2442568 PDF Plc Roofing Guide

Welcome to the Jewson Roofing Guide. At Jewson we are serious about roofing and have worked hardwith trade professionals to deliver a service that we believe is among the best you’ll find anywhere.This guide brings together a wide range of roofing products from all the key brands, so whatever youneed, you’ll find it at Jewson.

Jewson provides a fast, reliable service and our prices are always competitive. Just ask our highly-trained team and they will provide you with all the expert help and advice you will need.

We have also developed dedicated Jewson Roofing Centres that provide an extended product range anda more specialist service. For details of your nearest Jewson Roofing Centre, please call 0800 539766.

WELCOME

3

FROM THE UK’S LEADING SUPPLIER OF TIMBER AND BUILDING MATERIALSWith over 450 branches across the country, Jewson is the UK’s leading supplier of timber and buildingproducts to the trade. We have been in the business for over 160 years and have built an excellentreputation among professional tradesmen.

At Jewson you’ll find a huge range of products – from everyday core essentials through to the latest product innovations from leading suppliers – all brought to you at great value prices by ourknowledgeable team of staff. We are fully committed to providing an excellent service to our trade customers.

WHY CHOOSE JEWSON? 4

ROOF TRUSSES 5

TILE COMPARISON CHART 6

TILE COLOUR SWATCHES 8

CONCRETE TILES 10

CLAY TILES 22

CLAY RIDGE TILES 26

FIBRE CEMENT SLATE TILES 27

NATURAL SLATE TILES 28

PITCHED ROOFING ACCESSORIES 30

PITCHED ROOFING FELTS 31

VENTILATION 32

ROOF WINDOWS 36

ROOF DOMES AND SUN TUBES 38

FLAT ROOF WATERPROOFING 39

ROOFING SHEET MATERIALS 42

BATTENS 43

VENTILATION COWLS AND TERMINALS 44

ROOF SHEETS 45

ROOF INSULATION 46

LEAD FLASHING 47

ROOFING TOOLS 48

ESTIMATING GUIDE 50

PITCHED ROOFING INDICATOR 55

2

CONTENTS

WORKING IN PARTNERSHIP WITH THE UK’S PREMIER ROOF TRUSS MANUFACTURERWorking closely with the UK’s leading roof truss manufacturer, Jewson offers tailored solutions to suitalmost any roof shape – from matching new to existing roofs, gable-to-gable, attics, raised collars orscissor-profiled roof trusses.

Chain of Custody timber is available from over 100 branches so you can be sure your timber hasbeen farmed in an environmentally responsible way. Roof trusses with PEFC certification can also beprovided through one of the many Jewson branches offering Chain of Custody timber.

Ordering your bespoke roof trusses couldn’t be easier. Simply visit your local Jewson Roofing Centrewith the following measurements: Span ’a’ (m), Pitch ‘b’ (X°), Height ‘c’ (mm), Overhang ‘d’ (mm).You will also need to bring details of the site’s location and tell us whether it is accessible toarticulated vehicles – then Jewson will do the rest.

Any one of our branches can provide a full and highly professional roof truss service. They can deliver everything you need to your site, all designed to meet your exact specifications.

Our superb service is supported by a network of quality truss manufacturers and leading producers of prefabricated truss rafters.

ROOF TRUSSES

54

Jewson’s offers the ultimate roofing service that includes a comprehensive range of products from allthe industry’s leading names, backed up by a team of experts that can offer all the specialist adviceyou could ever need.

WHY CHOOSE JEWSON?

• Large stocks from Lafarge Redland Roof Tiles, Marley, Eternit, Sandtoft and Cemex Russell Roof Tiles

• Wide choice of concrete or clay, large or small profiled tiles

• Fibre-cement slates available from Eternit and Cembrit Blunn

• Full range of natural slates, Welsh, Spanish, Brazilian & Chinese

• We also offer a range of products from Spanish Slate Quarries, Independent Slate Supplies and Cembrit Blunn

The main data section has all the technical information you will need onour range of tiles. Use this in conjunction with the handy estimating tool at the back of the guide to quickly and easily work out the quantity ofmaterials you need to get the job done.

We also cover all the essential accessories and fittings you will need tocomplete your roofing project.

If you need any specialist advice our trained experts will be on hand at our dedicated Jewson Roofing Centres. Alternatively, please contact themanufacturer’s helpline, shown below:

USING THIS GUIDE

Cembrit Blunn 020 8301 8900DuPont Tyvek 01275 879770Icopal 0161 865 4444Independent Slate Supplies 01752 848080Klober 01509 500660Lafarge Roofing 08705 601000Marley Eternit 0870 562 6400Marley Waterproofing 01304 843300Sandtoft 01427 871200SSQ 020 8961 7725Timloc 01405 764467Velux 01592 772211

SANDTOFTTYPE RUSSELLINTERLOCKING PROFILE (CONCRETE)

INTERLOCKING SLATE

PLAIN CLAY

PLAIN CLAY HANDMADE

PROFILED CLAY

PLAIN CONCRETE

SLATE

The comparison chart below will allow you to identify equivalent products from the leading tile manufacturers.*

*The equivalent tile profile chart is prepared on the basis of what the market place would accept as the nearest equivalent tile profile by manufacturer. Jewson cannot accept responsibility that these tiles are exact in either full technical or fixing detail. 7

6

TILE COMPARISON CHART

LAFARGE REDLANDTYPE MARLEYINTERLOCKING PROFILE (CONCRETE)

INTERLOCKING SLATE

PLAIN CLAY

PLAIN CLAY HANDMADE

PROFILED CLAY

PLAIN CONCRETE

SLATE

No Equivalent Malvern No Equivalent No EquivalentRedland 49 Tile Ludlow Plus Standard Pattern No EquivalentNorfolk Pantile Anglia Plus Shire Pantile No EquivalentRenown Ludlow Major Lindum CheviotGrovebury Mendip Double Pantile Pennine50 Double Roman Double Roman Double Roman Double RomanRegent Bold Roll Bold Roll DerwentLandmark Double Pantile No Equivalent No Equivalent No Equivalent

MockBond Mini Stonewold Duo Modern No Equivalent HighlandRichmond Edgemere No Equivalent GallowayMini Stonewold Modern Calderdale GrampianCambrian Melbourn Britlock No EquivalentNo Equivalent Wessex No Equivalent AygyllLandmark Slate No Equivalent Balmoral Clay Slate No EquivalentSaxon Marquess No Equivalent No EquivalentStonewold II No Equivalent No Equivalent No EquivalentNo Equivalent Dalestone Pennine Slate No EquivalentNo Equivalent Duo Marquess No Equivalent No EquivalentSaxon Monarch No Equivalent No Equivalent

Rosemary Classic Acme Humber Plain Tile No EquivalentNo Equivalent No Equivalent 20/20 Interlocking No EquivalentRosemary Craftsmen Ashdowne Goxhill No Equivalent

No Equivalent No Equivalent Goxhill Plain Tile No Equivalent

Cathedral Clay Pantile Sandringham County Pantile No EquivalentNo Equivalent No Equivalent Arcadia Pantile No EquivalentNo Equivalent No Equivalent Old English Pantile No EquivalentNo Equivalent No Equivalent Greenwood Pantile No EquivalentNo Equivalent No Equivalent Gaelic Tile No EquivalentNo Equivalent Hawkins No Equivalent No Equivalent

Plain Tile Plain Plain PlainDownland Thaxden No Equivalent No EquivalentHeathland Marlden No Equivalent No EquivalentPlain Tile Heritage No Equivalent No EquivalentDuoPlain Ashmore Gemini Lothian

No Equivalent No Equivalent Britslate No Equivalent

Brown Breckland Black Red Medium Mixed Brindle

98

The colour chart below shows a selection of the main tile colours from the leading manufacturers.

Acorn Brown

TILE COLOUR SWATCHES

Anthracite Dark Red Greystone Old English Dark Red Smooth Brown Smooth Grey Smooth Red

Cambrian Slate Grey Breckland Brown Hedgerow Brown Farmhouse Red

Antique 2 Mottled Red Cornish Grey Light Grey Dark Grey Brown Terracotta Red Rustic

1110 11

CONCRETE TILES

LAFARGE REDLAND INTERLOCKING CONCRETE PROFILE

LANDMARK DOUBLE PANTILE

Lafarge Roofing draws on the expertise and experience of over 80 years as anindustry leader. They offer the Redland range of tiles, slates, fittings and accessoriescombined with market-leading technical support services.

CONCRETE TILES

LAFARGE REDLAND INTERLOCKING RECONSTITUTED SLATE

All the above tiles can be laid at a lower roof pitch by increasing the headlap. Please consult your local branch.

Colour options: Brown, Antique Red, Slate Grey, Terracotta, Tudor Brown, Farmhouse Red, Breckland Brown, Rustic Red

Colour options: Heather, Langdale Green, Slate Grey. *Can be laid at a lower roof pitch by increasing the headlap. Please consult your local branch.

Colour options: Brecon Grey, Snowdon Grey, Terracotta Brindle

Colour options: Slate Blue, Welsh Blue, Highland Black

Colour options: Slate Grey, Terracotta, Tudor Brown, Farmhouse Red, Breckland Brown, Breckland Black

Colour options: Rich Terracotta, Terracotta Brindle, Brown Brindle

Colour options: Brown, Antique Red, Slate Grey, Terracotta, Tudor Brown, Farmhouse Red, Breckland Brown, Breckland Black

Colour options: Brown, Antique Red, Cotswold, Slate Grey, Terracotta, Tudor Brown, Farmhouse Red, Breckland Brown, Breckland Black, Rustic Red

Colour options: Brown, Antique Red, Slate Grey, Terracotta, Tudor Brown, Farmhouse Red, Breckland Brown, Breckland Black, Rustic Red

Colour options: Brown, Antique Red, Cotswold, Slate Grey, Terracotta, Tudor Brown, Farmhouse Red, Breckland Brown, Rustic Red

Type

n/a

17.5º at 75mm headlap

343mm

300

418 x 332

9.7 2.92

Min. PitchMax. Gauge

Tiles per m2

(at max. gauge)LM batten per m2

(max. gauge)Cover Width (mm)Overall Size (mm)

GROVEBURYType

Through-coloured

Granular


343mm

30º at 75mm headlap

343mm

300

418 x 332

300

418 x 332

9.7

9.7

2.92


Tiles per m2



50 DOUBLE ROMANType

Through-coloured

Granular


343mm


348mm

300

418 x 330

300

418 x 330

9.7

9.7

2.92


Tiles per m2



REGENTType

Through-coloured

Granular


343mm


343mm

300

418 x 332

300

418 x 332

9.7

9.7

2.92


Tiles per m2



RENOWNType

Through-coloured

Granular


343mm


343mm

300

418 x 330

300

418 x 330

9.7

9.7

2.92


Tiles per m2



LAFARGE REDLAND INTERLOCKING CONCRETE PROFILE

49 TILEType

Through-coloured

Granular


307mm


307mm

200

382 x 226

200

382 x 226

16.3

16.3

3.26


Tiles per m2



NORFOLK PANTILEType

n/a


306mm

200

381 x 227

16.3 3.26


Tiles per m2



CAMBRIAN SLATEType

n/a

25º at 50mm headlap*

250mm

300

300 x 336

13.3 4


Tiles per m2



LANDMARK SLATEType

n/a


300mm

300

412 x 334

11.1 3.33


Tiles per m2



SAXONType

n/a


300mm

300

412 x 332

11.1 3.33


Tiles per m2



LAFARGE REDLAND INTERLOCKING CONCRETE SLATE PROFILE

1313

CONCRETE TILES

LAFARGE REDLAND CONCRETE PLAIN

12

CONCRETE TILES

LAFARGE REDLAND INTERLOCKING CONCRETE SLATE

RICHMOND

Colour options: Slate Grey, Farmhouse Red, Breckland Brown

Type

n/a


300mm

300

412 x 332

11.1 3.33


Tiles per m2



HEATHLAND

Colour options: Autumn, Sunset, Ember

Type

n/a

35º

100mm

165

265 x 165

60 10


Tiles per m2



DOWNLAND

Colour options: Hedgerow Brown, Manor House Mix, Woodland Brown

Type

n/a

35º

100mm

165

265 x 165

60 10


Tiles per m2



PLAIN TILE

Colour options: Brown, Breckland Black, Breckland Brown, Antique Red, Cotswold, Slate Grey, Terracotta, Tudor Brown,Farmhouse Red, Rustic Red

Type

n/a

35º

100mm

165

268 x 165

60 10


Tiles per m2



DUOPLAIN

Colour options: Flame Red, Rustic Brown, Charcoal Grey, Rustic Red, Tuscan Red

Type

n/a

25º

188mm

300

268 x 330

17.7 5.26


Tiles per m2



STONEWOLD II

Colour options: Slate Grey, Terracotta, Tudor Brown

Type

n/a


355mm

343

430 x 380

8.2 2.82


Tiles per m2



MINI STONEWOLD

Colour options: Slate Grey, Terracotta, Tudor Brown, Farmhouse Red, Breckland Brown, Breckland Black* Can be laid at a lower roof pitch by increasing the headlap. Please consult your local branch.

Type

n/a

22.5º at 75mm headlap*

343mm

294

418 x 334

9.9 2.92


Tiles per m2



MOCKBOND MINI STONEWOLD

Colour options: Slate Grey, Terracotta, Tudor Brown, Farmhouse Red, Breckland Brown, Breckland Black* Can be laid at a lower roof pitch by increasing the headlap. Please consult your local branch.

Type

n/a

22.5º at 75mm headlap*

343mm

294

418 x 334

9.9 2.92


Tiles per m2



1515

CONCRETE TILES

MARLEY ETERNIT INTERLOCKING CONCRETE PROFILE

14

CONCRETE TILES


Marley Roofing’s extensive range of tile and slate profiles have beensuccessfully enhancing and protecting roofs for over 80 years.

Colour options: Antique Brown, Greystone, Dark Red, Smooth Grey, Mosborough Red, Smooth Brown, Old English Dark Red

LUDLOW PLUSType

Granular

Smooth


312mm


312mm

204

387 x 229

204

387 x 229

15.7

17.1

3.2

3.5


Tiles per m2



Colour options: Antique Brown, Greystone, Dark Red, Smooth Grey, Mosborough Red, Smooth Brown, Old English Dark Red, Smooth Red,Acorn Brown, Rustic Grey, Old English Orange, Chiltern Brown

DOUBLE ROMANType

Granular

Smooth


345mm


345mm

300

420 x 330

300

420 x 330

9.7

10.4

2.9

3.1


Tiles per m2



Colour options: Antique Brown, Smooth Grey, Mosborough Red, Smooth Brown, Old English Dark Red, Smooth Red, Acorn Brown, Anthracite, Rustic Grey

MODERNType

Granular

Smooth


345mm


345mm

292

420 x 330

292

420 x 330

10.7

10.7

3.1


Tiles per m2



Colour options: Antique Brown, Greystone, Dark Red, Heritage Burnt Red, Smooth Red, Rustic Black, Smooth Grey, Anthracite, Mosborough Red, Acorn Brown, Smooth Brown, Old English Orange, Old English Dark Red

ANGLIA PLUSType

Granular

Smooth


312mm


312mm

204

387 x 230

204

387 x 230

15.7

17.1

3.2

3.5


Tiles per m2



Colour options: Antique Brown, Greystone, Dark Red, Smooth Grey, Mosborough Red, Smooth Brown, Old English Dark Red

LUDLOW MAJORType

Granular

Smooth


345mm


345mm

295

420 x 330

295

420 x 330

9.8

10.6

2.9

3.1


Tiles per m2



Colour options: Antique Brown, Brindle Weald, Dark Red, Smooth Grey, Mosborough Red, Smooth Brown, Old English Dark Red, Smooth Red,Anthracite, Pewter Red, Acorn Brown, Rustic Grey, Old English Orange, Burnt Red

MENDIPType

Granular

Smooth


345mm


345mm

298

420 x 330

298

420 x 330

9.7

10.5

2.9

3.1


Tiles per m2



MALVERN

Colour options: Old English Dark Red, Smooth Brown, Smooth Grey, Smooth Red

Type

Smooth Faced15º at 100mm headlap

320mm

296

420 x 33010.6 3.1


Tiles per m2



BOLD ROLL

Colour options: Smooth Grey, Mosborough Red, Smooth Brown, Old English Dark Red, Smooth Red, Acorn Brown

Type

Smooth Faced


345mm

300

420 x 330

9.7 2.9


Tiles per m2



WESSEX

Colour options: Smooth Grey, Smooth Brown, Old English Dark Red

Type

Smooth Faced


345mm

298

420 x 330

9.7 2.9


Tiles per m2



DUO MODERN

Colour options: Smooth Grey, Mosborough Red, Smooth Brown, Old English Dark Red

Type

Smooth Faced


345mm

292

420 x 330

10.7 3.1


Tiles per m2



1717

CONCRETE TILES

MARLEY ETERNIT INTERLOCKING CONCRETE SLATE PROFILE

16

CONCRETE TILES


ASHMORE

Colour options: Old English Dark Red, Smooth Grey, Mosborough Red, Burnt Heather, Chestnut

Type

Smooth Faced


190mm

302

333 x 267

17.5 5.3


Tiles per m2



MONARCH

Colour options: Slate Grey, Anthracite

Type

Riven


250mm

303

325 x 330

13.2 4


Tiles per m2



MELBOURN

Colour options: Melbourn Grey

Type

Riven


250mm

300

300 x 327

13.3 4


Tiles per m2



DALESTONE

Colour options: Flint, Harvest, Willow

Type

Riven


250mm

303

325 x 330

13.2 4


Tiles per m2



MARLDEN

Colour options: Marlden Burnt Brown, Marlden Brown, Marlden Orange

Type

Fine Sanded Finish


100mm

168

267 x 168

60 10


Tiles per m2



HERITAGE

Colour options: Heritage Burnt Heather, Heritage Burnt Red, Heritage Chestnut, Heritage Flame Red, Heritage Natural Red,Berkshire Red

Type

Fine Sanded Finish /Smooth


100mm

168

267 x 168

60 10


Tiles per m2



EDGEMERE

Colour options: Smooth Grey, Smooth Brown, Old English Dark Red

Type

Smooth Faced


345mm

298

420 x 330

10.5 3.1


Tiles per m2



DUO EDGEMERE

Colour options: Smooth Grey, Old English Dark Red

Type

Smooth Faced


345mm

298

420 x 330

10.5 3.1


Tiles per m2



MARQUESS

Colour options: Slate Grey

Type

Smooth Faced


250mm

303

325 x 330

13.2 4


Tiles per m2



DUO MARQUESS

Colour options: Slate Grey, Tuscan Red

Type

Smooth Faced


250mm

303

325 x 330

13.2 4


Tiles per m2



MARLEY ETERNIT INTERLOCKING CONCRETE SLATE PROFILE

MARLEY ETERNIT CONCRETE PLAIN

1919

CONCRETE TILES

18

CONCRETE TILES

MARLEY ETERNIT CONCRETE PLAIN

THAXDEN

Colour options: Thaxden Burnt Orange, Thaxden Sienna, Thaxden Ochre Blend

Type

Granular


100mm

168

270 x 168

60 10


Tiles per m2



PLAIN

Colour options: Antique Brown, Greystone, Dark Red, Cotswold, Smooth Red, Smooth Grey, Anthracite, Mosborough Red, Acorn Brown,Rustic Grey, Smooth Brown, Old English Dark Red, Brindle Weald, Chiltern Brown

Type

Smooth/Granular


100mm

168

267 x 168

60 10


Tiles per m2


(max. gauge)Cover Width (mm)Overall Size (mm) Colour options: Antique No. 2, Mottled Red, Cornish Grey, Light Grey, Dark Grey, Brown, Terracotta Red, Rustic, Dark Heather, Harvest, Charcoal

DOUBLE ROMAN (CT)Type

Smooth Faced

Sand Faced

17.5º

345mm

30º

345mm

300

420 x 334

300

420 x 334

9.7

9.7

2.91


Tiles per m2



Colour options: Antique No. 2, Mottled Red, Cornish Grey, Light Grey, Dark Grey, Brown, Terracotta Red, Rustic, Dark Heather, Charcoal

LINDUM (CT)Type

Smooth Faced

Sand Faced

22.5º

345mm

30º

345mm

300

420 x 334

300

420 x 334

9.7

9.7

2.91


Tiles per m2



Colour options: Antique No. 2, Mottled Red, Brindle, Light Grey, Dark Grey, Brown, Terracotta Red, Rustic, Dark Heather, Harvest, Charcoal

DOUBLE PANTILE (CT)Type

Smooth Faced

Sand Faced

17.5º

345mm

30º

345mm

300

420 x 334

300

420 x 334

9.7

9.7

2.91


Tiles per m2



Colour options: Antique No. 2, Mottled Red, Cornish Grey, Light Grey, Dark Grey, Brown, Terracotta Red, Rustic, Dark Heather, Harvest, Charcoal

STANDARD PATTERN (CT)Type

Smooth Faced

Sand Faced

22.5º

305mm

30º

305mm

200

380 x 230

200

380 x 230

16.5

16.5

3.3


Tiles per m2



Colour options: Antique No. 2, Mottled Red, Light Grey, Dark Grey, Brown, Terracotta Red, Rustic, Dark Heather, Harvest, Charcoal

SHIRE PANTILE (CT)Type

Smooth Faced

Sand Faced

22.5º

305mm

30º

305mm

200

380 x 230

200

380 x 230

16.5

16.5

3.3


Tiles per m2



Jewson can supply all sizes of roofing batten for all types of roof coverings. B.S 5534-2003 states that the size of batten required is dependent on rafter spacing and type of roof covering.

Please refer to the estimating guide and/or manufacturer’s data tables to estimate your roof batten requirements.

Sandtoft is the UK’s leading independent roof tile manufacturer, supplyingthe market place with concrete, clay and slate, plus a wide range ofroofing systems.

UP TO 450mm ccs UP TO 600mm ccs

Natural Slates 50 x 25mm Natural Slates 50 x 25mm Fibre Cement Slates 38 x 25mm Fibre Cement Slates 50 x 25mm

Double lap Clay and Concrete Tiles 38 x 25mm (plain tiles) Double lap Clay and Concrete Tiles 38 x 25mm (plain tiles)Single lap Clay and Concrete Tiles 38 x 25mm Single lap Clay and Concrete Tiles 50 x 25mm

SANDTOFT INTERLOCKING CONCRETE PROFILE

212120

CONCRETE TILES CONCRETE TILES

SANDTOFT CONCRETE SLATE PROFILE

Colour options: Grey, Dark Stone, Brown, Classic Stoneblend, Ash Standard, Forest Standard

PENNINE SLATE (STANDARD)Type

Smooth Faced

25º

202mm

22.5º

195mm

300

480 x 420

420

480 x 420

11.79

12.21

4.95

5.13


Tiles per m2



Colour options: Grey, Dark Stone, Brown, Classic Stoneblend, Ash Stoneblend, Forest Stoneblend

PENNINE SLATE (SMALL)Type

Smooth Faced

25º

202mm

22.5º

195mm

280

480 x 280

280

480 x 280

17.68

18.31

4.95

5.13


Tiles per m2



SANDTOFT RECYCLED SLATE

BRITSLATE (610 x 305)

Colour options: Black, Slate Grey, Heather Blue, Lakeland Green

Type

Riven

20º

variable

305

610 x 305

12 to 13.7 3.68 to 4.16


Tiles per m2



BRITSLATE (510 x 255)


Type

Riven

22.5º

variable

255

510 x 255

17.6 to 19.8 4.5 to 5.08


Tiles per m2



BRITLOCK SLATE


Type

Riven

17.5º

240 to 285mm

300

360 x 340

11.7 to 13.9 3.5


Tiles per m2



SANDTOFT CONCRETE PLAIN

Colour options: Antique No 2, Mottled Red, Cornish Grey, Brindle, Sandown, Light Grey, Dark Grey, Brown

PLAIN TILE (CT)Type

Smooth Faced

Sand Faced

35º

100mm

35º

100mm

165

265 x 165

60 10


Tiles per m2



SANDTOFT INTERLOCKING CONCRETE SLATE PROFILE

SANDTOFT INTERLOCKING CONCRETE PROFILE

BOLD ROLL (CT)

Colour options: Light Grey, Dark Grey, Brown, Rustic, Charcoal, Terracotta Red, Dark Heather

Type

Smooth Faced

22.5º

345mm

300

420 x 334

9.7 2.91


Tiles per m2



CALDERDALE SLATE

Colour options: Light Grey, Dark Grey, Brown, Rustic, Harvest, Charcoal, Terracotta Red, Dark Heather

Type

n/a

22.5º

345mm

294

420 x 334

9.9 2.91


Tiles per m2



2323

CLAY TILES

22

CLAY TILES

SANDTOFT CLAY TILES

20/20 INTERLOCKING PLAIN TILE

Colour options: Natural Red, Flanders, Tuscan, Antique

Type

Smooth Faced

25.5º

255mm max

195

332 x 225

20 3.92


Tiles per m2



COUNTY PANTILE


Type

Smooth Faced

22.5º

320mm

210

384 x 267

14.9 3.13


Tiles per m2



ARCADIA PANTILE

Colour options: Reclaimed

Type

30º

270mm

210

342 x 252

17.5 3.7


Tiles per m2



OLD ENGLISH PANTILE

Colour options: Natural Red, Flanders, Antique

Type

Smooth Faced

30º

270mm

210

342 x 252

17.5 3.7


Tiles per m2



Jewson will supply clay plain, all interlocking and non-interlocking large formatprofiles from both major and private manufacturers. Our clay tile range covers abroad spectrum of both colour and texture from modern machine made tiles to themore traditional clay designs. Jewson will ensure that all necessary clay fittings aremade available to complete your desired roof line.

ASHDOWNE

Colour options: Chelwood, Melford, Ashurst, Aylesham, Aylesham Mix, Dark Oakwood, Wessex Blend

Type

Sand Faced


100mm

165

265 x 165

60 10


Tiles per m2



LAFARGE REDLAND CLAY TILES

ROSEMARY CLAY

Colour options: Red, Light Mixed Brindle, Medium Mixed Brindle, Russet Mix, Burnt Blend

Type

35º

100mm

165

265 x 165

60 10


Tiles per m2



MARLEY ETERNIT PLAIN/CLAY TILES

ACME

Colour options: Heather, Farmhouse Brown, Red Smooth, Smooth Brindle, Dark Brindle, Century, Burnt Flame, Natural Orange, Antique,Red Brindle Sandfaced, Red Sandfaced, Grey Sandfaced

Type

Sand Faced


100mm

165

265 x 165

60 10


Tiles per m2



HAWKINS

Colour options: Red Blend, Dark Heather, Staffordshire Mixture, Brown Heather, Heather Mixture, Staffordshire Blue

Type

Sand Faced


100mm

165

265 x 165

60 10


Tiles per m2



2525

CLAY TILES

SANDTOFT CLAY TILES

24

CLAY TILES

SANDTOFT CLAY TILES

HUMBER PLAIN TILE


Type

Smooth Faced

35º

100mm max

165

265 x 165

60 10


Tiles per m2



BALMORAL CLAYSLATE

Colour options: Antique

Type

Riven

22.5º

267mm

187

370 x 223

20 3.75


Tiles per m2



GOXHILL PLAIN TILE

Colour options: Dark Red, Dark Chestnut, Light Red, Autumn Brown

Type

Sand Faced Hand Made

40º

100mm max

165

265 x 165

60 10


Tiles per m2



GREENWOOD PANTILE

Colour options: Natural Red, Etruscan

Type

Hand Made

30º

267mm

220

342 x 253

17 3.75


Tiles per m2



GAELIC PANTILE

Colour options: Natural Red

Type

Hand Made

30º

267mm

220

342 x 253

17 3.75


Tiles per m2



OLYMPUS

Colour options: Natural Red, Flanders, Tuscan

Type

Smooth Faced

tbc

tbc

tbc

tbc

tbc tbc


Tiles per m2



BRIDGWATER DOUBLE ROMAN

Colour options: Somerset

Type

Smooth Faced

30º

345mm

305

420 x 340

9.5 2.9


Tiles per m2



NEO PANTILE

Colour options: Natural Red, Flanders, Tuscan

Type

Smooth Faced

22.5º

309mm max

220

384 x 250

14.7 3.23


Tiles per m2



26

CLAY RIDGE TILES

2727

MAIN HEADERFIBRE CEMENT SLATE TILES

27

RIDGE TILES• Provide a durable weather barrier at the

ridge to match new or existing roofscapes

• Comply to BS402: Part 1:1990

CALCULATING THE CORRECT ANGLE FOR YOUR RIDGE TILE1) Find the roof pitch (the angle at the eaves)

then multiply by 2

2) Then subtract that number from 180°

Use the table above to quickly identify your ridge and hip angle requirements at a glance

e.g Roof pitch = 22.5° x 2 = 45°Ridge Angle = 180 - 45 = 135°Hip angle required = 135°

FIBRE CEMENT

MOORLAND/BIRKDALE (E3000)Type

Smooth surface and

dressed edge


245mm

600 x 30013.4 4.08


Tiles per m2



ZEELAND/GARSDALE (E2000T)Type

Textured surfaceand

square edge


245mm


312mm

600 x 300

500 x 250

13.4

19.6

4.08

5


Tiles per m2



JUTLAND/THRUTONEType

Flat surfaceand

square edge


245mm


300mm

600 x 300

500 x 250

13.4

19.6

4.08

5


Tiles per m2



WESTERLAND/RIVENDALEType

Textured surfaceand

dressed edge


245mm

600 x 30013.4 4.08


Tiles per m2



ROOF PITCH RIDGE ANGLE REQUIRED HIP ANGLE REQUIRED

22.5° 135° 135°27.5° 125° 135°32.5° 115° 125°37.5° 105° 125°45° 90° 115°

52.5° 75° 105°

Jewson provides fibre cement slates from all major suppliers. The table below showsthe equivalent tiles of two established suppliers in this market. Because ofinterpretation of the latest British and European standards there may be slightdifferences in number of slates per square metre required by manufacturer. However, the table shows the approximate average that is generally acceptable. There may also be slight differences in acceptable roof pitch/batten gauge by certainmanufacturers depending on the severity of conditions. The table is intended as aguide for quantification purposes only and more detailed information can be obtainedby contacting the specific supplier.

Jewson offers a wide range of natural tiles to suit all requirements. We have different textures andcolourways from Wales, Spain, Brazil and China. All our slate is provided by leading-name suppliers,including Spanish Slate Quarries, Independent Slate Supplies and Cembrit Blunn.

NATURAL SLATE TILES

2928

nual Driving Rain IndexSpeed in m2/sec

an 7m2/sec

an 7m2/sec

NATURAL SLATE TILES

HOW TO WORK OUT THE NUMBER OF SLATES YOU NEEDMost slates are supplied pre-holed at either 75mm or 100mm headlap. This page will help you determine which headlap and how many slates and battens per square metre you require.

The map shown opposite indicates which parts of the country are exposed to moderate or severe weather conditions.

Use table 1 to establish the minimum headlap you will require based on the pitch of your roof, and whether your roof will be exposed to moderate or severe conditions.

The headlap this gives you is the minimum required. You will need to select the slate with the pre-holed headlap over this minimum e.g. 30° roof pitch in moderate exposure requires 80mm headlap. By rounding this up the 100mm pre-holed slate would be required.

Table 2 can then be used to establish the quantity of slate and batten required based on the slate size and headlap.

To work out the batten gauge, follow the calculation below:

Length of slate – headlap = gauge2

There may be slight differences in acceptable roof pitch/batten gauge by certain manufacturersdepending on the severity of the conditions. The table is intended as a guide for quantificationpurposes only and more detailed information can be obtained by contacting the specific supplier.

Table 1

Table 2

ROOF PITCH HEADLAP - MODERATE EXPOSURE HEADLAP - SEVERE EXPOSURE

40 º 60mm 80mm35 º 70mm 90mm30 º 80mm 100mm

27.5 º 85mm 110mm25 º 95mm 120mm

SLATE SIZE HEADLAP SLATE PER M2 BATTEN PER M2

600 x 300 75mm 12.7 3.81100mm 13.3 4

500 x 250 75mm 18.9 4.71100mm 20 5

400 x 250 75mm 24.7 6.16100mm 26.7 6.67

400 x 200 75mm 30.8 6.16100mm 33.4 6.67

Moderate: less than 7m2/sec

Severe: greater than 7m2/sec

Natural Slate – Welsh

Natural Slate – Brazilian

The quality of slate can vary enormously, but there are two main grades: First/Premium, which comeswith a 50-year guarantee, and Standard/Economy, which has a 30-year guarantee. Some supplierseven offer a higher-grade slate with a 75-year guarantee.

Prices obviously vary according to grade and quality. We recommend you view our slates beforeordering – our roofing experts will be on hand to help you decide.

All Jewson slate conforms to the latest industry standard BSEN 12326:2004. As slate is a naturalproduct, some tiles may be a different thickness within the same load. It is therefore necessary to sort slates before work begins.

Map showing Annual Driving Rain Indexand Basic Wind Speed in m2/sec

3130

In order to provide a weatherproof junction, a complete range of universally designed, highperformance valley troughs for tile or slate roofs is available from Jewson. Each product is for use withroofs constructed in accordance with the relevant requirements of BS5534: Part 1: (Slating and Tiling)and BS8000: Part 6: (Workmanship on Building Sites).

PITCHED ROOFING ACCESSORIES PITCHED ROOFING FELTS

COLD ROOFNo ventilation of the roof space is required if using concrete, clay or natural slates. No counter battens are required when the underlay can‘drape’ between rafters.

WARM ROOFNo batten cavity ventilation required if using concrete, clay or natural slates. Counter battens are required, however the underlay can be laid on top of the insulation or over the counter batten so the underlay can‘drape’ between battens.

HYBRID WARM ROOFNo ventilation under or over the underlay is required if using concrete, clayor natural slates. No counter battens are needed if the underlay can ‘drape’between rafters (hybrid partial fill), counter battens are needed on full fillapplications or where a ‘drape’ in the underlay can not be maintained.

Pitched roof ventilators are used when continuous eaves or ridge line ventilation is not available withproprietary product, or for use with mechanical extraction units for kitchens/bathrooms or soil vent stacks.

BREATHABLE MEMBRANES

JEWSON 1FJewson offers the traditional BS 747 type 1F undertile felt, which is availablein 15m x 1m rolls. Where standard 1F felt is used provision should be made for the introduction of mechanical ventilation. Please refer to pages 32-35 for more information.

STANDARD FELTS

TILE VALLEY TROUGHA high quality valley trough for use with both interlockingand plain tiles. Pronounced upstands and wider secondarydrainage channels provide extra protection against waterpenetration and mortar blockage. The two firmly bondedsanded strips allow strong mortar adhesion.

SLATE VALLEY TROUGHDesigned for use with natural or man-made slates. Profile allows slates to be laid evenly in conventionalmanner except that slates do not need to be bedded with mortar, but can be laid ‘dry’.

BONDING STRIPAn effective method of jointing adjacent roof slopes,whether of similar or different materials ie slate and tile (not suitable for use with Cambrian Slates). Features a firmly bonded sanded strip to ensure strong mortar adhesion.

SECRET GUTTERA high performance secret gutter for use with all flatinterlocking tiles. Acts as a secondary line of defenceagainst wind driven rain at a vulnerable point on theroof. Anti-capillary rib stops water tracking back into the roof space. Manufactured from UV stabilised PVC.

Manufacturer Brand Cold Roof Warm Roof Hybrid Roof BBA Certified

Tyvek ✔ ✔ ✔ ✔

Monoperm 700 ✔ ✔ ✔ ✔

l Permo ✔ ✔ ✔ ✔

RoofTX ✔ ✔ ✔ ✔

PUSH IN VENT• Mainly used in refurbishment• Convenient for use in existing board• Provides 1600mm2 of free airflow

VENTILATION

3332

VENTILATION

Ventilation is required within roof construction in order to control condensation within the buildingenvelope – this is documented in BS5250:2002. Detailed below is a basic guide to the standard.

INTRODUCTION TO VENTILATION LOW LEVEL EAVES TO EAVES VENTILATION

STANDARD DUO PITCH ROOFOF 15° PITCH AND ABOVE

REQUIREMENT:10mm continuous opening at eaves, with additional high levelventilation of 5mm for pitches over 35° and or spans over 10m.

LEAN-TO OR MONO PITCH ROOFOF 15° PITCH AND ABOVE

REQUIREMENT:10mm continuous opening at eaves and high level ventilation of 5mm.

DUO PITCH ROOF OF 15° AND ABOVE,WITH DIVISION WALLS

REQUIREMENT:10mm continuous opening at eaves, with a 5mm continuousopening immediately below, and 10mm continuous openingimmediately above each division wall.

DUO PITCH ROOF, WITH CEILING ANDINSULATION INCLINED

REQUIREMENT:25mm continuous opening at eaves, with additional high levelventilation of 5mm either side of the ridge line.

OVER-FASCIA VENTUsed where the fascia board is fitted to the ends of the rafters,creating a situation where ventilation can only be affected over the top ofthe board. Suitable for new build and refurbishment situations.

EAVES FELT SUPPORT TRAYThe Eaves Vent Protector is used to overcome two problems associatedwith using traditional bitumen based roofing felt. These are perishing andcracking at the point where it is dressed into the gutter, and watercollecting between rafters and the rear of the fascia board.

ROLL FORM EAVES VENTThis provides a very economical and convenient solution to the secondary eavesventilation. This product ensures that a ventilation channel at least 25mm deepis maintained between the insulation and roofing felt. Supplied in 6m rolls tobe rolled out along the rafters and nailed or stapled into position.

EAVES COMB FILLERThe Eaves Comb Filler prevents the entry of birds and rodents beneath profiled roof tiles.

CONTINUOUS SOFFIT VENT• Use where soffit board follows underside of rafters• Sloping Soffit Vent also available

VENTILATION

3534

VENTILATION

Pitched roof ventilators are used when continuous eaves or ridge line ventilation is not availablewith proprietary products, or for use with mechanical extraction units for kitchens/bathroomsor soil vent pipe stacks.

ROOF SLOPE VENTILATION

Dry fix is suitable for most makes of roof tile and slate. Designed to comply with the fixingrequirements of BS5334:2003, and provide a secure maintenance free method of fixing ridge tiles toreduce the risk of damage caused by wind uplift and water penetration. Dry verge products offer aneat, attractive maintenance-free solution to traditional mortar bedded verges.

HIGH LEVEL EAVES TO RIDGE VENTILATION

UNIVERSAL VENT TILEHigh capacity 15,000mm2 vent tile.Adaptor and flex-pipe available for soil ventilation or mechanicalextraction. Minimum roof pitch 17.5°. Available in Brown, Grey and Terracotta. Suits standard format metric concrete or clayinterlocking tiles.

UNI-LINE TILE VENTUni-Line Tile Vent capacity 10,000mm2.Mechanical adaptor incorporated into back plateflex-pipeavailable for soil ventilation or mechanical extraction. Minimumroof pitch 20°. Available in Brown, Grey and Terracotta. Suits standard format metric concrete or clay interlocking tiles.

UNI-PLAIN TILE VENTUni-Plain Tile Vent capacity 6,000mm2.Adaptor and flex-pipe available for soil ventilation or mechanicalextraction. Minimum roof pitch 35°. Available in most colours and finishes as supplied by tile manufacturers. Colour matchingservice also available.

UNI-LINE SLATE VENTUni-Line Slate Vent capacity 6,500mm2.Mechanical adaptor incorporated into backplate, flex-pipeavailable for soil ventilation or mechanical extraction. Minimum roof pitch 35°. Available in slate grey, dark slate andslate blue.

UNI-DRY VENTILATING RIDGESuits most half round and angled ridge tiles. Secure mechanical fixing avoids wind uplift problems. Allows all-weather fixing. Mortar-free eliminating wet trades and associated problems. Suitable for new build and re-roofing situations for roofs 15° to 45° pitch. Incorporates high level ventilation to BS5250 requirements. Complies fully with relevant Building Regulations and British Standards. Quick and easy to fix.

ROLL-FIX RIDGE & HIPSuits most half round and angled ridge/hip tiles. Secure mechanical fixing avoids wind uplift problems. Mortar-free eliminating wet trades and associated problems. Suitable for new build and re-roofingsituations for roofs 15° to 45° pitch. Incorporates high levelventilation to BS5250 requirements. Complies fully with relevantBuilding Regulations and British Standards. Quick and easy to fix.

UNI-DRY VERGEThe one system fits most makes of roof tile. Neat, attractiveappearance. Will accommodate settlement or differential movement of the roof structure.

CONTINUOUS DRY VERGEThe one system fits most makes of roof tile and slates. Neat, attractive appearance. Will accommodate settlement ordifferential movement of the roof structure.

ROOF WINDOWS

3736

Huge range of superb roof windows for lofts, pitched or flat roof extensions. For versatility and quality, VELUX is hard to beat. You get a great product and great service and back up.

ROOF WINDOWS

CENTRE-PIVOT VELUX GGLClassic pine finish centre-pivot roof window

• Background ventilation through top vent

• Rotates 180°

• Choice of glazing

• Roof pitches 15-90°

BATHROOMS AND KITCHENS VELUX GGUMoisture resistant white polyurethane finish

• Polyurethane round a timber core• Easy wipe clean moisture resistant• Choice of glazing including obscure• Roof pitches 15-90°

EMERGENCY ESCAPE VELUX GPLTop-hung emergency escape window.

• Where regulations require escape window• Will rotate 180°• Roof pitches 15-55° (75° with special springs)• Choice of glazing

OPEN SPACES VELUX GHLIdeal for shallower pitch roofs.

• Makes the most of any view• Will rotate 180° to clean outer pane• Varnished pine• Roof pitch as GPL• Choice of glazing

8 standard sizes*

EDL For slate up to8mm thick. Roof pitches 15-90°.

EDZ For tile up to45mm in profile. Roof pitches 20-90°.

EDW For tile up to120mm in profile. Roof pitches 15-90°.

EDP For plain tiles up to15mm thick, max. 340mmlong. Roof pitches 25-90°.

• Single Cabrio or multiplepackages available

• Superbly engineered


Also available:

• Roof Terrace System willadd a new dimension toany development

• Choice of packages

• Black metal work andcentral mullion


roof pitch0-15°

MAX. 8mm MAX. 45mm MAX. 120mm MAX. 15mm

7 standard sizes*

CONSERVATIONCentre-pivot or Top-hung(escape) in a traditional style.

• Pre installed motor and electrical control• Complete with rain sensor and remote• Choice of finish• Simply plug and play installation• Roof pitches 15-90°

INTEGRA® ELECTRICROOF WINDOWSFor those out-of-reach situations.

Available across the full GGL and GGU size ranges

*All sizes shown are exterior frame sizes, nominal W x H, in centimetres. *All sizes shown are exterior frame sizes, nominal W x H, in centimetres.

CABRIO BALCONYCreate a real ‘wow’ factor with VELUX Cabrio or Roof Terrace System.

From Roof Window to stunning balcony in only a few seconds.

FLASHINGSFor all roof types and materials. See VELUX Brochurefor full range.

FLAT ROOF WINDOWSNow available in 8 sizes.

• Choice of manual or Integra® electric operation.• Complete with insulated wood kerb.

BFX UNDERFELT COLLARProvides a fast connection between window and roofing felt/membrane.

Every window size available – just one price.

BLINDS ANDACCESSORIESAvailable in selected stores or to order. Blind brochure freely available or visitwww.VELUX.co.uk

Window DimensionsCO2 55 x 78CO4 55 x 98FO6 66 x 118MO4 78 x 98MO6 78 x 118MO8 78 x 140P10 94 x 160SO6 114 x 118

8 standard sizes*Window Dimensions

B04 47 x 98C27 55 x 67CO4 55 x 98M02 78 x 78MO4 78 x 98P04 94 x 98S06 114 x 118U10 134 x 160

Centre-pivot – 3 sizes*Window Dimensions

CO4 55 x 98FO6 66 x 118MO8 78 x 140

• Roof pitches 15-55°(75° with special springs)

• Will rotate 180°

Top-hung Escape – 1 size*Window Dimensions

MO8 78 x 140

Window DimensionsCO2 55 x 78CO4 55 x 98FO6 66 x 118MO4 78 x 98MO6 78 x 118MO8 78 x 140SO6 114 x 118


CO4 55 x 98FO6 66 x 118MO4 78 x 98MO6 78 x 118MO8 78 x 140SO6 114 x 118


MO6 78 x 118MO8 78 x 140P10 94 x 160SO6 114 x 118

FLAT ROOF WATERPROOFING

3938

Jewson offers a wide range of roof domes for all Flat Roofing applications which bring natural light into your rooms. We only supply recognised and fully tested quality designs.

ROOF DOMES

Taping Strip

PLYWOOD INSULATED

Jewson Torch-On APP Cap Sheet

Vapour Control Layer Marley L/W PolyesterUnderlayer

Jewson Torch-On APP Underlayer

Suitable TorchEnabled Board

BENEFITS• No hot bitumen, bucket or boiler required

• Quicker and easier than pour and roll

• High quality APP modification for controlled torching

• Embossed under surface for quicker and more even application of heat

• Ideal for new roofs and repair of existing felt and asphalt roofs

• 12-year material guarantee

CONCRETE DECK INSULATED

Primed Concrete Deck

Jewson Torch-On APPCap Sheet

Vapour Control Layer Marley L/W PolyesterUnderlayer

PerforatedVenting Layer

Jewson Torch-On APP Underlayer

Suitable TorchEnabled Board

The Jewson Torch-On range is simplicity itself, with a glass underlay and polyester cap sheet designed specially for the UK climate, complete with a 12-year material guarantee.

APP TORCH-ON ROOFING SYSTEM

The table below demonstrates roof domes ranges with recommended applications and U-Values. (Based on double skin domes.)

All Coxdomes have been tested and have achieved a Class B Non Fragile pass when used with a Coxdome Upstand.

All Coxdomes achieve a Class 1 surface spread of flame classification. Therefore are regarded to have an AA designation.

• No maintenance required

• Energy free natural lighting

• No structural alterations on smaller sizes

• No heat loss in winter or solar gainin summer months

• Virtually burglar proof and vandal resistant

2000 Domestic 2.20

MARK 5 Commercial 3.00

TPX Commercial 2.34

TRADE Domestic 2.20

GALAXY Refurb 2.34

Trade

Galaxy

2000

SUN TUBES

AT A GLANCE

FLAT ROOF WATERPROOFING REFERENCE GUIDE

4140

FLAT ROOF WATERPROOFING

PLYWOOD UNINSULATED

Taping Strip

Marley L/W Polyester Cap Sheet

Marley L/W PolyesterUnderlay Nailing Layer

Marley BS 747Type 3G Venting Layer

Marley L/W Polyester Underlay

Taping Strip

PLYWOOD INSULATED

Marley L/W PolyesterCap Sheet

Vapour Control Layer Marley L/W Polyester Underlayer

Marley L/W Polyester Underlay

BituminousEnabled Insulation

BENEFITS• High quality polyester based material

• 10-year material guarantee

• Rot proof

• Lasts longer than traditional fibre base membranes

Bitumen block, felt adhesives and primers are also available at Jewson.

Jewson supplies Marley Waterproofing high-performance polyester roofing membranes suitable forplywood and concrete decks, which are component parts of a two or three layer built up roofing system for flat roofs.

HIGH PERFORMANCE POLYESTER ROOFING MEMBRANES

HINTS AND TIPSPreparation: Check for damaged timbers, wet decks, surface contaminates.

Application: Follow all health and safety advice, checking you are using the correct tools and that they are in good condition.

Aftercare: Ensure that the gutters and outlets are clear and free draining.

Self adhesive Flashband is ideal for emergencies or as a replacement for lead. Including primer forease of application it forms an instant waterproof seal. It can be easily cut to the correct length and is available in a variety of roll sizes.

BUILD UP APPLICATION LIFE ESTIMATE 20m2 ROOF AREA EXPECTANCY INCLUDING DETAILING

Jewson 38 Pours and Roll 3-5 years 3 Rolls (30m2)

Jewson Underlay Pours and Roll 3-5 years 3 Rolls (30m2)

Trade Prep: Nail or Venting Pours and Roll 3-5 years 3 Rolls (30m2)

Polyester Oxidised Cap Sheet Pours and Roll 8-10 years 4 Rolls (24m2)

Polyester Underlay Pours and Roll 8-10 years 2 Rolls (32m2)

Trade Prep: Nail or Venting Pours and Roll 8-10 years 3 Rolls (30m2)

Tufftorch APP Cap Sheet Torch On 10-12 years 4 Rolls (24m2)

Tufftorch APP Underlay Torch On 10-12 years 2 Rolls (32m2)

Trade Prep: Nail or venting Torch On 10-12 years 3 Rolls (30m2)

Jewson APP Cap Sheet Torch On 10-12 years 4 Rolls (24m2)

Jewson APP SBS Underlay Torch On 10-12 years 2 Rolls (32m2)

Prep: Nail or Venting Torch On 10-12 years 3 Rolls (30m2)

Taping strip 125 16m x 100mm (where applicable) Dependent on timber deck

Primer (where applicable) 5 litre (25m2)

Keg Bitumen 40kg

FLASHING TAPE

WATERPROOF ROOF COATINGJewson offers the market-leading, single coat, roof repair compound

• Flexible roof coating with fibres

• Instant waterproofer

• Stops leaks immediately

• One coat application

BATTENS

4342

ROOFING SHEET MATERIALS

• A more balanced construction

• Predictable strength properties

• Consistency in quality and light in weight

• Fully sanded faces give an attractive aestheticappeal, for a panel widely used in the construction industry

• Structural grade WBP Plywood for floors, walls and roofs

• Fulfils the requirements of European Standard EN 314 Class 3, Exterior (WBP)

• The structural properties of WISA-Spruce are listed in BS 5268-2:2002

• PEFC

• 18mm thickness, standard board size = 2440 x 1220 (coverage 2.9768m2)

• BBA Approved

• Precision engineered panel ideal for structural applications

• FSC certified

Also available from selected branches is Sterling Roofdek; a board that combines allthe features and benefits of Sterling OSB3 Roofdek.

• Sterling Roofdek is designed specifically for flat roofing and pitched roofing applications, and is approved for structuralapplications under BS 5268:Part 2.1996 andEurocode 5

• Sanded surface which gives improved adhesion for all roofing applications

• Tongue and grooved long edges which do notrequire continuous support

Softwood Plywood at its best. WISA-Spruce is manufactured from selected high quality Finnishspruce raw material sourced exclusively from forests environmentally managed for sustained growth.

WISA-SPRUCE PLYWOOD 111/111

OSB is a structurally engineered performance panel, providing uniformity, strength and versatility.

OSB & ROOF DECKING

NAILSJewson stocks a wide range of nails for roofing applications.

Nails are sold by weight in boxes and tubs for convenience and ease of handling. Nails in varioussizes are mainly packed in 1kg, 2.5kg and 25kg boxes.

Jewson has all the necessary nails and clips for you to get the job done, including galvanised clout,felt and springhead nails, copper and aluminium clout nails, stainless ring shank nails, complete withneoprene washer, bush, copper slate straps and disc rivets.

We also supply various roof line products such as plastic rainwater goods and UPVC fascia and soffitboards from all major manufacturers.

Frequently overlooked, Battens play a vital role in roofing, carrying the load exerted by tiles, nails and clips,not to mention roofers. The revised BS5534: 2003 was issued to correct this. It introduced more regulationsfor quality and safety as well as upgrading and updating the minimum size requirements and tolerances,etc. Our batten is treated to BS8417 Hazard Class 2.

Product Codes: 19x38, CT1938 25x38, CT253825x50, CT2550

NotesWhere continuous support is provided by Sarking under the battens, as in Scotland, 19x38 can be used. This table does not apply to any other application or situation.Battens complying to BS5534:2003 should be marked with the producer, species, size and, when graded, the grade. Where battens are unmarked or not pregraded it is the installer’s responsibility to ensure the batten meets all regulations. It is a requirement that all battens are given a final grading at time of installation.

ReferencesNational Roofing Federation Bulletin 33 January 2003, Graded Batten forSlating and Tiling. BS 5534:2003 Code of Practice for slating and tiling

APPLICATION MINIMUM BATTEN SIZESup to 450mm span up to 600mm span

Slates – Double lapNatural – sized or random 25x50 25x50Fibre-cement or concrete 25x38 25x50

Clay and Concrete tilesDouble Lap 25x38 25x50Single Lap 25x38 25x50

ROOF SHEETS

4544

VENTILATION COWLS & TERMINALS

Versatile, economic, transparent roofing and cladding sheet,Vistalux is a cost effective way of providing a wide range ofstructures with a practical, transparent roof.

• 10-year warranty• Light transmission 74%• Lightweight 0.8mm thick sheet

• Heavy duty 1.1mm thick sheet• Full range of foam fillers,

fixings and sealing tapes

Combining aesthetic appeal with exceptional strength, Corotherm canbe used to provide attractive roofs and canopies around the home.

• 10-year warranty• Light transmission 88%• 16mm triplewall• 25mm fivewall

• Extensive range of tints• Complete range of glazing

bars, side flashings, end caps, tapes and fixings

SUITABLE FOR GARDEN SHEDS AND A WIDE RANGE OF ROOFING PROJECTS

• Tough, lightweight, economical roofing optionwhich is simple to install

• 15-year warranty• Matching ridge pieces

and fixings

VENTILATION TERMINALS

• Used to cap off flues or chimneys that are no longer in use

• Comply with BS1181:1989 Type B

• Must not be used in live flues/appliances

STANDARD GAS TERMINALS

• Range of internal sizes

• Resistant to frost and freeze /thaw cycle


CHIMNEY POTS

• Available in functional and highly decorative designs

• Available in 3 colours – red, buff or blue/black


COWLS AND BIRDGUARDS

• Cowls are designed to suit various diameters and designs of chimney pots

• The range includes cowls to suit all fuels (gas, oil, coal and timber)

• Wide range of birdguards available

• Special units can be made to order

Hepworth provides a comprehensive range of terminals and chimney pots for both active and redundantchimneys to ventilate roof spaces, prevent rain penetration and provide an attractive finish.

The quality standards mentioned are subject to change.DESCRIPTION THICKNESS MM LENGTH MM WIDTH MM COLOURS

Vistalux 3” Superweight 1.3 1830, 2135, 2440, 2745, 3050, 3660 762 Clear

Corotherm Twinwall 10 2000, 2500, 3000 1050 Clear

Coroline Corrugated Sheet 2.6 2000 950 Black, Green

IDEAL FOR CARPORTS AND CANOPIES

IDEAL FOR SMART CANOPIES AND GLAZED ROOFS

LEAD FLASHING

4746

ROOF INSULATION

The following selection of Rigid Insulation Boards comply with Part L Building Regulations and offerhigh thermal efficiency, high compression strength, dimensional stability and efficiency in installation.

MULTI-THERM is faced with a bituminised glass-coated tissue on one side and a plain glass tissueon the other. The rigid urethane foam core is both CFC and HCFC free. A multi-purpose board whichreadily accepts the application of mastic asphalt and built-up felt with a ventilated base layer.

PITCHED-ROOF BOARD is faced on both sides with an alucraft foil. The insulating core is a CFCand HCFC-free Rigid Urethane Foam. A warm pitched roof insulation board applied over and/orbetween rafters to provide warm pitched-roof, slated or tiled constructions.

GLASS-THERM is faced with a clay filled glass fibre tissue on one side and plain glass tissue on theother. The rigid foam core is a closed cell. Suitable for use with adhesively bonded single ply PVC,EPDM or other single-ply non-bituminous waterproofing membranes.

BITU-THERM is PUR core, bitumen coated glass fibre on both sides. The rigid urethane foam core isboth CFC and HCFC free. For built up felt roofing.

ECO-DECK is a combination of tough, exterior grade, 6mm plywood and CFC and HCFC free, rigidPUR core. A simple, yet highly effective, practical, insulated roof deck easily fixed into place bynailing or screwing to joists or rafters. When using asphalt, a 12mm bitumen impregnated boardshould be laid to the ply first to act as a heat sink.

Jewson is the UK’s largest stockist of British Standard quality rolled lead sheet and flashings togetherwith all the essential products you need to complete the job.

JEWSON, FOR LEAD AND ALL THE ESSENTIALSPointing Sealant – saves mixing mortar when pointing in flashings.

Lead-Cote – the safe and easy way to prevent white carbonatestaining on newly fitted lead.

Lead Slates & Quick Slates – forms weather-tight seals where pipes go through roofs. Quick slate version can be cut on site to fit most diameters.

Hall Clips – fix flashings into chases up to 20 times faster

SIZING GUIDELINES FOR GOOD PRACTICERecommended approximate MAXIMUM SIZES of individual pieces of lead sheet

INSULATING BETWEEN JOISTSThe following table shows the U-values achieved usingISOWOOL LOFT INSULATION laid in the roof void. U-valuesare based on the first 100mm layer of insulation laid betweenthe joists and the remaining thickness installed as a secondlayer, cross laid over the joists to reduce cold bridging.

SPACESAVER ROLL• One product suits all joist centres

• Meets building regulations

• Best coverage per roll

THICKNESS OF ISOWOOL INSULATION 1ST LAYER 2ND LAYER U-VALUE W/M2.K

100mm 170mm 0.16

100mm 200mm 0.14

THICKNESS PACK AREA M2

100mm 11

150mm 6.99

170mm 6.25

200mm 4.50

CODE 4 CODE 5 CODE 6WEIGHT PER m2 20.41kg 25.40kg 30.10kg

NOMINAL THICKNESS 1.80mm 2.24mm 2.65mm

STANDARD WIDTHS 3m 6m 3m 6m 3m 6mMM NEAREST IMPERIAL kg kg kg kg kg kg150 6” 9 18 11 23 14 27240 9” 15 29 18 37 22 43300 12” 18 37 23 46 27 54390 15” 24 48 30 59 35 70450 18” 28 55 34 69 41 81600 24” 37 73 46 91 54 108

APPLICATIONSCODE LENGTH WIDTH Soakers Flashings Pitched Cladding Weatherings Parapet Roofing

MM MM Gutters Gutters3 1000 – ✔ ✘ ✘ ✘ ✘ ✘ ✘

4 1500 500 ✔ ✔ ✔ ✔ ✔ ✘ ✘

5 1500 600 ✘ ✔ ✔ ✔ ✔ ✔ ✔

6 2500 675 ✘ ✘ ✘ ✘ ✔ ✔ ✔

7 2500 675 ✘ ✘ ✘ ✘ ✘ ✔ ✔

8 3000 700 ✘ ✘ ✘ ✘ ✘ ✔ ✔

GUIDE TO STANDARD LEAD FLASHING ROLL WEIGHTS

N.B. These are approximate weights only

4948

ROOFING TOOLS AND TOOL HIRE

At Jewson you will find acomplete range of roofingtools and accessories,including ladders and accessequipment, available topurchase and for hire. Speak to a member of staffat your local Jewson branchwho will be happy to offeradvice and assistance.

Call 0800 539766 foryour nearest Tool Hirebranch or visitwww.jewson.co.uk

Ladders• One and two section

ladders available

• Strong and durable aluminium construction

• Incorporates heavy-duty non-slip rungs

These ladders are constructedfrom materials conforming toBS2037:1994 Class 1 and aredesigned for industrial use with a duty rating of 130kg.(Maximum permissible static load 175kg.) The standard does not specifically cover roofladders, as such it is not possibleto fix a Kite mark label.

5150

The estimating guide shown over the next few pages is intended as a handy reference guide. Please use this guide in conjunction with the data tables to give you all the information you need.Your local Jewson branch can arrange to send your drawings to the relevant tile manufacturer toarrange a specific site location ‘fixing specification’ for your project which will determine your exactfixing requirements for your roof covering.

ESTIMATING GUIDE FOR A GABLE TO GABLE ROOF ESTIMATING GUIDE FOR A GABLE TO GABLE ROOF

1. Calculate the number of tiles across the roof 2086 (a) = 7 tilesDivide the eaves width (a) by the width of the tile from 298 across roof

the data tables (e.g. Double Roman Tile = 298mm). Round this up to the nearest full tile.

2. Calculate the number of courses up the roof slope 1715 (b) = 5 coursesFind out the maximum gauge of your selected tile from 343the data tables (e.g. Double Roman Tile = 343mm).Divide the verge length (b) by this number.

3. Calculate the number of interlocking tiles required for the roof 7 x 5 = 35 tilesMultiply the number of courses by the number of tiles across the width 35 x 2 = 70 tilesof the roof and multiply by 2 for both sides of the roof.

4. Allow for wastage 70 x 2.5% = 1.75Minimum wastage should be calculated at 2.5%. 1.75 + 70 = 71.75

= 72 tiles

CALCULATING INTERLOCKING ROOF TILES

Eaves

Gable End

Fig. 1 (NOT TO SCALE)

Verge

Verge

(b) 1715mm

Ridge

(a) 2086mm

1. Calculate the roof area 2086 (a) x 1715 (b) Multiply the eaves length (a) and the verge length (b) = 3.578m2 (one roof slope)to get the total area of a roof slope, and multiply by two 3.578m2 x 2 to get the total area of the roof in square metres. = 7.16m2 total area

2. Calculate the number of plain tiles required for the roof 7.16m2 (area) x 60 (tiles per m2) Multiply the total roof area by 60, the number of plain tiles = 429.6 per square metre and round up to the nearest full tile. = 430 tiles

3. Allow for wastage 430 x 5% = 21.5Minimum wastage should be calculated at 5%. 21.5 + 430 = 451.5

= 452 tiles

CALCULATING PLAIN ROOF TILES

1. Calculate the number of courses 1715 (b) = 17.15 = 18 coursesDividing the verge length (b) by 100mm, the approximate 100 maximum gauge of a Plain Tile, will give the number of tiles up the roof slope, known as the “number of courses”. The resultingnumber should be rounded up to the nearest full tile.

2. Calculate the number of tile and a halves 18 courses x 2 verges A tile and a half is needed in every other course at the verge. = 36 tile and a halvesThe easiest way to work this out is to allow one per course on one side. This automatically allows for a tile and a half to every other course and for both roof slopes on the roof.

CALCULATING TILE AND A HALVES FOR A PLAIN TILED ROOF

1. Calculate the number of eaves 2086 = 12.64 = 13 eavesTake the eaves length (a) and divide by the width of an eaves tile. 165mm

2. Calculate the number of eaves tiles 13 eaves x 4 = 52 eaves Multiply by 2 for both sides, and multiply by 2 again for the ridge.

CALCULATING EAVES/TOPS TILES FOR A PLAIN TILE ROOF

ESTIMATING GUIDE FOR A GABLE TO GABLE ROOF ESTIMATING GUIDE FOR A GABLE TO GABLE ROOF

5352

1. Identify overlap requiredFrom table 1 below identify the required overlap based on your roof pitch.

Side lap should always be maintained at 100mm. The above minimum overlapsare all in accordance with current B.S. and European Standards. A standard 5% wastage factor should always be allowed for after your calculation.

2. Identify coverage of a 50m x 1.5m rollFrom table 2 below identify the coverage you require according to your overlap.

3. Calculate number of rolls required to cover your roofDivide the total area of your roof by the coverage from a single roll.

4. Allow for wastageMinimum wastage should be calculated at 5% and rounded up to the nearest roll.

Roof Pitch = 12.5º to 14 º then overlap = 225mm

Overlap = 225mm then coverage = 63.62m2

7.16m2 = 0.1163.62m2

0.11 x 5% = 0.10.1+ 0.11 = 0.12 = 1 roll

CALCULATING BREATHABLE MEMBRANES

ROOF PITCH 12.5 to 14º 15 to 34º >34º

OVERLAP (mm) 225 150 100

TABLE1

OVERLAP (mm) 75 100 150 225

COVERAGE (m2) 71.36 69.86 67.36 63.62

1. Calculate batten required for one side of the roof Interlocking Roof TileTo work out the amount of batten required, multiply the 5 courses x 2086 (a) number of courses by the eaves length. = 10430mm

2. Calculate total batten required 10430 x 2 = 20.86 For both sides of the roof area multiply 10430mm x 2 (roof sides) = 21 metresand round up to the nearest metre.

3. Allow for wastage 21 x 7.5% = 1.58 Minimum wastage should be calculated at 7.5%. 1.58 + 21 = 22.58

= 23 metres

CALCULATING BATTENS

1. Calculate the square metre area of one slope 2086 (a) x 1715 (b) Multiply the eaves length by the rafter length. = 3.578m2

2. Calculate the total roof area 3.578 x 2 = 7.16m2

Multiply the area of one roof side by 2.

3. Calculate the number of rolls of underlay 7.16 (roof area) = 0.57 = 1 rollTo work out the area of underlay required, simply divide the 12.5 (roll cover) total roof area by the net coverage of a roll, 1 roll of underlay 1F (15m x 1m) = 12.50m2 (This allows for 2.5m2 of waste and overlap per roll), and then round up to the next full roll.

CALCULATING UNDERLAY (FELT)

1. Calculate the total verge length 1715 (b) x 4 = 6.86mThe verge lengths must be equal to the rafter lengths. There arefour verges to this roof area so multiply the verge length by 4.

2. Calculate the number of undercloak strips 6.86m = 5.71 = 6 stripsDivide the total verge lengths by 1.20m or 2.40m, 1.2m depending on the length of the undercloak strips available, orand round up to the nearest strip. 6.86m = 2.86 = 3 strips

2.4m

CALCULATING UNDERCLOAK (FIBRE CEMENT STRIP) REQUIRED

1. Calculate the number of ridge tiles 2086 (a) = 4.56 = 5 ridge tilesRidge tiles are half round, angle or universal and 457mm inlength. To work out how many are required, divide the length of the roof by 457mm then round up to the next full ridge tile.

CALCULATING RIDGE TILES

Allow 1 unit per course of tiles up the rafter/verge.Allow 1 stop end starter unit per first course up the rafter/verge.(These units will either be universal or sold as left/right hand units.)

CALCULATING INDIVIDUAL UPVC DRY VERGE UNITS

TABLE2

PITCHED ROOFING INDICATOR

55

ESTIMATING GUIDE FOR A GABLE TO GABLE ROOF

54

IMPORTANT• Remember: if you are refurbishing, you must ensure that existing timbers have sufficient strength to support new

roofing material. Additional timbers may be required and specialist advice should be sought before work is carried out.

• Please ensure adequate mechanical fixing of the slate or tile. Specialist advice can be sought from the supplier.

• In normal circumstances all products must be fixed in accordance with BS 5534 2003 and always in accordance withthe manufacturer’s instructions.

• Any Jewson branch will supply you with the contact details of the manufacturer and inform you of the information themanufacturer would require in order for them to produce a fixing specification for the roof works for your building.

Rafter

Pitch (Angle)

Rise

Run Run

PITCH RISE RAFTER HIP/VALLEY12.5 0.22 1.02 1.43

15 0.27 1.04 1.44

17.5 0.32 1.05 1.45

20 0.36 1.06 1.46

22.5 0.41 1.08 1.47

25 0.47 1.10 1.49

27.5 0.52 1.13 1.51

30 0.58 1.15 1.53

32.5 0.64 1.19 1.55

35 0.70 1.22 1.58

37.5 0.77 1.26 1.61

40 0.84 1.31 1.64

42.5 0.92 1.36 1.69

45 1.00 1.41 1.73

47.5 1.09 1.48 1.79

50 1.19 1.56 1.85

Rafter

The table below can be used to calculate the length of the rise, hip or valley on a pitched roof.

Using this table:• Identify the pitch of the roof• Read across the table to find the calculation factor for the measurement you require

i.e. rise, rafter or hip/valley• Multiply this factor by the run

Example 1To find the rafter length on a roof with a 22.5º pitch and a run (or half span) of 4.8m:4.8m x 1.08 (factor from table) = 5.18m rafter length

Example 2To find the hip/valley length on a roof (or half span) of 7m:7m x 1.53 (factor from table) = 10.71m hip/valley length

You will need four items namely:

• 1m x 10mm fascia vent. Simply divide the total eaves length of the roof by 1m to give you the numberof fascia vents required.

• 6m roll form eaves vent. Simply divide the total eaves length of the roof by 6 to give you the number of roll form eaves vent required.

• 1m eaves protector/felt support tray. This product performs a dual function of protecting the felt fromexposure to the elements and simultaneously allowing the felt to remain supported. Divide your eavesmeasurement by 1m to give you the number of eaves protectors required.

• 1m comb filler. This is needed on profile tiles to prevent birds/vermin from entering the roof space. Divide the eaves measurement by 1m to give you the number of comb fillers required. See page 33 forfurther information on low-level eaves ventilation.

CALCULATING BASIC EAVES TO EAVES ROOF VENTILATION (Low level)

In roofs over 35˚ and/or 10m span, it is necessary under current regulations to introduce an airflow into the building at eaves low level. It is, however, necessary to allow the exit of that airflow at the ridge i.e. at high level. Jewson can supply various designs of ventilated ridge systems. Jewson can also supply ‘universalventilated ridge systems’ which can be used with most types of tile and/or slate product. See pages 34/35 forfurther information. Please note these systems still require the concrete/clay ridge tile.

Individual tile/slate vents can be purchased to introduce ventilation into irregular roof elevations. Soil and vent tiles/slates can also be purchased for mechanical extraction for kitchens and bathrooms.

CALCULATING RIDGE VENTILATION (High level)

This product is an actual standard tile made with a cloak as an allin one tile. Allow 1 unit per course of tiles up the after/verge.(These units will be sold as left/right hand units.)

CALCULATING CONCRETE CLOAKED VERGE UNITS

Documents

2442568 PDF Plc Roofing Guide