors

Cold Form Steel Connectors

Powder Actuated Tools

TRAINING

The Timber Roof Structure Workshop (2CPD Points) (accredited by SAICE)

Erect Roof Trusses (SAQA US—ID14891)

ENGINEERING

Structural Designs—timber, steel and concrete

Structural Inspection Services including Roof Inspections.

ITC Category A Roof Inspectors:

Roy Meek—082 824 2520

Jurg Olivier – 084 919 1670

Leon Havenga—083 381 4183

Charl Wood—082 560 2963

Jacques Lewis—082 782 4731

Contact no: 083 669 9282/082 304 7006 email: [email protected] website: www.wolfpro.co.za [email protected]

GWK, Douglas G W Scheepers, Fouriesburg

Strength in unityThe Institute of Timber Frame Builders (ITFB) is now formally integrated

into the workings of the Institute for Timber Construction South Africa (ITC-SA), representing the start of a joint force and mutual

empowerment for the development of an entity that will serve the built environment with a united front.

NE

WS

16 JAN - FEB 2015

This new entity, empowered by the combined intellectual power and resources of the previous two institutes, bodes well for the future of timber engineered products and will allow for a more focused approach when dealing with the statutory regulators at large.

The ITC-SA and the ITFB have agreed that up to the conclusion of the ITC-SA’s financial year (end of February 2015), it will be ‘business as usual’ for the new integrated entity. The current Executive Committee of the ITFB has been appointed to the ITC-SA board, and by implication, Werner Slabbert, Leon Bekker and Peter Bisset will be taking care of the interests of the integrated membership at board level. Jenni de Waal will still run the office in Cape Town for timber frame builders and all timber frame builder business will be conducted through the Cape Town office with Fred Wagenaar as the CEO of the ITC-SA in Johannesburg.

The current ITFB website shall also, in due course, be integrated into the ITC-SA website and in future all public or member queries will be dealt with on only one single website. The ITFB logo will be changed to align with the registered ITC-SA logo and corporate branding, which will be revisited in future in order to create a more inclusive image of the new ITC-SA. This integration is the start of a new era within the ITC-SA and allows the ITC-SA to be the custodian and representative body for all structural elements in the timber built environment.

Mostly, it is envisaged that it will be ‘business as usual’ for all new members of the ITC-SA, but with the added benefit that ITFB members will now belong to a South African Qualifications Authority-accredited Professional Body (SAQA), reaping the benefits of the work that has been done by the ITC-SA in all areas of the built environment, more specifically with the National Home Builders Registration Council (NHBRC) and the National Regulator of Compulsory Specifications (NRCS).

For timber frame builders comes the added advantage that they will receive professional status and recognition as Certified Timber Frame Builders. To receive and retain this status, Certified Timber Frame Builders will undergo an annual audit inspection by the ITC-SA. The NHBRC is currently rewriting the Home Building Manuals, and specific provision is made to recognize members belonging to a professional body, which will add a new level of regulation and management of risk in relation to new entrants into the housing market.

All current ITFB timber frame builders will receive the ITC-SA ‘SAQA Certificate of Accreditation 2014-2015’ and the timber frame builders that were approved by the ITFB Executive Board will also receive their ‘Certificates of Competence 2014-2015.’

All current and approved ITC-SA policies and procedures have, as of the 1st of September 2014, been applicable to the new membership.


Fred Wagenaar (t) 011 974 1061 (e) [email protected](w) www.itc-sa.org

The ITFB and ITC-SA have engaged in discussions with regards to this integration for a number of years, and at the General Meeting held in October

2013, members present agreed that the Board had their approval to begin with the integration between the ITFB and ITC-SA. At the Annual General Meeting held in May 2014, the members present unanimously agreed that the ITFB/ITC-SA integration should take place.

On the 21st of August 2014, the ITC-SA and the ITFB concluded on all final arrangements for the integration of the ITFB into the ITC-SA, meaning that all ITFB members are, from the 1st of September 2014, ITC-SA members, and that all references in future will be to the ITC-SA-TFB and not the ITFB.

King Construction - House Rowe

NE

WS

J AN - FEB 2015 17

FAST

EN

ING

SY

STE

MS

In 1967, Altenloh, Brinck & Co Company introduced the SPAX self-tapping screw for use in timber with, for the time being, the new Pozi cross recess, into the market. The

most common screws were those with countersunk head and with full thread for screws in lengths of up to nearly 70mm respectively with partial thread for screws in lengths longer than 70mm.

In the following years, self-tapping screws substituted lag screws for several reasons, mainly because self-tapping screws are quick and easy to use and the installed connection in total is more cost efficient. Furthermore, self-tapping screws have a defined strength and higher load-bearing capacity. Today a variety of self-tapping screws are available on the market, including different head shapes for different applications.

For standard applications in timber design and building, screws in lengths of up to 800mm, with either partial thread or full thread, with outer thread diameter as far as 12mm, and for special applications up to 14mm outer thread diameter, are used.

Strength properties and standards for design and installation, which are unique for the respective screw in use, are also stated in the European Technical Approval (ETA).

General information regarding the design of self-tapping screws and load-bearing charts, based on the European Standard for Designing Timber Structures Eurocode 5 (EC5) and the respective SPAX European Technical Approval (ETA), can be found in the SPAX design guide which is available from Faitsch Products/Fixtec Fasteners.

Do it once. Do it right. SPAX screws, distributed to the South African market by Faitsch Products/Fixtec Fasteners, offer optimal fastening solutions for roofing applications.

18 JAN - FEB 2015

FAST

EN

ING

SY

STE

MS The main head shape designs are

countersunk head and washer head. Countersunk head is a universal multipurpose head shape for timber-to-timber and steel-to-timber connections.

It countersinks itself flash into timber and fits nicely and neatly into pre-drilled and countersunk steel plates. The use of washer head is mainly for timber-to-timber connections and is able to create high clamping forces to hold the building parts in position with high force.

Partial threaded screws are able to tighten building parts together and are even better in combination with washer head. The shank of the partial threaded part should be a minimum length of the thickness of the building part, which is to be attached. Common applications for washer head screws are rafter-to-plate connections or the connection of pre-fabricated wall panels to each other, and due to the head shape design, washer head screws are able to transfer higher pull-out values in comparison to lag screws. Therefore, washer head screws are perfectly applicable to tighten building parts together.

Cylindrical heads are in use only for full threaded screws or for screws with fixing thread, such as SPAX decking screws. Full threaded screws are unable to tighten building parts together.

The main benefit of full threaded screws is the capability of high tensile load-bearing capacity, limited only by the screw strength itself. For building and design with timber this is a very important load-bearing behaviour. It is therefore possible to reinforce timber building parts, such as notched beam support, with full threaded screws. The reinforcement prevents the notched timber from splitting due to stress perpendicular to the grain in the early stages of loading and increases the load-bearing capacity of the beam by far.

Furthermore, inclined driven-home full threaded screws are in use to connect a brace to a post and a plate or to connect a plate to a post quickly and easily. By carrying out a connection in this way, sheet metal connectors or big bolted joints can be avoided and the screwed connection can be completed to appear almost invisible.

SPAX screws have different point designs, such as 4CUT or CUT. Both point designs improve processing and reduce splitting of timber, also driving home torque.

20 JAN - FEB 2015

FAST

EN

ING

SYST

EM

S

Even so, the self-tapping screws can be driven home without pre-drilling, and depending on the timber used, pre-drilling is recommended and required. Driving home a screw is the most demanding process in a screw’s life, and once it is driven home, bearing loads are less demanding. Hardwood timber with a characteristic density of more than 500kg/m³ shall be pre-drilled properly to the full length. By pre-drilling the timber, unexpected damage to the screw can be prevented.

In timber design and building, for example, for rafters with 40mm to 60mm width, washer head screws with 6mm outer thread diameter should be used. For rafters from about 50mm in width or wider, washer head screws with 8mm outer thread diameter are most common.

Screws made of carbon steel need corrosion protection. The yellow zinc passivation, a galvanic zinc plating, is the most common corrosion protection. WIROX is a SPAX-developed galvanic plating, providing higher corrosion resistance and increased environmental acceptance compared to the yellow zinc passivation.

The best possible corrosion resistance is provided by the use of appropriate stainless steel screws. In Europe today the main stainless steel in use is 304 (A2) and for higher corrosion resistance 316 (A4) is used.


(t) 021 853 5101(e) [email protected] [email protected] (w) www.fixtec.co.za

JAN - FEB 2015 21

TIM

BE

R T

RU

SSE

S

Sometimes we need to reflect on what we are doing, and we should ask ourselves if we really understand the difference between acting responsibly and adding value

to the industry in which we operate and through which we earn a living. Do we really understand the consequences of unscrupulous dealings with non-reputable suppliers of inferior quality products?

Wagenaar quotes a recently reported experience, which once again highlighted the fallacy of placing cost above quality, and the resultant pain that the uninformed consumer had to bear.

A timber roof structure which was manufactured by an operator that is not a registered member of the ITC-SA was supplied. The consumer realized that, due to its appearance, something was wrong with the roof and requested an ITC-SA Roof Inspector inspect the roof.

On inspection it was found that the roof structure was under- designed, was manufactured with components that were not tested in accordance with industry norms and standards, and was poorly erected.

The result was that the consumer had to incur the cost of removing the roof structure and had to replace it with one compliant in design and material specification. The only recourse available to the consumer in this case was litigation, which proved too costly to pursue. Luckily, an ITC-SA-accredited Fabricator came to the party and resolved the structural design and material requirements that were required to ensure an occupation certificate and proper future insurance cover over the property.

In another example quoted by Wagenaar, during a routine inspection, an ITC-SA Roof Inspector stumbled across timber that was used as structural timber in the manufacturing of an in-situ built roof structure for an upmarket residential home. The timber was marked as structural (‘S5’) with the necessary marking as per SANS specifications, but needless to say, it did not comply with any mark specifications. The finger jointing of the structural members was also inferior and non-compliant, the average thickness of the members being 35mm. The structural and compliance markings were at 400 intervals, visible and present. The only problem was that the markings were fraudulent and done by a self-made stamp. The timber was confirmed to have been ordered via voicemail and delivered without a delivery note and, you guessed it – no invoice.

Again, the question is raised: Should the built environment allow this lack of integrity and unscrupulous trading in our industry, and without any consequence? The answer, very definitely, is no, we must not and we cannot tolerate this behaviour.

One may ask if civil and criminal (in the case of a fatality) legal prosecution are the best routes for resolution, or should one rely on statutory bodies like the National Home Builders Registration Council (NHBRC) and the National Regulator for Compulsory Specifications (NRCS) to address such practices?

The financial and reputational consequences for the industry also need to be considered. The membership of the ITC-SA, specifically, has an expectation that the institution will actively work towards rescinding the effects and consequences of bad industry practices on consumers, industry partners and specifically the ITC-SA-accredited members who do comply and who also have a zero tolerance towards occurrences such as these, which will have a profound effect on the built environment in South Africa.

Therefore, the ITC-SA as a SAQA-approved professional body will endeavour to root out all unscrupulous non-member practitioners that discredit our working environment. The ITC-SA will assume an attitude of zero tolerance and eradication in this regard, and will not allow this unlawful and unprofessional behaviour to persist, as the consequences could well be fatal to both the consumer and the industry at large.

Above boardFred Wagenaar, Executive Officer of the Institute for Timber

Construction SA (ITC-SA) offers insight into investing in a reputable product and service provider versus a non-reputable one.

Fred Wagenaar, Executive Officer of the Institute for Timber Construction SA (ITC-SA)

SELF DRILL FOR STEELCLASS 3 AND CLASS 4

TIMBERFIX

R

FOR TIMBERCLASS 3 AND CLASS 4

TIMBERFIX

R

COLOUR COATED HEADS AVAILABLE

WAFER HEAD FOR STEELCLASS 2 AND CLASS 3

UP TO 150mm

UP TO 150mm

LONG LENGTH SCREWS

WAFERFOR STEEL

HEX SELF DRILLFOR STEEL

AND

TIMBERFIX

R

AND

FOR TIMBER UP TO 150mm

IN STAINLESS STEELCONFORMS TO AUSTRALIAN STANDARD AS3566

TRACEABILITY

is a registered trademark of TIMBERFIX

R

B8

B8

B8

B8

B8

SOUTHERN AFRICAN DISTRIBUTORS OF ROOFING FASTENERS

GOODWOOD CAPE: (021) 591-9129MARCONI BEAM CAPE: (021) 552-0383 RANDBURG GAUTENG: (011) 791-1851

B8EXCEEDSCLASS 4

NEW

www.multifix.co.za

22 JAN - FEB 2015

The ITC-SA will endeavour to expose and deal with individuals or companies and/or those corporates that take this route. All participants manufacturing and/or supplying material and/or products in the timber construction industry need to recognize their professional liability to act and to promote their businesses ethically and correctly, and always understand the consequences that may arise from allowing bad practice to prevail.

Wagenaar concludes, saying that quality control, together with proper risk management, should be the order of the day. There will no longer be room for those who do not comply with and/or share this sentiment in the industry. The ITC-SA will act against all transgressors, including its membership, and will alert and support the regulating authorities to act on behalf of the industry and consumer.


(t) 011 974 1061(e) [email protected](w) www.itc-sa.org

Since all good practice has to start at home, the ITC-SA has a defined Code of Professional Practice and Disciplinary Process, to deal with membership transgressions. Wagenaar has confirmed that the ITC-SA will provide assistance to the Statutory Regulators, being the NHBRC and the NRCS in the investigation and exposure of fraudulent practices.

TIM

BE

R T

RU

SSES

SELF DRILL FOR STEELCLASS 3 AND CLASS 4

TIMBERFIX

R

FOR TIMBERCLASS 3 AND CLASS 4

TIMBERFIX

R

COLOUR COATED HEADS AVAILABLE

WAFER HEAD FOR STEELCLASS 2 AND CLASS 3

UP TO 150mm

UP TO 150mm

LONG LENGTH SCREWS

WAFERFOR STEEL

HEX SELF DRILLFOR STEEL

AND

TIMBERFIX

R

AND

FOR TIMBER UP TO 150mm

IN STAINLESS STEELCONFORMS TO AUSTRALIAN STANDARD AS3566

TRACEABILITY

is a registered trademark of TIMBERFIX

R

B8

B8

B8

B8

B8

SOUTHERN AFRICAN DISTRIBUTORS OF ROOFING FASTENERS

GOODWOOD CAPE: (021) 591-9129MARCONI BEAM CAPE: (021) 552-0383 RANDBURG GAUTENG: (011) 791-1851

B8EXCEEDSCLASS 4

NEW

www.multifix.co.za

TIM

BE

R T

RE

AT

ME

NT

It is important to note that there are two types of wood preservation; primary (industrial) and secondary (DIY). In primary preservation, wood

is pressure treated with an industrial chemical wood preservative, for example, CCA, TBTN-P or creosote. This process increases the long-term durability and resistance to fungi and insect attack. Primary preservation is prescribed in SANS Standards, Compulsory Specifications and Building Regulations.

Secondary preservation is used for supplemental (preventative) and/or remedial (corrective) purposes and applied by hand, for example, treating previously untreated timber already in use, or exposed ends of machined pressure-treated timber.

Protective wood sealers or varnishes are not regarded as secondary preservatives unless they contain active ingredients (biocide). Without active ingredients, such finishes merely protect against weathering, like moisture and UV rays, and not fungal and/or insect attack.

Preservative Treated Timber

The natural durability of our commercially grown species like Pine and Eucalyptus is low, rendering them susceptible to insect and fungal attack. It is therefore imperative that these timbers are preservative treated when used in

areas where they may be exposed to wood-destroying fungal decay and insects.

Courtesy of Rustic Homes

Courtesy of Eco Log Homes

24 JAN - FEB 2015

FINISHING TOUCH

• Taperedridgetile• Anglebuttridgetile• Buttmonoridgetile• Anglecollarridgetile• Hipstartertile

• Colourvariations• Variousstylesand

finishes• Qualityinstallation

Thehighestqualityrooftilesatacosteffectivepricethatenhancesany building construction, only from the Technicrete DoubleRomanandTuscanRoofTiles

Accessories: Available in:

Technicrete isa tradingdivisionof ISG,a leadingsupplierof innovative infrastructureproducts to theconstructionandminingmarketsinSouthernAfrica.

paving | masonry | roof tiles | erosion protection retaining walls | drainage | kerbs | precast products

Tel:0861266267www.technicrete.co.za ISO9001:2008certified

SABSmarkonapplicableproducts

TIM

BE

R T

RE

AT

ME

NT

PRIMARY PRESERVATION OF TIMBER IS CATEGORISED INTO ‘H’ CLASSES FOR DIFFERENT END-USE APPLICATIONS:

Be sure to choose the correct H class of treated timber for your intended application and apply remedial preservative to all cross-cut and exposed areas used above ground, i.e. in H2 and H3 exposures. Ensure that the original preservative treated envelope of all treated timber and poles that are used in H4 to H6 exposure conditions, i.e. indirect contact with ground, water or marine waters, have not been cross-cut. Apply a suitable wood sealer when the natural non-weathered look of the exterior timber is desired.

For more information on primary preservative treated timber and wood preservation in South Africa, contact:

(t) 011 974 1061 (e) [email protected](w) www.sawpa.co.za

H CLASSES PRESERVATIVE TYPES TYPICAL END-USE APPLICATIONS PROTECTION AGAINST

H2 – DRY INTERIOR ABOVE GROUND

• CCA, CuAz, ACQ & Boron• TBTN-P and ZP

Roof trussesFrame wall constructionInterior doors and joinery

Wood destroying insects

H3 – EXTERIOR ABOVE GROUND

• CCA, CuAz & ACQ• Creosote

Decking, cladding, exposed structural timber/beams

Fungal decay and wood-destroying insectsH4 – EXTERIOR IN-

GROUND• CCA, CuAz & ACQ• Creosote

Timber used in the groundPoles used in structures, fencing, landscaping and garden features

H5 – FRESH WATER & HEAVY WET SOIL CONTACT

• CCA, CuAz & ACQ• Creosote

Jetties and walkways Timber and poles used in structures, fencing, landscaping, etc., but directly in contact with fresh water/heavy wet soils

Fungal decay

H6 – MARINE • CCA plus CreosoteJetties, quays, marine walkways, retaining walls and barriers

Marine borer and fungal decay

Courtesy of Coastal Trusses

Courtesy of Rustic Homes

26 JAN - FEB 2015

The Turnkey Green Energy Solutions Company

OUR SERVICES

CONTACT US

• Project Specific Systems

• Warranty & Maintenance Facilitation

• Project Design

• Rebate

• Administration

• Project Management

•• Product Supply

• Project Financing

• Trained Installation Teams

• Tender Completion

• Green Energy Systems Procurement

Offering world class turnkey renewable energy tailor-made project solutions throughout Southern Africa, including tender completion and submission, trained installation teams that offer renewable energy solutions to all project developers, architects, insurance houses and Government.

TrueHeat Projects has the experience and capability to drive complete renewable energy projects from consultancy to installation.

Office: 076 659 5190 or 010 003 0127

Theuns van Aardt: 082 783 0571

Natalie Ndlovu: 079 835 4787

Email: [email protected]

AD

VE

RT

OR

IAL

Youngman Roofing supplies materials for

local wind turbine factory Youngman Roofing, a well-established company of 25 years and a leading supplier of roof sheeting and associated products in various

materials and profiles, has recently supplied materials to the GRI Wind Steel SA project in Atlantis.

Photographs: David Rogers

AD

VE

RT

OR

IAL

AD

VE

RT

OR

IAL

Recently completed and ready for production, this impressive, uniquely long building situated in the Green Technology Industrial Park in Atlantis, owes its design

cues to the nature of the activities that will take place within: the production of wind towers for South Africa.

Launched in November 2014 amid a national outcry over electricity in short supply, this facility will provide jobs (the vast majority of which would be dedicated to the local Atlantis community) to 200 people and, at full capacity, will be able to produce 150 towers per year. The building owner, GRI Renewable Industries, wind industrial division of Corporación Gestamp, a large international group and market leader in the production of wind towers, has invested R300m to develop this impressive and much-needed facility.

The building itself stands at a rather high 17m (about five storeys), but it is the sheer length of the building (330m) that is truly breathtaking.

Weighing in at an approximate total of 700t, the roof sheeting and side cladding alone contributed 112t, equating to approximately 24 500m² of metal sheeting (greater than 32 000 linear metres). The material specified was Clean Colorbond™, with a coating mass of AZ150, supplied in a specially mixed, very attractive and unique blue colour, with African White added to break the single colour. The sheeting was manufactured in Widek profile, which has similar benefits to IBR, but with extended cover width.

The factory also incorporates the use of advanced power-saving technologies, and is designed to benefit greatly from natural ventilation and light. The design and development was by main contractor Dombo, Du Plessis and Partners, and completion only took approximately nine months from initial groundwork, which is an excellent achievement.

32 JAN - FEB 2015

Cnr Berkley Road and Bax Street, Maitland, Cape Town 7405

T: 086 126 2866 F: 086 610 5441 W: www.corroshield.co.za E: [email protected]

TESTED BY:

TIMTAPP®INTRODUCING

As close to the edge as you will ever get

S17

AS CLOSE TO THE EDGE AS YOU WILL EVER GET

10 mm

Install as close as 10mm to Timber edge

No more splitting of timber substrates

High upper thread pitch for improved thin sheet holding

Easy drive with grooved thread design

AD

VE

RT

OR

IAL

ABOUT YOUNGMAN ROOFING: Youngman Roofing manufactures IBR, Corrugated and Concealed Fix profiles (i.e. Diamondek), which are available in the following materials: Galvanised, Zincalume®, Clean COLORBOND™ and Colorbond™ Ultra. The company supplies polycarbonate and fibreglass sheeting in a variety of profiles, including IBR, corrugated and Big 6, and manufactures a comprehensive range of flashings and pressings. In addition, Youngman Roofing is able to manufacture custom-made flashings and box gutters, and together with an assortment of Corroshield® fixings, the company holds a range of waterproofing, insulation and sealing materials to suit most applications. Youngman Roofing also recently became sole-distributor of Lambdaboard in the Western Cape, which is a superior ceiling board boasting great compressive strength and rigidity, and a class-leading, long-term R-value.

PROJECT FACTS:DEVELOPMENT & DESIGN:Dombo, Du Plessis and Partners (Africa)(Pty)Ltd.MAIN CONTRACTOR: Dombo, Du Plessis and Partners (Africa)(Pty)Ltd. STEEL ERECTING & SHEETING: Lemco Structural SteelAREA: Atlantis, Western CapeCOMPLETION: End 2014

For more information, visit www.youngmanroofing.co.za.

34 JAN - FEB 2015

Logo Plexi

10 March 2014 02:39:19 PM

926 AdvertFinal.indd 1 2015/01/30 8:32 AM

PO

LYC

AR

BO

NA

TE

SHE

ET

ING

January 2015 brought an exciting dimension to the business of Ampa Group (Pty) Ltd., with the Group’s appointment as the sole distributor for SABIC IP Lexan polycarbonate sheet

and film products in Sub-Saharan Africa. For Ampa Group, the distributorship is a solid endorsement of its long-held commitment to innovation and continuous improvement.

PEOPLE POWER = BUSINESS POWERA key Ampa Group philosophy is rooted in the belief that strategic knowledge and cutting edge skills are the cornerstones on which successful businesses are built.

To this end, there is a relentless focus on hiring the right people for the job and augmenting their capabilities at every level with continuous training and development. Lexan is no stranger to the South African market and over the past 32 years its products have been used extensively with great success.

Dean Treges, Sales Manager and Victoria Majoni, Internal Sales, are Lexan product experts, and, as a result, it made perfect sense for the Group to bring them on board. In conjunction with their comprehensive experience in dealing with Lexan products, their all-round understanding of the plastics industry will add considerable value to the operations of the Group and its respective customers.

Chemistry for sustainable synergy –

an equation that worksTake a global leader in providing innovative engineering thermoplastic

solutions across the world and match it with a South African organisation that has an acclaimed track record for importing, manufacturing and

distributing quality plastics for a range of applications, and you have the scientific formula for a synergistic partnership.

JAN - FEB 201536

THE WORLD’S MOST INNOVATIVE PORTFOLIOOf particular significance is SABIC’s Lexan Thermoclear Polycarbonate sheet portfolio. Often used for roofing, cladding and office partitioning, this multipurpose sheeting is available in a variety of structures, colours and finishes. Each lightweight sheet combines ease of installation with excellent thermal insulation alongside UV and fire resistance. A factor that ensures the product’s high desirability amongst architects, builders and roofers is its long-term light transmission capabilities. The availability of the sheeting in an array of colours that includes clear, opal white, solar control, blue, bronze, grey and green makes it ideally suited for residential, greenhouse and commercial roof glazing, building facades and cladding in addition to skylights and walkways.

Lexan Thermoclear sheets are obtainable with a range of speciality coatings such as Easy Clean, which is a world-first, self-cleaning innovation.

With UV protection on both sides and a hydrophobic coating on the outer surface, it causes large droplets of water to form which then wash away dirt.

Thermoclear SunXP sheets are ultra UV resistant and serve to lower radiation, yellowing and loss of light transmission. As an added bonus they come with a 15 year guarantee.

Thermoclear Dripguard sheets have a specially developed coating on the inner surface that reduces condensation droplets.

Ampa Group will also be distributing 9030 and WLS sheeting, both of which have become something of a necessity in South African construction today. Combining high impact resistance with excellent optical clarity the sheeting delivers superior protection against intrusion.

Marguard sheeting has all the properties of polycarbonate material with an additional proprietary hard surface coating on either one or both sides. As a result it is highly resistant to abrasion and damage caused by weather conditions.

Lexan sheet products that are directly extruded from polycarbonate resin deliver a number of significant advantages over many other glazing materials, especially when it comes to design freedom and thermal insulation. The fact that they are lightweight makes for ease of handling and installation. They also rate exceptionally well in any fire performance test.

Alongside the various types of sheeting, Ampa will also supply a selection of polycarbonate films. SABIC offers leading market warranties and full support from their Head Office in Holland for every conceivable type of project.

TWO ORGANISATIONS WITH SIMILAR MINDSETSLike SABIC, Ampa Group enjoys a reputation for being able to adapt swiftly to the ever-changing requirements of its customers. Both organisations are irrevocably committed to improving quality of life in the environments in which they operate. Whilst SABIC products touch millions of lives around the world on daily basis, Ampa replicates this on a smaller scale in sectors that include the printing, packaging, automotive, fabrication, construction and engineering industries, as well as professional disciplines, such as architecture, interior and exterior design and quantity surveying.

As SABIC focuses on growing its global presence, Ampa Group, which already has a well-established national distribution network with a head office in Johannesburg and branches in Cape Town, East London and Port Elizabeth, has also set its sights on expanding its existing footprint on the African continent. At present it has distributorships in Namibia, Zimbabwe, Zambia, Botswana, Mozambique, Tanzania, Angola, Cameroon, Ethiopia, Ghana, Senegal, Togo and Benin. However, given the business opportunities it has recognized elsewhere on the continent, Ampa Group has plans to make its imprint on the rest of Africa. Though SABIC and Ampa Group are separate and distinct entities, their chemistry gels and the economic alliance they have established has all the criteria for a sustainable, mutually beneficial, long-term relationship.

For more information, visit www.ampa.co.za.

JAN - FEB 2015

PO

LYC

AR

BO

NA

TE SH

EE

TIN

G

37

WA

TE

RP

RO

OFI

NG

& S

EA

LA

NT

S

The aim of using Butyl Tape in buildings is to lessen the energy usage, ventilation air loss and to improve on the efficiency of water saving systems.

Butyl Tape is extremely durable, long lasting and the perfect sealing solution for green building projects.

ENERGY LOSS: Much of the energy needed to cool buildings in summer and to heat them in winter is lost through the roof sheeting. By correctly sealing the roof sheeting, a large amount of energy that would otherwise be required for climate control can be saved.

AIR LOSS: Energy is also lost when ducts and ventilation systems are leaking. Energy is lost trying to keep the system running at full capacity. By sealing ducting and ventilation systems, energy will be saved.

WATER LOSS:Many companies and private residences collect water through gutters and store it in water tanks, but leaking gutters lose this valuable resource. Butyl Tape offers a long-lasting solution for leaking gutters.

Butyl Tape is manufactured by Butyl Seal (Pty) Ltd.


(c) 083 309 5028(e) [email protected] (w) www.butylseal.co.za

Butyl Tape and green building

Green building, also known as green construction or sustainable building, refers to a structure or process that is environmentally

responsible and resource-efficient throughout a building’s lifecycle.

38 JAN - FEB 2015

LSF

B

This is according to John Barnard, director of the Southern African Light Steel Frame Building Association (SASFA). “The biggest growth of LSFB is in multi-storey

office and commercial buildings, where it is replacing heavy masonry curtain walls,” Barnard says.

He adds that at the recent Steel Awards, 19 LSFB entries were received – a third of the total number of entries! “There is no doubt that LSFB has come of age in South Africa. In the last eight years it has become a viable alternative building method for a range of low- to medium-rise buildings fully accepted by engineers, architects, quantity surveyors, builders and the financial institutions.”

TRAININGBarnard says that one of the central reasons for the success of the LSFB method has been the ongoing training initiatives, undertaken by SASFA with the help of the industry at large, to protect and enhance the quality of LSF buildings.

This year, the training, which focused on designers, building contractors and building inspectors, included:

• A 6-day LSFB training course for builders in Alberton, Windhoek, Durban and Midrand. A total of 79 people attended bringing to 245 the total number of people who have successfully completed the course. The course presented in Namibia was the first outside SA borders with students attending from the DRC, Zambia and Namibia.

• A lecture to University of Pretoria final year building science students, which was delivered to a full lecture room – 110 students.

• Lectures to assessors for the banks in Sandton. Some 80 assessors attended.

Light Steel Frame Building riding high

The steel consumption of the Light Steel Frame Building industry (LSFB) has grown to 25 000t per annum of high strength galvanized steel sheet,

achieving double digit annual growth rates over the past five years.

Several high profile users, including McDonald’s South Africa, are changing their building philosophy and rolling out sustainable light steel frame buildings across the country.

40 JAN - FEB 2015

LSF

B

CODES & STANDARDSFrom inception one of the most important tasks of SASFA was to develop codes and standards for the then fledgling LSFB industry, which it did successfully. Barnard reports that this year, work has started on a comprehensive revision of SANS codes and standards with the following being achieved in the process:

• Representation by SASFA on the SANS 10400L (Roofs) committee of the SABS, to ensure that LSF is correctly covered in the code revisions.

• Representation by SASFA on the SABS committee SC98C, which is responsible for all standards dealing with steel or aluminium in building and construction.

• Representation by SASFA on the working group tasked with the revision of the NHBRC handbooks.

• Thorough revision of SANS 517 which was largely completed in 2014. The document is being finalised at present after which the SABS will distribute the draft nationally for public comment.

ACCREDITATION AND QUALITY CONTROLAnother important milestone for the LSFB industry in 2014 was the assessment by the University of Stellenbosch of the three LSF building systems in use in South Africa, which were accredited as suitable for use in this country.

“This is a significant step forward for the industry and to keep the momentum going. Final preparations are under way to roll out the certification of LSF builders throughout the country,” Barnard says.

In terms of quality control, Barnard says that SASFA is playing an increasingly important role in ensuring the highest possible standards in the industry. “For example, SASFA was recently approached by three clients who were not satisfied with their LSF buildings. The technical aspects of the projects were investigated by SASFA and remedial measures agreed with the builders.

We believe that it is now clear to the industry that one of SASFA’s key roles is the ‘policing’ of standards and that we will act swiftly and efficiently to bring into line any sub-standard service providers,” Barnard says.

MARKET EXPANSIONBarnard says that a growing number of enquiries from neighbouring countries are being received. “SASFA has signed up members in Namibia and Zambia, and is in contact with several other countries in the SADC region. From a local perspective Barnard reports that there was a net gain of 10 members, proving that the strategy formulated to expand membership is having the desired effect.

“Overall the LSFB market is growing significantly and indications are that this trend will continue well into the future,” Barnard says.

The proof of the pudding is in who is using the method. “There are several high profile users including McDonald’s South Africa, which is changing its building philosophy by embarking on rolling out sustainable light steel frame building (LSFB) restaurants across the country. Its efforts won them the LSFB category at Steel Awards 2014.

“By using LSFB on their restaurants material wastage is reduced by an average of 30%, transport costs by 80% and the carbon footprint is significantly reduced. On top of this, McDonald’s is able to cut back the construction period required, opening the outlet four months earlier than if more traditional building methods had been used.”

One of the central reasons for the success of the LSFB method has been the on-going training initiatives.

42 JAN - FEB 2015

CALL 0861 727 663 TO BOOK YOUR

CLASSIFIED ADVERT

CE

ILIN

GS

Fortunately, this problem can be easily overcome through the use of performance-enhanced acoustic ceiling boards. This was recently demonstrated by leading

South African acoustic engineer, Ivan Lin, who specified the installation of Saint-Gobain Gyproc acoustic ceiling board, Rigitone, throughout the large open plan ground floor space of his Johannesburg home, to optimize sound and minimize noise.

Rigitone is a completely seamless and monolithic ceiling system that offers the perfect combination of acoustic performance and creativity, offering high levels of acoustic absorption, while offering the ceiling a homogenous and architecturally pleasing appearance. It comes in six different patterns, including regular and random perforated design options.

Acoustic ceiling boards gaining popularity in the

residential market Open plan spaces are becoming increasingly popular in the design of

residential homes. This design option allows for optimizing light in the home and the added benefit of uninterrupted views across a number of rooms in the communal living space, making home family life more social. The

downside is that noise transmits easily around the house.

44 JAN - FEB 2015

There are a number of factors that influence the absorption behaviour of Rigitone acoustic ceilings:

• The bigger the proportion of the board’s perforated areas, the better the sound absorption at high frequencies.

• The internal acoustic tissue works in conjunction with the board’s perforations to provide the sound absorption performance.

• The application of a paint finish in no way compromises the acoustic performance.

An additional layer of mineral wool insulation improves the sound absorption at low frequencies. Acoustic ceiling systems have traditionally been used in the construction of spaces, such as corporate offices, hospitals, theatres and education facilities, which require optimal noise management solutions.

The use of acoustic performance ceiling boards in the residential sector is very recent, but will fast gain popularity given its ability to optimize sound, especially in open plan spaces making for a more controlled interior environment, whilst enjoying the benefits of this new design trend.

JAN - FEB 2015

31655 - FA SA Roofing.indd 1 2014/12/11 1:19 PM

The Guide is based on the SANS 10407 (Thatched Roof Construction) specification which is part of the National Building Regulations (SANS 10400). It is

the exclusive property of the TASA, and the Guide, among others, aims to make the specification requirements more understandable and accessible, not only to professionals, but also the general public, with the use of photographs and sketches.

The Guide is for sale to municipalities, professionals, contractors, clients, etc. in an effort to raise the standard of the thatching industry. As a result of the many complaints and inquiries received, it is increasingly obvious that many contractors lack sufficient knowledge to erect thatch structures, thereby causing enormous harm to the industry. A Guide to Thatching in South Africa can be ordered as an e-book from TASA at [email protected] at R500. On receipt of the proof of payment, the book will be e-mailed in PDF format. The Guide is expected to be available for sale during 2015.


(c) 083 283 8429(e) [email protected] (w) www.sa-thatchers.co.za

TASA publishes SA thatch guide to educate and informIn the near future, TASA (the

Thatchers Association of South Africa) is to make available to the industry its electronic guide book

on thatching in South Africa. Banks, insurance companies, municipalities and clients will find this informative

guide to be of great value.

JAN - FEB 2015

HWZ International SA Pty (Ltd.) Viewing the Showhouse by appointment with Zaida Davids [email protected] ｜ +27764019120

www.novaspruce.co.za

SAWMILL TIMBER｜FINGER JOINT BEAMS｜GLUE LAMINATED BEAMS｜OSB｜CEILING AND FLOORING !

You can find our products at the warehouse of our Distribution Partner Ian Fuller Agencies in Cape Town.

Visit us at our Showhouse in Bellville and find out innovative ways to spruce up your home!

LSF

B

Dezzo Roofing, which started in 2000 and specialises in the manufacture and supply of lightweight steel roof support systems across South Africa, celebrates a

significant achievement this year – 15 years of quality roofing.

Through research and development in both southern Africa and Australia, Dezzo Roofing established itself as a pioneer in lightweight steel roof trusses specifically designed and manufactured to carry concrete roof tiles.

Today, the company’s product range caters for all roofing styles, from basic lattice and girder beams to carry profiled steel sheeting to trusses that can accommodate concrete roof tiles, pressed steel tiles, or any profiled steel roof sheets.

Battens and purlins are pre-cut to length to suit every roof, thereby reducing on-site cutting and waste, while trusses are manufactured by highly trained artisans and assembled in jigs in order to maintain consistency.

The Dezzo Roofing system is supplied in a knock-down kit that includes trusses, battens, tiling battens, beams and purlins. All the components included in this steel roof support system are manufactured from zinc- and aluminium-coated steel, as it has proved to be stronger, lighter and more economical to use than other, more traditional roofing system materials.

Since 2000, Dezzo Roofing has supplied over two million square metre of lightweight steel trusses for projects that have been completed in South Africa, Angola, Mozambique, Zambia and Botswana.

“With our manufacturing facility based in Durban, we are able to deliver to any part of South Africa in kit form,” says Vee Singh, National Sales Manager of Dezzo Roofing, adding, “Our eight roll-forming machines, together with a fully equipped cut-to-length line and bending facility, are capable of profiling 500 tons of steel per month. This translates into roughly 90 000m² of roofing.”

15 years of roofing successAnother milestone for local light steel support system

manufacturer, Dezzo Roofing

Dezzo Roofing’s lightweight steel roof support system installation.

48 JAN - FEB 2015

MOUNT MORIAH HOUSING PROJECTA project highlight for Dezzo Roofing since the start of the business is that of a housing development in Durban North, which was completed in 2008 – the Mount Moriah housing project.

Singh notes that the client’s specifications for the project included double-boxed top chord sections, and Double Roman roof tiles with standard V-ridges were tied down with plastic storm clips and attached to the steel tilting batten.

“After extensive research and engineering, we replaced the double boxed chord sections with a single profiled top chord, thus reducing the overall weight of the structure,” Singh says. “We also introduced a turndown section at the truss overhang, allowing for gutter brackets or fascia boards to be fitted without the need for timber sprockets.

Further engineering advances eliminated the need to use wall plates, allowing the Dezzo Roofing truss to be installed directly onto levelled blocks. The conventional plastic storm clip was replaced with a longer lasting patented galvanised spring clip,” he adds.

All Dezzo Roofing system designs are carried out by an independent structural engineering firm registered with the South African Institute of Civil Engineering (SAICE) and the Southern African Steel Frame Builders Association (SASFA). Dezzo Roofing currently employs the services of Martin Upton Structural Technologies, which is represented by Ian Upton, (Pr. Tech Eng) M.Dip Tech (TMSAICE), ensuring that each and every Dezzo Roofing project is of an exceptional quality and set to last.


(t) 031 713 6571(e) [email protected] (w) www.dezzoroofing.co.za

LSFB

Completed projects in Howick and Cato Ridge.

An interior view showing Dezzo Roofing’s lightweight steel roof support system.

A completed Dezzo roof.

JAN - FEB 2015 49

DUE FOR PUBLICATION FIRST QUARTER OF 2015 TO BOOK YOUR SPACE CONTACT: (t) 0861 SA ROOF (727 663) (e) [email protected] (w) www.trademax.co.za

ANOTHER UNIQUE PRODUCT FROM

Presented in categories and sub-categories, the SA Roofing & Insulation Professional User’s Guide connects suppliers, manufacturers, architects, specifiers, installers, contractors,

developers, commercial and industrial property owners as well as key industry professionals, including associations, institutes and other leading industry representative bodies.

THE ONLY ANNUAL PUBLICATION IN SOUTH AFRICA DEDICATED ENTIRELY TO INNER AND OUTER ROOFING SYSTEMS

CAN YOU SERIOUSLY AFFORD NOT TO ADVERTISE

IN THIS GROUNDBREAKING

ROOFING & INSULATION

PRPROFESSIONAL USERS GUIDE ?

2015 EDITION

EV

EN

TS

With the need to maintain and monitor infrastructure in the spotlight, more companies and facilities will look towards innovative solutions to keep their

assets and infrastructure protected. Coatings for Africa 2015 is a comprehensive three-day conference programme catering for all needs across the value chain. A technical symposium presents the latest innovation and developments the global paint and coatings industry has to offer the African marketplace, and how these advancements help service their clients.

The seminar focusing on coatings for construction offers a one-stop solution for users of paints and coatings from the construction industry. The seminar looking at protective coatings will cover the challenges around corrosion for users from the industrial and automotive sectors. The programme is completed by a series of free workshops for users of paints and coatings products on the exhibition floor.

The African coatings industry also remains key to supporting the continent's ever-growing development requirements. The future for the paint and coatings sector looks particularly promising, given the strong economic outlook, long-term demographic growth and rising urbanisation across Sub-Saharan Africa.

Whether you are an industry giant or an exciting new entrant, Coatings for Africa connects buyers and sellers from across Sub-Saharan Africa as well as globally. Confirmed industry players including global leaders IMCD, BASF, DuPont, Dow Chemicals, Kreate, Sasol, Ferro and others have placed themselves on Africa’s top platform to showcase innovation, educate the industry and position themselves as thought leaders.

Hosted by the Oil & Colour Chemists’ Association (OCCA) and the South African Paint Manufacturers Association (SAPMA) in conjunction with Hypenica, Coatings for Africa is the biggest showcase of coatings technologies, paint and related products on the continent. Coatings for Africa connects the entire value chain, from raw material suppliers to end users of the finished paint or coatings products. Attendees can expect 120+ exhibitors, 2000 attendees, 10+ African countries represented and 30+ expert speakers.

For additional information, visit www.coatingsforafrica.org.za or email Sean Manson at [email protected].

Coatings for Africa 2015

Coatings for Africa 2015 sets the scene for progress in the African paint and coatings industry! Taking place 11-13 May 2015 at the Sandton Convention Centre in Johannesburg, the symposium and expo set out to drive innovation

and education in the paint and coatings industry across the continent.

52 JAN - FEB 2015

Hosted by11 - 13 MAY 2015Sandton Convention Centre, South Africa

Discover the latest innovation in paint and coatings applications for the construction industry!

Join the conversation 365 / 24:7

What to expect

conference delegates

visionary speakers

days of content

attendees

exhibitors

hours of networking opportunities

African countries participating

350

30+

3

2000

120+

20+

10+

Special offer for SA Roofing readers!

Don’t miss out, get in touch with [email protected] to register now!

Register online before 20 February 2015 and get10% off your conference pass. Quote SAR003

www.coatingsforafrica.org.za

Co-located with CONSTRUCTION WEEK: 11—15 MAY 2015

PAIN

TS

& C

OA

TIN

GS

Spence says 2014 was a difficult year for the coatings sector as a result of the poor economic

growth in South Africa, and the lack of activity in the roll out of tenders in the Presidential Strategic Infrastructure Projects (SIPs) programme. “Growth in 2014, in volume terms, in the coatings sector was merely in line with the GDP growth, and reflected a 10% growth in turnover. Currency fluctuations and raw material price increases prevented any further meaningful growth. The industry is waiting for the release of tenders, it’s as simple as that.”

Spence says the expansion of acceleration of training in the industry is of vital importance to make up for the enormous skills shortage. No paint application training, for example, has been offered since 1994. “The responsibility for training has to be placed back with industry which is best placed to blend theoretical training with workplace experience through the re-introduction of apprenticeship programmes. The government has failed in providing adequate mechanisms to provide training continuity for the entire construction sector, as well as related industries.”

There will also have to be much more commitment to training by the coatings industry itself in 2015 Spence adds. “The SA Paint Manufacturing Association (SAPMA) and its training arm, SA Paint Industry Training Institute (SAPITI), are now well equipped to provide training in all sectors of the coatings industry after achieving accreditation of all its training programmes. eTraining now includes the Coatings Technologist qualification, registered with the Quality Council for Trades & Occupations (QCTO), and we will also offer Manufacturing

Skills programmes training accredited by the Chemical Industries Education & Training Authority (CHIETA) for industry workers, as well as much-needed Paint Application Skills programmes for painters, and retail training programmes for retail sales personnel.”

The 2015 calendar highlight for the industry will be the Coatings for Africa 2015 conference in May 2015 at the Sandton Convention Centre (www.coatingsforafrica.com). Local raw material suppliers and manufacturers will then have the opportunity to showcase their products to the entire African coatings and construction sector.

Government support and industry commitment

needed to address coatings sector skills crisisThe critical shortage of skills will again be the most formidable obstacle

the South African coatings industry will face in 2015, says Deryck Spence, Executive Director of the SA Paint Manufacturing Association (SAPMA).

Deryck Spence, executive director of SAPMA: “The lack of skills will again be the biggest threat to growth in the coatings sector in 2015,” he cautions.

54 JAN - FEB 2015

CONSTRUCTION WEEK: 11—15 MAY 2015

12 – 14 May 2015 - Sandton Convention Centre, South Africa

• CEMENT • CONCRETE • CONSTRUCTION • ROADS • HOUSING

www.construction-week.com www.totallyconcrete.co.za

Cement, readymix and pre-cast concrete producers, specifiers, specialist contractors, engineers, architects - if you manufacture, sell, specify or work with cement and concrete

in any capacity then this is your show!

This is your one-stop-shop to learn about the latest construction innovations, technologies, drivers and investment opportunities!

FEATURING 170 SPEAKERS AND PANELLISTS INCLUDING:

Register before 27 March 2015 and save R1000!Only 200 seats available at this rate

CONTRACTOR DESIGNER INvESTOR GOvERNMENT PROPERTy DEvELOPER ARCHITECT

Hennie BotesCEO,

Moladi Construction,South Africa

Gita GovenFounding Partner and CEO,

ARG Designs,South Africa

Vinson HailuluChief Executive Officer,

National HousingEnterprises Namibia,

Namibia

William JiyanaActing DDG: Human

Settlements Planning and Strategy,

Department of Human Settlements,South Africa

Ben Pierre MalherbeChief Executive Officer,

Calgro M3 Holdings,South Africa

Joe Osae-Addo CEO,

Constructs LLC, Ghana

[email protected]

R360.00 INCLUSIVE FOR 10 ISSUES PLEASE NOTE THAT ADDITIONAL POSTAGE CHARGES ARE INCURRED FOR MAILINGS OUTSIDE OF THE RSA.

Please complete the form below and fax to: 0866 991 346

I would like to Subscribe to Renew my subscription to:

Nature of Business: .....................................................................................................

Company Name: ..........................................................................................................

PLEASE MAIL MY MAGAZINE TO:

Mr Mrs Ms Other

Surname: ..............................................First Name: ...................................................

Postal Address: ...........................................................................................................

E-mail: ............................................................ Website: ............................................

Tel: .................................................................. Fax: ...................................................

Date: ............................................................... VAT no:................................................

PAYMENT TO BE MADE TO:

Beneficiary: Trademax PublicationsBank: First National Bank - Century CityAccount no: 62187300092Branch code: 200909Reference: SUBS INITIALS SURNAME

ck 2008/097975/23

Proof of payment is attached

Please send invoice in order to make payment

www.trademax.co.zaPostnet Suite 241,Private Bag X103,N1 City, 7463

T: 0861 727 663F: 0866 991 346E: [email protected]

SUBSCRIBE TO

SUBSCRIBE TO

CONTACT: Tel: +27 11 814 1898 | Fax: +27 11 814 2166 | Email: [email protected] | Web: www.jcproofing.co.za

JCP ROOFING is a new business that came into existence through JCP STEEL, a company that has been serving the steel industry with flat steel products for over 22 years, with a reputation for excellent service, uncompromising quality and impressive lead times.

We have expanded our portfolio to supply IBR and corrugated roofing sheets to the same level of quality and service to which our customers areaccustomed to.

PRODUCTS:

IBRCorrugated Polycarbonate SheetingBullnosing/Cranking Flat SheetsSScrews & Fasteners

sa roofing january - february 2015 | issue: 66

Documents

sa roof tel

sa r36

sa roofing magazine

fastening systems

editorial content

disclaimerthe views

timber trusses

timber treatment