120

TERRACOTTA AND A

acoustic façades / technical handbook edition N°6 2005

acoustic facade

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121

> Acoustic regulation

> Synoptic diagram of the range

> Phoniceram®

and Phoniceram® dB

> Phonbric®

> Acoustic Shingle®

> Acoustic Brick

> AMB

Swimming pools, theatres, multi-purpose spaces, offices,universities, garages, roadside screens... all these spaces aresubject to acoustic correction constraints imposed by reg-ulations, to protect neighbours’ comfort and quality of life.Terreal takes care of these requirements, offering attractive,long-lasting and effective acoustic systems.

www.terrealfacade.com

112222

112244

112266

113300

113366

114400

114422

©S

ylvi

e B

asco

ul

D ARCHITECTURE

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122

ACOUSTIC REGULATION

A C O U S T I C R E G U L A T I O N S F O R H O U S I N G

Acoustic performances of acoustic absorption (alpha sabine) tested in a reverberant room,conform to the new regulations concerning acoustic correction in communal spaces inbuildings (applicable since January 1996, decree of 28.10.94).

S =

A C O U S T I C S I N R O O M S O T H E R T H A N F O R A C C O M M O D A T I O N

After the degree of 03.04.25 relating to the limitation of noise in teaching establishments;play areas in primary schools, music rooms, study rooms, dining rooms, sports halls,the following norms have to be followed according to the type of room, the performanceof the material used (α M) and the reverberation time (TR):0,4 < TR < 0,8 for volumes ≤ 250 m3 (A) 0,6 < TR < 1,2 for volumes ≤ 250 m3 (B)

It is necessary to have a wall cladding with an acoustic material (S) defined as follows:

S =

E.g: for Phonbric® : α M = = 0,94

If TR required = 0,6 and the volume = 200 m2

S = = 56,70 m2

So 56,70 m2 Phonbric® acoustic product will be necessary.

aα w x 4

0,16 x vol.α M x TR

0,16 x 2000,94 x 0,6

0,86 + 0,99 + 0,963

A C O U S T I C F O R R O A D S

Thanks to calculations carried out under the guidelines of CERTU and computer models such as MITRA (CSTB), a classification of anti-noise screens can be established. In addition to being able to measure the intrinsicperformance of materials in a reverberant room(NF S 31.003 - EN 20.354) it is also possible to measurethe efficiency of anti-noise wall on site (NF S 31.089).

R E S I D E N T I A L B U I L D I N GR E G U L A T I O N S

a = ground surface area of the communal spaceα w = performance of the materialS = surface of wall covered by the acoustic material

vol. = volume of the roomα M = Alpha Sabine average of 500, 1.000 y 2.000 HzTR = Reverberation time under conditions A and B

edition N°6 2005

Accommodation not includingindividual garages

Communal Interior Area

Individual Garage of Accommodation,Communal Garage

Activity Room excepting Garages

54 and 5151 and 48

41 and 38 With a landing door and an entrance door

54 and 51 In all other cases

56 and 53

59 and 56

3 dB (A)

Same, with a landing door and an entrance door

13 dB (A) In all other cases

5 dB (A) (Individual Garage)idem (Communal Garage)

3 dB (A)

New Regulation Improvement of New Regulationand Old Regulation

Minimum Insulation for airborne for a pink noise

emitted in dB (A)

Maximum Transmission of impact noise in dB (A) inprincipal rooms, taking floor

covering into account

Site of EmissionAny room in a building except terraces

and balconies not situated above the principal room, communal staircases

if there is a lift and service rooms

Individual Heating Unit

Mechanical Ventilation Low Output

Equipment other house

Communal area

30 New3 dB(A) in kitchens

35 and 50 (1)

30 and 35

30 and 35

30 and 35

New

New

5 dB(A) in principal rooms3 dB(A) in kitchens

41 and 38In all events

51 and 48 (individual Garage)56 and 53 (Communal Garage)

56 and 53

Old Regulation

Insulation not defined

No regulation

Individual Air Conditioning Unit 35 and 50 (2) NewNo regulation

30 and 35

35 and 38

30 and 38

70 65 5 dB (A)

Maximum Transmission of impact noise in dB (A) inprincipal rooms, taking floor

covering into account

Minimum insulationfor road noise in dB (A)

Site of Emission

INTE

RIO

REX

TERI

OR

In the new regulations, absorbent coatings are use in communal areas as follows:A = 1/4 Surface area = αw x Surface coated, - A being the area of absorption equivalent to the coating New

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G L O S S A R Y

Equivalent Absorption Area A (m2) The equivalent absorption area is the equivalent surface area of theunitary absorption factor which absorbs acoustic energy at the same rate.It is calculated by the following formula:

A = αw x SWhere αwis the unique evaluation index of absorption of the cladding and Sits surface area (m2).αw, unique evaluation index of absorption

This is a unique value corresponding to the absorption powers of the cladding.This value is deducted from absorption factors by octave bands, themselvesobtained through measurements in thirds of an octave, conforming to the ISO354 norm.αw is equal to the value of 500 Hz in a reference curve defined by theEuropean norm EN ISO 11654 (Evaluation of acoustic absorption of materialsused for building).

Octave bandThe octave band characterises the width of the frequency band where thehighest frequency is double of the lowest.In construction octave bands centered on 125, 250, 500, 1000, 2000 and4000 Hz are used.

Aerial NoisesThese begin in the air and propagate in the air: voice, loud speakers,ventilation…

Noises of ImpactImpact on an object (foot steps, moving furniture, dropped objects… )provokes vibration and emission of noise. The energy from the impact radiates through the object and thesurrounding air.

Pink NoiseThis is a standardized noise which is constant in each octave band. It isused in defining regulations to stimulate aerial noises in buildings as wellas noise from aircraft.

The NF S 30-101 norm defines it as: noise of which the spectral density isinversely proportional to the frequency.

Traffic NoiseThis is a normalised noise, used for simulating road and rail traffic noise. Itis richer in lower frequencies than pink noise. Its definition is given in thenorm NFS 31-057. The energy contained in each octave band is fixed inrelation to the energy contained in the octave band centered on 1000 Hz.The variations in energy according to the frequencies are as follows:

125 Hz ................................................................................................ + 6 dB250 Hz ................................................................................................ + 5 dB500 Hz ................................................................................................ + 1 dB1000 Hz ................................................................................................. 0 dB2000 Hz ............................................................................................. - 2 dB4000 Hz ............................................................................................. - 8 dB

Decibel or dBThe decibel is a unit without dimension allowing the expression of therelationship between the values of two powers or pressures or twointensities:> Power expressed in decibels:

Lw = 10 log W/W0, W0 being the reference of acoustic power (W0 = 10-12

watt).> Pressure expressed in decibels:

Lp = 10 log p2/p02, p0 being the reference of acoustic pressure,

corresponding to the minimum pressure perceptible by the ear withoutany background noise at the frequency of 1000 Hz (p0 = 2.10-5 Pa).

> Intensity expressed in decibels:L i = 10 log l/l0,L0 being the reference of acoustic intensity corresponding to theintensity perceptible by the ear at the frequency of 1000 Hz (L0 = 10-12

W/m2).

Weighted decibel A or dB (A)This is a unit expressing the global level of sound (i.e all frequencies included), while taking into account the variations of the sensitivity of the human ear in relation to the frequency.The weakest intensity perceptible by individuals is in fact different for lower frequencies compared to medium or high frequencies.Reverberation time T (also known as duration of reverberation) in room, in secondsThe sound energy emitted by a sound source in a room is partly reflected by the walls of the room and gives rise to a reverberant sound. The duration of a reverberation corresponds to the time taken for the sound’s intensity to reduce by 60 decibels, once the source of the emission of sound has stopped. This reverberation time depends on the size of the room and the absorption of the walls. In the calculation and measurement of normalised soundinsulation, the reverberation time of the room is taken in account. The measurement of the reverberation time is made under the same conditions of frequencies and placing as for acoustic pressure. For housing, the reference forreverberation time is 0.5 seconds for all frequencies. (see sound insulation).

FrequencyIts definition is given by the norm NF S 30-301: Number of cycles per unit of time. It is expressed in hertz. A sound appears much sharper with a high frequency and much deeper with a low frequency.

Hertz or HzUnit of measurement of frequency.

ImpactsSee Noises of Impact.

Uncertainty IAcoustic regulations have an uncertainty factor I to be taken into account when measuring the acoustic quality of housing norm NF S 31-057. This is set at 3 decibels (A) at present.

Sound insulationSound insulation concerns the propagation of sounds between the exterior and a room or between two rooms. This is not to be confused with acoustic correction which concerns the propagation of the sounds within the same room.

Standardized acoustic insulation DnT,A in dB (A) weighted on the emission of an aerial noise between two spacesThe insulation between two spaces expressed in dB allows acoustic insulation to aerial noise from a pink noise emission to be given as one value.

Standardized acoustic insulation DnT,A,tR expressed in dB (A), weighted against noise from exterior spaces,The standardized insulation of a room against noises from exterior spaces, expressed in dB allows acoustic insulation toaerial noise from a traffic noise emission to be given as one value.Din the same way, standardized acoustic insulation between two rooms DnAT is deducted from the DnT value obtainedthrough frequency bands.To verify the acoustic quality of accommodation, LpE and LpR are measured according to the norm NF S 31-057.

Source roomAcoustic regulations fix the minimum levels of acoustic insulation between rooms. Here, the source room correspondsto the room where the sound source is placed during the acoustic verification of accommodation.

Receiving roomAcoustic regulations fix the minimum levels of acoustic insulation between rooms. Here, the receiving room where the sound is received during the acoustic verification of accommodation, the sound source being in the “source room”.

Standardized level of Acoustic Pressure, LnATTo quantify the level of noise received in a room (noises of equipment, impact…). In acoustic regulations LnAT

takes the weighting A into consideration and the reverberation time in the received room.

Standardized impact machineTo verify the insulation from impact noises, a machine corresponding to the norm NF S 31-052. The specificationsdepend on the characteristics and operating methods of the machine.

OctavesInterval between two frequencies (f1, f2).So that f1/f2 = 2

Surface area of communal areasThis is the area deducted by projection on the horizontal plane.

pink noise

dB

Hz250125 500 1000 2000 4000

dB

125 250 500 1000 2000 4000 Hz

traffic noise

630

- 3- 6- 9

Octave125 250 500 1000 2000 4000 Hz

Deep Medium High

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124

editionN°6 2005

SYNOPTIC DIAGRAM OF THE ACOUSTIC FAÇADE RANGE

DIMENSIONS MODULE U. WEIGHT PRODUCT PRODUCT H x L x th H x L kg FINISHES COLOURSDESIGN mm mm mm

Red-orange - Pearl greyPhoniceram® 300 x 300 x 15 305 x 305 2.40 smoothPink - Chocolate brownand Phoniceram dB® 300 x 605 x 15 305 x 610 4.80

Champagne - Ebony

Red-orange - Pearl greyPhonbric® 400 x 605 x 70 410 x 610 14.80 smooth

Pink - Chocolate brown400 x 900 x 70 410 x 905 22.00Champagne - Ebony

1540 to 1550Red anaranjado - Pearl greyAcoustic 200 x 1520* x 70 x 210 23.90 smooth

Pink - Chocolate brownshingle 300 x 1520 x 70 x 310 35.80Champagne - Ebony

140 x 270 x 70 2.85Acoustic 140 x 300 x 70 - 3.20

smoothRed - Tavel pink

brick 150 x 300 x 120 4.95 Ochre - Tobacco - Brown200 x 300 x 120 6.60

inner surface 2600 x 600 x 200 200 smooth Red-orangeAMB 2800 x 600 x 200 600 215 outer surface

grooved

* 1520 is the maximal length of the productFor other lengths , please contact us

Red

Red-

oran

ge

Tave

l pin

k

Rosa

Ochr

e

Cham

pagn

e

Pear

l gre

y

Toba

cco

Brow

n

Choc

olat

e br

own

Ebon

y

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125

> A l l t h e t e r ra c o t t a f a ç a d e s o l u t i o n s www.terrealfacade.com

SINGLE SKINNED / RANGE HORIZONTAL DOUBLE SKINNED EXAMPLE OF FINITION

JOINTS PRODUCT

Acoustic Façade open Single-skinned

Acoustic Façade open Double-skinned

ey Acoustic Façade open Double-skinned

Acoustic -Façade Double-skinned

Acoustic Façade

- Double-skinned

GT FAC ANGL 21/03/05 14:36 Page 125

Product

Phoniceram®vertical perf.

Phoniceram®horizontal perf.

Phoniceram® dBvertical perf.

300 x 300 x 15300 x 605 x 15

300 x 300 x 15300 x 605 x 15

300 x 300 x 15300 x 605 x 15

Dimensions (mm)H x L x th

ProductCode

PHCV01PHCV02

PHCH01PHCH02

PHDV01PHDV02

Module(mm)

305 x 305305 x 610

305 x 305305 x 610

305 x 305305 x 610

Phoniceram® dBhorizontal perf.

300 x 300 x 15300 x 605 x 15

PHDH01PHDH02

305 x 305305 x 610

Aluminium rail 40 x 3000 x 20 AC30

Quantityof products

10,8/m2

5,4/m2

10,8/m2

5,4/m2

10,8/m2

5,4/m2

10,8/m2

5,4/m2

3,5 lm/m2

U. weight(kg)

2,44,8

2,44,8

2,44,8

2,44,8

1,5

Weightper m2

(kg)

2626

2626

2626

2626

1,75 305

Extra-large rail 53 x 3000 x 20 AC40 3,5 lm/m2 1,9 2,21 316

126

acoustic façades / technical handbook

edition N°6 2005

D E S C R I P T I O N

Wall cladding for acoustic correction for roads orinterior rooms. The tiles have two longitudinal lipson the reverse side for suspension on the rail.

P R O P E R T I E S

Phoniceram® and Phoniceram® dB terracottapanels and hanging rails are in conformity withthe Scientific and Technical Centre for Building(CSTB) Technical Approval n°. 2/02-971 forinstallation on secondary frame. The productsalso conform to NF P 13.304 and EN ISO 539.2Method C (frost resistance) standards. The installation system allows easy replacementof tiles in the event of breakage.Fixing Phoniceram® and Phoniceram® dB is madewith an aluminium Terreal rail upon which thetiles are hung.

• Phoniceram® The terracotta perforated panels are suspended on aluminium rails which are attached to anintermediary framework that has a space filled with mineral wool that acts as a sound trap. Used internally, the system performs both thermaland acoustical functions.

• Phoniceram® dB The terracotta panels are supplied with a blackPVC screen and mineral fibrous insulationattached, and this systemis hung on the aluminium rails.

PHONICERAM®

PHONICERAM® dB

H = height - L = length - th = thickness - R = angle returnTime required: 35 mn/m2 (for the main body of the work)These quantities were determined for horizontal and vertical joints of 0.5 cm.The units indicate area and surfaces of façade.The weight may vary according to the type of perforation to be used.

Nota: the 305 gauge is only for the installation with aluminium rail

The Phoniceram® is a single-skin cladding product with horizontal or verticalperforations, and fixed on horizontal rails. It is used for the acoustic correctionof noisy areas.It may be combined with Zephir® (cladding product)It is available in six colours.

Festivals Palace carpark, Cannes, France

Architect : Agence Millat

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A P P L I C A T I O N S

• Anti-noise wall: Phoniceram® and Phoniceram® dB enable anti-noise walls or noisy areas to be brought into conformity with the current regulations.

• Acoustic for rooms: (according to the New Acoustic Regulationdecrees applicable since January 1996, see“Acoustic Regulation” p.122 and 123).With Phoniceram® this system allows theconstruction of an acoustic complex R = 2,15 m2°C/W (Rockwool 381/652 thickness80 mm or Protisol by Eurocoustic)

I N S T A L L A T I O N

The installation must conform to the CSTBworksheet n°. 3316, dated February 2001 and the modification n°. 3422 (wooden frame),and n°. 3194 dated February 2000 (metallicframe).Horizontally positioned from the bottom to the top with a theoretical gauge of 30.5 cm(advised installation gauge indicated on thepallet), the rails are fixed to the frame-workrespecting a space of 1 to 2 cm between theends of the rails in the same row.The supporting upright of the rail and the tilescan be made in wood or metal, fixed to the wallby Isolco type staple (Etanco Ltd or similar).The staples support mounting of rail and must beplaced in a staggered pattern which is partedaccording to the wall’s resistance. The uprightsmust be fixed with a maximum space of 120 cmat the interior and 90 cm at the exterior.

PHONICERAM®

D i a g r a m 1

PHONICERAM® dB

D i a g r a m 2

300

40

40

30

220

300

14

300

40

605

40,1

40,1

31,4

31,4

31,4

31,4

31,4

31,4

31,4

54,046,827 54,054,0 46,8 46,8 2746,854,046,8 54,0 46,8

horizontal perforations Ø 14 mm

Phonicéram® 30 x 30with vertical perforations

Phonicéram® 30 x 60,5with horizontal perforations

vertical perforations Ø 14 mm

dimensions in mm

300

40

40

30

220

300

14

vertical perforations Ø 14 mm

Phonicéram® dB 30 x 30with vertical perforations

RAIL

D i a g r a m 3

811

27

22

36

maximum length 3m dimensions in mm

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128

edition N°6 2005

PHONICERAM®

PHONICERAM® dB

• For Phoniceram®: When the framework is installed (vertical andhorizontal adjustments thanks to brackets), thespaces are filled with an acoustic insulation,reference Rockwool 381-652 (thickness: 80 cm,density: 147 kg/m3) or Protisol by Eurocoustic.This insulator can be covered with a blackPVC screen (density: 70 gr/ m2). The thickness of the insulator must be equal to the thickness of the space to be filled so that the rail abuts the face of the insulation.The rail is fixed onto the frame with a woodscrew (for wooden frames) or a self-tappingscrew (for metal frames) with a theoreticalinteraxial distance of 305 mm (averagetheoretical gauge indicated on the pallet). (see diagrams 4,5 and 6)• For Phoniceram® dB:The rail is directly fixed to the wall with aninteraxial distance of 305 mm (averagetheoretical gauge indicated on the pallet). (see diagram 7).• In both cases:The tiles are then embedded and secured intoplace with a Sikaflex Pro 11 FC type sealantbetween the lower lips of the tiles and the upperwing of the rail. (see diagrams 5 and 7).

MAINTENANCE OF THE WORK

In spite of the high intrinsic resistance of thepanels of acoustic façades, in the event of anaccident , the pieces of a broken tile will not fall down; the upper part remain suspended, the lower part stuck to the rail.Even thought it is easy to replace independenttiles, it is impossible to remove an entire piece.• Technique of replacing a broken tile Having taken off the broken part, it is necessary to reduce the lower lip of the replacement tile to a thickness of about 4 mm, this way it is readyto be installed: it is then necessary to apply strip of mastic between the lower lip of the replacementtile and the upper wing of the rail.

PHONICERAM®:vert ica l sect ion

D i a g r a m 5

PHONICERAM®:hor izonta l sect ion

D i a g r a m 6

Phonicéram® 30 x 30

Phonicéram® 30 x 60,5

metal frameworkfixing bracket

rail

insulator Rockwool 381-652(d = 147 kg / m3)thickness 80 mm

2mm -+1 mm

5mm -1 mm+2 mm

300

5

3614 22

5

80

mastic of typeSikaflex

Pro 11 FC

J : operating clearance =

I : horizontal joint =

J

3005mm -+1,5 mm

metalframework

bracket ISOLCOverticality adjustmentpositionned alternalyon either side of the vertical member

vertical joint

rail maximum length = 3m

dimensions in mm

section interaxial distance = 900mm(indoors the interaxial distance for

fixings may be extended to 1200 mm)

Phonicéram® dB

theo

retic

al in

stal

latio

n gr

id 3

05(re

com

men

ded

expo

sure

indi

cate

d on

the

palle

t)wall plug accordingworksheet no. 1661

rockwool withblack PCV screen

dimensions in mm

rail

J

PHONICERAM®:insta l lat ion pr inc ip le

D i a g r a m 4

PHONICERAM® dB :vert ica l sect ion

D i a g r a m 7 dimensions in mm

GT FAC ANGL 21/03/05 14:36 Page 128

1,20

1,00

0,80

0,60

0,40

0,20

0,0

100

125

160

200

250

315

400

500

630

800

1000

1250

1600

2000

2500

3150

4000

5000

ALPH

A SA

BIN

E CO

EFFI

CIEN

T

ACOUSTIC CHARACTERISTICSALPHA SABINE ABSORPTION

NFS 31.003

Frequency Hz

Graph. 1

D E A L I N G W I T H I R R E G U L A R P O I N T S

Phoniceram® and Phoniceram® dB are cut easilywith a water cooled diamond disk circular saw.For vertical cuts (relative to positioning) the tilecan be cut down to 12 cm minimum. For horizontal cuts, the part that is cut must keep the upper lip which is necessary for fixationofthe product. Bracing is then made by the lowerpart of the tile wedged against the rail; thisbracing is finished with a linear mortar sealant,Sikaflex Pro 11 FC. It is preferable to ensure that the cut tiles are inlower part of the structure. In addition, we adviseto combine Phoniceram® and Zephir ® to limitthe cuts of acoustic products.

• Miscellaneous accessories (not supplied byTerreal)

> Metallic or PVC sections for the construction ofoverhangs and other various finishes..

> Miscellaneous hardware, wall plugs> Thermal insulation, mastic> Fixing brackets> Wooden and metallic frames

For further details on installation, see Zephir®.

129

www.terrealfacade.com

1,20

1,00

0,80

0,60

0,40

0,20

0,00

ACOUSTIC CHARACTERISTICSALPHA SABINE ABSORPTION (reverberating room)

EN 20.354

100

125

160

200

250

315

400

500

630

800

1000

1250

1600

2000

2500

3150

4000

5000

Frequency Hz

100

125

160

200

250

315

400

500

630

800

1000

1250

1600

2000

2500

3150

4000

5000

Graph. 2

ALP

HA

SABI

NE

COEF

FICI

ENT

ACOUSTIC PERFORMANCES: CSTB TEST n°AC 98-027 OF 98-03-11

PH O N I C E R A M®

ACOUSTIC PERFORMANCES: LGAI TEST n°20.003.507 OF 00-01-24

PH O N I C E R A M® dB

France Telecom offices, Paris, France

Architect : JP Fournier

horizontal perforations

�W = 0,55(LM)

�W = 0,50 (MH)

horizontal perforations

5000

ALPHA SABINE ValuesFrequency Hz

ALPHA S at 0°in dB per thirdof an octave

100

0,57

125

0,44

160

0,67

200

0,74

250

0,77

315

0,86

400

0,91

500

0,93

630

0,92

800

0,98

1000

0,90

1250

0,83

1600

0,68

2000

0,53

2500

0,42

3150

0,39

4000

0,39 0,44

Alpha L peroctave bandcalculated fol-lowing ISO11654

Frequency Hzper octaveband

0,56 0,79

125 250

0,92

500

0,91

1000

0,54

2000

0,41

4000

Frequency Hz

ALPHA S at 0°in dB per thirdof an octave

Alpha L peroctave bandcalculated fol-lowing ISO11654

Frequency Hzper octaveband

5000

ALPHA SABINE Values100

0,08

125

0,10

160

0,11

200

0,16

250

0,20

315

0,37

400

0,54

500

0,76

630

0,94

800

0,98

1000

1,00

1250

1,01

1600

0,89

2000

0,81

2500

0,75

3150

0,70

4000

0,67 0,82

0,097 0,243

125 250

0,746

500

0,997

1000

0,817

2000

0,730

4000

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edition N°6 2005

PHONBRIC®

D E S C R I P T I O N

Terracotta tile with absorbent acoustic filling,mechanically fixed to a wall or a frame by meansof an aluminium 4/6 rail (see diagrams 2 and 3).

P R O P E R T I E S

Perforated terracotta tile Phonbric® meets P 08.301 and 08.302 standardswith a Q3 performance. • Phonbric® also answers to NF P 13.304 and

EN ISO 539.2 Method C (frost) standards.• Phonbric® was subjected to tests for resistance

to stains, chemical agents and anti-graffititests.Moreover Phonbric® was also subjected to thefollowing specific tests:

> Mechanical resistance of the hanging lips.> Resistance to depression due to normal wind

superior to 1500 Pascals in admissible value.> Maintenance: easy replacement of the tiles in

the event of breakages.> EN 20.354 standards: “Characteristics and

measurement of the ALPHA SABINE absorptioncoefficient determined in reverberating room”.(see graph. 1).

> “NF S 31.089”: Measurement in situ of Alpha Lcoefficient at 0° and 30°. Impulsive method.

Mechanical Fixing Rails (see diagram 2)The 4/6 rails meet the specifications establishedwith our supplier, enabling us to guarantee thereliability of these products.The 4/6 rails were subjected to the followingspecific tests conducted in our laboratories:> Resistance to deformation due to vertical and

frontal loads.> Control and reception of the product (reports

of analysis).H = height - L = length - th = thicknessTime required: 40 min/m2 (for the main body of the work)(*) These quantities were determined for horizontal joints of 10 mm and vertical joints of 6 mm.The units indicate the surface area including joints.

The Phonbric® is a double-skin cladding product, fixed on horizontal rails. It isused for the acoustic correction of noisy areas.It may be combined with Boreal® (cladding product)It is available in six colours.

Product

Phonbric ® 400 x 605 x 70400 x 900 x 70

Dimensions (mm)H x L x th

ProductCode

PHB01PHB02

Module(mm)

405 x 610410 x 905

aluminium4/6 rail 65 x 3000 x 40 A30

Quantityof products

4/m2

2,7/m2

2,6 lm/m2

U. weight(kg)

14,822

4,7

Weightper m2

(kg)

59,2059,20

4,07 410

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A P P L I C A T I O N S

Absorbent acoustic covering product designed forthe construction of extend anti-noise screens andacoustic correction in interior environments(theatres, classrooms, swimming pools, etc.). (see Acoustic Regulation pages 122 and 123).Phonbric® is characterized by its excellent soundabsorption between 250 and 4000 Hz.This makes it extremely useful in a large numberof applications. (see graph. 1).Phonbric® and Boreal® use the same type offixing systems (identical metal 4/6 rail).This enables them to be combined harmoniously.This allows a reinforcement of the shockresistance in case of constructions in exposedareas.In renovation, Phonbric® enables antinoise wallsor noisy areas to be brought into conformity withthe current regulations.

I N S T A L L A T I O N

The installation methods must conform to Terrealspecifications.In new construction as in renovation, thePhonbric® system is fixed directly to a wall(concrete or masonry), or on a secondary framepermitting the adjustment of the verticality(application on wall form wall or retaining walls (see diagram 3).Phonbric® is secured with 2 points of Sikaflex Pro11 FC type mastic (contact applied between theupper portion of the 4/6 rail and the lower lip ofthe tile); this gives an anti-vibration effectagainst the effects of the wind, and maintains the lower parts of the tiles in case of an accident.In this way, the tiles cannot be removed byvandalism. However, the easiness of replacing broken tilesshould be noted: replacement of a tile anywhereon the façade without deterioration of thestructure. Phonbric® can be installed with aligned verticaljoints or staggered vertical joints.

PHONBRIC®

D i a g r a m 1

F IX ING PRINCIPLE

D i a g r a m 2

MAIN STRUCTURE DETAIL

D i a g r a m 3

15

400

23 x 25 = 575 15605 dimensions in mm

63

10

811

10 mm - 1 mm+ 2 mm

horizontal joint

dimensions in mm

1040

010

9454 40

10 mm - 1 mm+ 2 mm

mastic of typeSIKAFLEX Pro 11 FC

horizontal joint

dimensions in mm

lair

laye

r ven

tilat

ed b

y th

e ve

rtic

al

join

ts b

etw

een

the

slabs

theo

rical

inst

alla

tion

grid

410

screws where the headhas a flat underside

GT FAC ANGL 21/03/05 14:36 Page 131