slate - united kingdom · slate colour range 68 antique slate 63 heather** 69 tuscan* 09 light grey...

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Slate SLATE RANGE

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Page 1: Slate - United Kingdom · Slate colour range 68 Antique Slate 63 Heather** 69 Tuscan* 09 Light Grey 14 Dark Grey Balmoral, New Cassius®, New Rivius®, Calderdale and TLE colours

Slate

S L AT E R A N G E

Page 2: Slate - United Kingdom · Slate colour range 68 Antique Slate 63 Heather** 69 Tuscan* 09 Light Grey 14 Dark Grey Balmoral, New Cassius®, New Rivius®, Calderdale and TLE colours

32

Please note that some colours may not be available from stock and lead times could apply, please call Customer Support for more information.

Slight colour variations may occur as a consequence of the production process. It is therefore advisable not to mix tiles from different batches on the roof. To achieve the best effect, tiles should be taken from several pallets and mixed at random on the roof. *Made to order **Only available for New Rivius

Slate colour range

68 Antique Slate 63 Heather** 69 Tuscan*

09 Light Grey

14 Dark Grey

Balmoral, New Cassius®, New Rivius®, Calderdale and TLE colours

55 Graphite 53 Lakeland Green

BritSlate® and BritLock® Slate colours

Colour range · Slate

Slate

New Rivius® Antique Slate

Contents

Britlock Slate 4

Britslate® Duchess & Britslate® Countess Slate 6

Calderdale & Dual Calderdale Slate 8

TLE® & Dual TLE® 10

Balmoral® Slate 12

New Cassius® Slate 14

New Rivius® Slate 16

Customer Support Tel: 0844 9395 900 Fax: 0844 9395 950 Technical Services: 0844 9395 999 Email: [email protected]

Page 3: Slate - United Kingdom · Slate colour range 68 Antique Slate 63 Heather** 69 Tuscan* 09 Light Grey 14 Dark Grey Balmoral, New Cassius®, New Rivius®, Calderdale and TLE colours

4 5

BritLock® Slate

The BritLock® Slate is made from 80% recycled natural slate, sourced from within the UK. The interlocking lightweight design saves energy in production, transportation and installation.

Technical Data

Minimum roof pitch* 17.5°† at 120 mm headlap 22.5° at 75 mm headlap Headlap (minimum) 75 mmHeadlap (maximum) 120 mmBatten spacing at max. gauge 285 mmBatten spacing at min. gauge 240 mm Size of slate 360 x 340 mmCovering capacity 13.9 slates per m2 at 120 mm headlap 11.7 slates per m2 at 75 mm headlapCover width 300 mmProfile depth 11 mmHanging length 354 mmQuantity per crate 500 Battens per m2 4.2 m at 120 mm headlap 3.5 m at 75 mm headlap Batten size Up to 450 mm rafter centres 38 x 25 mm Up to 600 mm rafter centres 50 x 25 mmNail size/type for slates 38 x 2.95 mm aluminium ring shank clout head nail Unless otherwise stated, data is based on tiles laid at minimum headlap.

†For projects where the rafters are below 22.5º the roof substructure must be installed in accordance with our Low Pitch Installation Guide available at www.wienerberger.co.uk. Concealed tile ventilators must not be used on roof pitches below 22.5º. A low pitch version is available. Please contact Technical Services for further information. Rafter length restrictions apply at minimum roof pitch.

Please go to www.roofspec.co.uk to generate your own quantity estimate and roof specification.

Colours

55 Graphite

■ Made from 80% recycled slate waste

■ Quicker and easier to install than natural slate

■ Reduces completion times by up to 30%

■ Significant weight saving over natural slate

■ Requires fewer battens on the roof ■ No holing or sorting needed ■ Weathers like natural slate

53Lakeland Green*

*Lead times may apply

BritLock Slate Certificate No. 97/3351

80% recycledUK slate

roofspec® quantspec® fixspec®

Slate

Fittings and accessories

Slate fittings: - LH verge slate - Half slates (LH & RH verge)

Ridges: - Duracoat legged angle - Duracoat half round - Clay half round

Mono ridges: - Duracoat legged angle - Duracoat half round - Clay half round

Hips: - Duracoat legged angle - Duracoat segmental - Clay third round

Valleys: - Lead - Fibreglass

Clips: - Slate - Eaves - Verge/Valley For clay and Duracoat ridges see page 116, for fittings and accessories see page 126

Roofing systems

Dry roof systems: - Ridge - Hip - Verge - Valley

Ventilation - Ridgesystems: - Eaves - Top abutment - Slate vent†

See page 128

A lightweight fully interlocking slate with a riven surface and thin leading edge. The single lap design offers savings through faster and easier fixing and reduced roof loadings.

Britlock® Slate Graphite

Customer Support Tel: 0844 9395 900 Fax: 0844 9395 950 Technical Services: 0844 9395 999 Email: [email protected]

Page 4: Slate - United Kingdom · Slate colour range 68 Antique Slate 63 Heather** 69 Tuscan* 09 Light Grey 14 Dark Grey Balmoral, New Cassius®, New Rivius®, Calderdale and TLE colours

6 7

BritSlate® Duchess &BritSlate® Countess SlateThe BritSlate is made from recycled natural British slate, pulverised and re-formed in two traditional slate sizes with a riven appearance and dressed edges.

Technical Data BritSlate Duchess BritSlate CountessMinimum roof pitch* †20° 22.5°Size of slate 610 x 305 mm 510 x 255 mmCover width 305 mm 255 mmProfile depth 6 mm 6 mmQuantity per crate 750 1000 Batten size – up to 600 mm 50 x 25 mm 50 x 25 mmrafter centresNail size/type for slates 38 x 2.95 mm ring shank clout head

Colours

55 Graphite

53Lakeland Green*

*Lead times may apply.

80% recycledUK slate

Moderate exposureRafter pitch 20°† 22.5°† 25° 30° 35° 40° 45° 69°Headlap (minimum) Duchess 130 115 90 75 75 65 65 –Countess – 115 90 75 75 65 65 65 Coverage (m2) Duchess 13.7 13.3 12.6 12.3 12.3 12.1 12.1 –Countess – 19.9 18.7 18.1 18.1 17.7 17.7 17.7Batten gauge (mm) Duchess 240 247 260 267 267 272 272 –Countess – 197 210 217 217 222 222 222Battens per m2 Duchess (m) 4.16 4.05 3.84 3.74 3.68 3.68 – –Countess (m) – 5.08 4.76 4.61 4.65 4.5 4.5 4.5

Severe exposureRafter pitch †20° †22.5° 25° 30° 35° 40° 45° 69°Headlap (minimum) Duchess – 130 120 110 90 80 75 –Countess – – 115 100 90 75 75 75 Coverage (m2) Duchess – 13.7 13.4 13.1 12.6 12.4 12.3 –Countess – – 19.9 19.1 18.7 18.1 18.1 18.1Batten gauge (mm) Duchess – 240 245 250 260 265 267 –Countess – – 197 205 210 217 217 217Battens per m2 Duchess (m) – 4.16 4.08 4.00 3.84 3.77 3.74 –Countess (m) – – 5.08 4.88 4.76 4.61 4.61 4.61

Unless otherwise stated, data is based on tiles laid at minimum headlap.

†For projects where the rafters are below 22.5º the roof substructure must be installed in accordance with our Low Pitch Installation Guide available at www.wienerberger.co.uk. Concealed tile ventilators must not be used on roof pitches below 22.5º. A low pitch version is available. Please contact Technical Services for further information. Rafter length restrictions apply at minimum roof pitch.Please go to www.roofspec.co.uk to generate your own quantity estimate and roof specification.

roofspec® quantspec® fixspec®

Slate

Fittings and accessories

Slate fittings: - Slate-and-a-half slates - Double slates - Eaves slates - Tops slates

Ridges: - Duracoat legged angle - Concrete legged angle

Mono ridges: - Duracoat legged angle - Concrete legged angle

Hips: - Duracoat legged angle - Concrete legged angle

Valleys: - Lead - Fibreglass

Clips: - Slate hooks - Verge/Valley For clay and Duracoat ridges see page 116, for fittings and accessories see page 126

Roofing systems

Dry roof systems: - Ridge - Hip - Verge

Ventilation - Ridge systems: - Eaves - Top abutment - Slate vent†

See page 128

Britslate® Dutchess Graphite

Customer Support Tel: 0844 9395 900 Fax: 0844 9395 950 Technical Services: 0844 9395 999 Email: [email protected]

Page 5: Slate - United Kingdom · Slate colour range 68 Antique Slate 63 Heather** 69 Tuscan* 09 Light Grey 14 Dark Grey Balmoral, New Cassius®, New Rivius®, Calderdale and TLE colours

8 9

Calderdale & Dual CalderdaleLarge Format Tile

Calderdale gives a slate-like appearance and offers all the benefits of modern interlocking design.

Technical data – Calderdale and Dual Calderdale

Minimum roof pitch* 17.5°† at 100 mm headlap 22.5° at 75 mm headlapHeadlap (minimum) 75 mmHeadlap (maximum) 120 mmBatten spacing at max. gauge 345 mmBatten spacing at min. gauge 300 mm Size of slate 420 x 334 mmCovering capacity at max. gauge 10.6 slates per m2 at 100 mm headlap 9.9 slates per m2 at 75 mm headlapCover width 294 mmProfile depth 32 mmHanging length 399 mmQuantity per pallet 204 Battens per m2 3.1 m at 100 mm headlap 2.9 m at 75 mm headlapBatten sizeUp to 450 mm rafter centres 38 x 25 mmUp to 600 mm rafter centres 50 x 25 mmNail size/type for slates 50 x 3.35 mm aluminium ring shank clout head Nail size/type for slate clips 50 x 3.35 mm aluminium ring shank clout head

Unless otherwise stated, data is based on tiles laid at minimum headlap.

†For projects where the rafters are below 22.5º the roof substructure must be installed in accordance with our Low Pitch Installation Guide available at www.wienerberger.co.uk. Concealed tile ventilators must not be used on roof pitches below 22.5º. A low pitch version is available. Please contact Technical Services for further information. Rafter length restrictions apply at minimum roof pitch.

Please go to www.roofspec.co.uk to generate your own quantity estimate and roof specification.

Calderdale colours – Smoothfaced

Dual Calderdale colours – Smoothfaced

14 Dark Grey09 Light Grey

14 Dark Grey

Please note that some colours may not be available from stock and lead times could apply, please call customer support for more information.

roofspec® quantspec® fixspec®

Slate

ThinLeading

Edge

Fittings and accessories

Tile fittings: - LH verge tile* - Half tiles (LH & RH

verge)*

Ridges: - Legged angle

Mono ridges: - Legged angle

Hips: - Legged angle

Valleys: - Lead - Fibreglass

Clips: - Tile - Eaves - Verge

See pages 126

Roofing systems

Dry roof systems: - Ridge - Hip - Verge - Valley

Ventilation - Ridge systems: - Eaves - Top abutment - Tile vent†

See page 128*Not available for Dual Calderdale

Calderdale Dark Grey

Customer Support Tel: 0844 9395 900 Fax: 0844 9395 950 Technical Services: 0844 9395 999 Email: [email protected]

Page 6: Slate - United Kingdom · Slate colour range 68 Antique Slate 63 Heather** 69 Tuscan* 09 Light Grey 14 Dark Grey Balmoral, New Cassius®, New Rivius®, Calderdale and TLE colours

10 11

TLE® & Dual TLELarge Format Tile

TLE® is one of the thinnest leading edges on the market. It gives a slate-like appearance and offers all the benefits of a modern interlocking design.

Technical data – TLE® and Dual TLE®

Minimum roof pitch* 17.5°† at 100 mm headlap 22.5° at 75 mm headlapHeadlap (minimum) 75 mmHeadlap (maximum) 120 mmBatten spacing at max. gauge 345 mmBatten spacing at min. gauge 300 mm Size of slate 420 x 334 mmCovering capacity at max. gauge 10.2 slates per m2 at 100 mm headlap 9.5 slates per m2 at 75 mm headlapCover width 305 mmProfile depth 19 mmHanging length 399 mmQuantity per pallet 240 Battens per m2 3.1 m at 100 mm headlap 2.9 m at 75 mm headlapBatten sizeUp to 450 mm rafter centres 38 x 25 mmUp to 600 mm rafter centres 50 x 25 mmNail size/type for slates 50 x 3.35 mm aluminium ring shank clout head Nail size/type for metal slate clips 50 x 3.35 mm aluminium ring shank clout head

Unless otherwise stated, data is based on tiles laid at minimum headlap.

†For projects where the rafters are below 22.5º the roof substructure must be installed in accordance with our Low Pitch Installation Guide available at www.wienerberger.co.uk. Concealed tile ventilators must not be used on roof pitches below 22.5º. A low pitch version is available. Please contact Technical Services for further information. Rafter length restrictions apply at minimum roof pitch.

Please go to www.roofspec.co.uk to generate your own quantity estimate and roof specification. *Not available for Dual TLE

Colours - Smoothfaced

14 Dark Grey

roofspec® quantspec® fixspec®

Slate

ThinLeading

Edge

Fittings and accessories

Tile fittings: - LH verge tile*tiles (LH & RH) - Half tiles (LH & RH

verge)*

Ridges: - Legged angle

Mono ridges: - Legged angle

Hips: - Legged angle

Valleys: - Lead - Fibreglass

Clips: - Eaves - Verge - Tile

See pages 126

Roofing systems

Dry roof systems: - Ridge - Hip - Verge - Valley

Ventilation - Ridge systems: - Eaves - Top abutment - Tile Vent†

See page 128

TLE® Dark Grey

Customer Support Tel: 0844 9395 900 Fax: 0844 9395 950 Technical Services: 0844 9395 999 Email: [email protected]

Page 7: Slate - United Kingdom · Slate colour range 68 Antique Slate 63 Heather** 69 Tuscan* 09 Light Grey 14 Dark Grey Balmoral, New Cassius®, New Rivius®, Calderdale and TLE colours

12 13

Balmoral® SlateNew Generation interlocking clay slate with an authentic slate appearance thanks to a riven surface, dressed edges and colour permanent ceramic finish.

Technical Data

Minimum roof pitch 22.5° Headlap (minimum) 75 mmHeadlap (maximum) 120 mmBatten spacing at max. gauge 255 mmBatten spacing at min. gauge 210 mm Size of slate 330 x 226 mmCovering capacity at max. gauge 20.5 slates per m²Cover width 191 mmProfile depth 16 mmHanging length 300 mmQuantity per pallet 480 Battens per m² 3.9 m Batten sizeUp to 450 mm rafter centres 38 x 25 mmUp to 600 mm rafter centres 50 x 25 mm Nail size/type for slates 45 x 3.35 mm aluminium ring shank clout head Nail size/type for metal slate clips 55 x 3.35 mm aluminium ring shank clout head

Unless otherwise stated, data is based on tiles laid at minimum headlap.Please go to www.roofspec.co.uk to generate your own quantity estimate and roof specification.

Colours

68 Antique Slate

roofspec® quantspec® fixspec®

Slate

07 Sandown PT

Fittings and accessories

Slate fittings: - LH verge slate - Slate-and-a-half slates

(LH & RH verge)

Ridges: - Duracoat legged angle - Duracoat half round - Clay half round - Clay angle

Mono ridges: - Duracoat legged angle - Duracoat half round - Clay half round

Hips: - Duracoat legged angle - Duracoat segmental - Clay third round - Clay angle

Valleys: - Lead - Fibreglass

Clips: - Slate - Eaves - Verge For clay and Duracoat ridges see page 116, for fittings and accessories see page 126

Roofing systems

Dry roof systems: - Ridge - Hip - Verge - Valley

Ventilation - Ridgesystems: - Eaves - Top abutment - Slate vent

See page 128

Balmoral® Slate Antique Slate

Customer Support Tel: 0844 9395 900 Fax: 0844 9395 950 Technical Services: 0844 9395 999 Email: [email protected]

Page 8: Slate - United Kingdom · Slate colour range 68 Antique Slate 63 Heather** 69 Tuscan* 09 Light Grey 14 Dark Grey Balmoral, New Cassius®, New Rivius®, Calderdale and TLE colours

14 15

New Cassius®

Large Format Tile

New Cassius® is a thin leading edge tile that creates an attractive natural clay roof, while the large format size and interlocking design reduce material and installation costs.

Technical Data

Minimum roof pitch 22.5°Headlap (minimum) 75 mmHeadlap (maximum) 120 mmBatten spacing at max. gauge 343 mmBatten spacing at min. gauge 298 mmSize of slate 418 x 335 mmCovering capacity at max. gauge 9.5 tiles per m2

Cover width 307 mmProfile depth 16 mmHanging length 390 mmQuantity per pallet 240Battens per m2 2.9 mBatten size Up to 450 mm rafter centres 38 x 25 mm Up to 600 mm rafter centres 50 x 25 mmNail size/type for slates 45 x 3.35 mm aluminium ring shank clout headNail size/type for metal slate clips 55 x 3.35 mm aluminium ring shank clout head Unless otherwise stated, data is based on tiles laid at minimum headlap.Please go to www.roofspec.co.uk to generate your own quantity estimate and roof specification.

68 Antique Slate

Colours

■ New Generation interlocking clay tile with easy to lay open gauge

■ Over 50% more cost effective than traditional natural slate

■ Large format design means competitive with concrete thin leading edge products

■ Clean lines and well defined thin leading edge enhances aesthetics

■ Pressed from natural alluvial Humber clay

■ High performance weatherproof design developed through intensive wind tunnel testing

■ Manufactured to Environmental Management Standard ISO 14001

roofspec® quantspec® fixspec®

Slate

ThinLeading

Edge

NewGeneration

Fittings and accessories

Tile fittings: - LH verge tile - Half tiles (LH & RH verge)

Ridges: - Duracoat legged angle - Duracoat half round - Clay half round

Mono ridges: - Duracoat legged angle - Duracoat half round - Clay half round

Hips: - Duracoat legged angle - Duracoat segmental - Clay third round

Valleys: - Lead - Fibreglass

Clips: - Tile - Eaves - Verge See page 126

Roofing systems

Dry roof systems: - Ridge - Hip - Verge - Valley

Ventilation - Ridge systems: - Eaves - Top abutment - Tile vent

See page 128

An effective alternative to traditional slate products.

New Cassius® Antique Slate

Customer Support Tel: 0844 9395 900 Fax: 0844 9395 950 Technical Services: 0844 9395 999 Email: [email protected]

Page 9: Slate - United Kingdom · Slate colour range 68 Antique Slate 63 Heather** 69 Tuscan* 09 Light Grey 14 Dark Grey Balmoral, New Cassius®, New Rivius®, Calderdale and TLE colours

16 17

New Rivius®

Large Format Slate

Featuring a riven surface and dressed edges with a colour permanent ceramic finish, this large format interlocking slate offers significant cost savings over double lap slate products.

Technical Data

Minimum roof pitch 22.5° Headlap (minimum) 75 mmHeadlap (maximum) 120 mmBatten spacing at max. gauge 343 mmBatten spacing at min. gauge 298 mm Size of slate 418 x 335 mmCovering capacity at max. gauge 9.5 slates per m2

Cover width 307 mmProfile depth 16 mmHanging length 390 mmQuantity per pallet 240 Battens per m2 2.9 m Batten size Up to 450 mm rafter centres 38 x 25 mm Up to 600 mm rafter centres 50 x 25 mm Nail size/type for slates 45 x 3.35 mm aluminium ring shank clout head Nail size/type for metal slate clips 55 x 3.35 mm aluminium ring shank clout head

Unless otherwise stated, data is based on tiles laid at minimum headlap.

Please go to www.roofspec.co.uk to generate your own quantity estimate and roof specification.

Colours

68 Antique Slate

■ New Generation interlocking clay slate with easy to lay open gauge

■ Around 50% more cost effective than natural slate

■ Large format interlocking design saves material and installation costs

■ Riven surface and dressed edges enhance slate appearance

■ Pressed from natural alluvial Humber clay and available in colour permanent

■ High performance weatherproof design developed through intensive wind tunnel testing

■ Manufactured to Environmental Management Standard ISO 14001

63Heather

roofspec® quantspec® fixspec®

Slate

NewGeneration

07 Sandown PT

Fittings and accessories

Slate fittings: - LH verge slate - Half slates (LH & RH verge)

Ridges: - Duracoat legged angle - Duracoat half round - Clay half round

Mono ridges: - Duracoat legged angle - Duracoat half round - Clay half round

Hips: - Duracoat legged angle - Duracoat segmental - Clay third round

Valleys: - Lead - Fibreglass

Clips: - Slate - Eaves - Verge

For clay and Duracoat ridges see page 116, for fittings and accessories see page 126.

Roofing systems

Dry roof systems: - Ridge - Hip - Verge - Valley

Ventilation - Ridgesystems: - Eaves - Top abutment - Slate vent

See page 128.

New Rivius® Antique Slate

Customer Support Tel: 0844 9395 900 Fax: 0844 9395 950 Technical Services: 0844 9395 999 Email: [email protected]

Page 10: Slate - United Kingdom · Slate colour range 68 Antique Slate 63 Heather** 69 Tuscan* 09 Light Grey 14 Dark Grey Balmoral, New Cassius®, New Rivius®, Calderdale and TLE colours

18 19

Fittings & Accessories · Slate Fittings & Accessories · Slate

Customer Support Tel: 0844 9395 900 Fax: 0844 9395 950 Technical Services: 0844 9395 999 Email: [email protected]

Slate Fittings

Slate Slate and Half Double Slate Eaves/Tops Slate

BritSlate Duchess

BritSlate Countess

457

610

382

305

610

610

Slate-and-a-halfDouble slate

457

610

382

305

610

610

Slate-and-a-halfDouble slate

457

610

382

305

610

610

Slate-and-a-halfDouble slate

457

610

382

305

610

610

Slate-and-a-halfDouble slate

382

510

255

305

510

510

Slate-and-a-halfDouble slate

382

510

255

305

510

510

Slate-and-a-halfDouble slate

(Supplied length dependant on gauge)

(Supplied length dependant on gauge)

Slate LH verge slate LH verge half slate/slate-and-a-half RH verge half slate/slate-and-a-half

Balmoral

New Cassius and New Rivius

BritLock

Calderdale, TLE

Tile - and - a - half

Left hand verge

Left hand verge tile - and - a - half

330

330

321

330

286

191

Tile - and - a - half

Left hand verge

Left hand verge tile - and - a - half

330

330

321

330

286

191

Tile - and - a - half

Left hand verge

Left hand verge tile - and - a - half

330

330

321

330

286

191

Right hand verge half tileLeft hand verge half tileLeft hand verge tileComponents

418

418

418418 418

307

307

154

154

418

182

182

Right hand verge half tileLeft hand verge half tileLeft hand verge tileComponents

418

418

418418 418

307

307

154

154

418

182

182

Right hand verge half tileLeft hand verge half tileLeft hand verge tileComponents

418

418

418418 418

307

307

154

154

418

182

182

490

360300

360

640

360

450

360490

360300

360

640

360

450

360

490

360300

360

640

360

450

360

BritLock double slate is also available Slate-and-a-half Slate-and-a-half

Please note not all fittings, in all colours are available from stock. Please contact Customer Support for further information.For ridge ventilators see page 128

Sold as a pair (LH and RH) Sold as a pair (LH and RH)

420

TLE: 300Calderdale: 294

420 420

167

LH verge tile LH half tile RH half tile

TLE: 150Calderdale: 147

420

TLE: 300Calderdale: 294

420 420

167

LH verge tile LH half tile RH half tile

TLE: 150Calderdale: 147

420

TLE: 300Calderdale: 294

420 420

167

LH verge tile LH half tile RH half tile

TLE: 150Calderdale: 147

Slate Fittings

400

3000

GRP valley unitsCode: UFGVT

Hip iron

cassius

olympus

Ridge clips

20/20

20/20

Slate Slate Clip Verge Clip Eaves Clip

Balmoral, New Rivius New Cassius, Calderdale, Dual Calderdale, TLE and Dual TLE

BritLock Not required

Verge/valley clip

Not required

BritSlate

Slate hook Verge/valley clip

Not required

75 mm, 100 mm and 120 mm available

Nail size 20 x 3.35 mm

Nail size 20 x 3.35 mm

Nail size 20 x 3.35 mm

1 Nail size 20 x 3.35 mm

400

3000

GRP valley unitsCode: UFGVT

Hip iron

cassius

olympus

Ridge clips

20/20

20/20

400

3000

GRP valley unitsCode: UFGVT

Hip iron

cassius

olympus

Ridge clips

20/20

20/20

400

3000

GRP valley unitsCode: UFGVT

Hip iron

cassius

olympus

Ridge clips

20/20

20/20

400

3000

GRP valley unitsCode: UFGVT

Hip iron

cassius

olympus

Ridge clips

20/20

20/20

For Clay ridges see page 116, for Concrete ridges see page 122

Nail type: aluminium clout head1 When used in conjunction with Over Fascia Ventilator Strip, nail length should be increased to 40 mm for 10 mm Over Fascia Ventilator Strip, or 50 mm for 25 mm Over Fascia Ventilator Strip.