Roofing Materials
303 sources in the library on roofing materials, 40 on this page cited in a published note. Each one says what the document covers and what it is good for. Name a source to see which document it is and where to read it. One at a time. Page 3 of 8.
- supplier figure RN-HMVFTO cited
Cupa Pizarras
A slate producer's technical FAQ summarising NHBC Standards 7.2.19 and BS 5534: natural slate can go down to 20° subject to headlap. Used because the NHBC and BSI texts cannot be fetched.
Cited in Slate Roof Tiles: Types, Cost & Lifespan.
- supplier figure RN-OFQU31 cited
Elliotts
A builders' merchant's product page for a 4.8 m kiln dried sawn treated 38 x 50 mm batten, priced at £2.34 per metre including VAT.
Cited in Roofing Battens & Felt: Spec & Cost.
- supplier figure RN-TJ4O5U cited
FAKRO
FAKRO's product page for a special flashing used with low-pitch roof coverings of 10 degrees or more, which raises the window's installation angle by a further 10 degrees.
- supplier figure RN-IPQ80H cited
Forestrall Timber Merchants
A timber merchant's product page for a 4.8 m treated sawn 38 x 50 mm batten at £8.93 including VAT, about £1.86 per metre.
Cited in Roofing Battens & Felt: Spec & Cost.
- supplier figure RN-PEXH1A cited
Fort Builders Merchant
A builders' merchant's roofing felt listing giving a 15 m x 1 m roll of 1F slaters underfelt at £53.60 including VAT, about £3.57 per m².
Cited in Roofing Battens & Felt: Spec & Cost.
- supplier figure RN-LEAWAJ cited
Freefoam
Freefoam's full replacement fascia range page, listing its 18 mm full replacement boards. It is a maker's product fact supporting the typical thickness of a full replacement uPVC fascia.
Cited in Barge Boards, Fascias & Soffits: Cost & Replacement.
- supplier figure RN-BBH7EE cited
Freefoam
Freefoam's guarantee page for its fascia, soffit and gutter products. It confirms a standard 20-year guarantee on its roofline range, showing guarantees of 10–15 years understate what a major maker offers.
Cited in Barge Boards, Fascias & Soffits: Cost & Replacement.
- supplier figure RN-LZPIH4 cited
Glazing Vision
A rooflight maker's product page for its walk-on rooflights. It states they use toughened and laminated glass engineered for domestic foot traffic.
- supplier figure RN-TOQO0B cited
IKO (data sheet hosted by Roofing Megastore)
IKO's technical data sheet for its bitumen undertile felt, formerly sold as BS 747 type 1F. It gives a 15 m x 1 m roll weighing 23.5 kg, about 1.5 kg per square metre.
Cited in Roofing Battens & Felt: Spec & Cost.
- supplier figure RN-J40NYZ cited
JJ Roofing Supplies
A roofing merchant's product page for prime-grade Brazilian slate at 500 x 250 mm, priced at £2.27 each including VAT (£1.89 ex VAT), which is about £45/m² at 20 slates per m².
Cited in Slate Roof Tiles: Types, Cost & Lifespan.
- supplier figure RN-2W8HQI cited
JJ Roofing Supplies
A roofing merchant's product page for SSQ Del Carmen first-grade Spanish slate, priced from £5.14 a slate including VAT, the basis for the premium Spanish supply price of up to about £100/m².
Cited in Slate Roof Tiles: Types, Cost & Lifespan.
- supplier figure RN-KLAX7C cited
JJ Roofing Supplies
the retail price JJ Roofing Supplies publishes for Velux GGL Centre Pivot Pine Roof Window, which is the supply figure the cost book records for this item
- supplier figure RN-RU890O cited
Joe Thornton, Master Thatcher
A master thatcher's own FAQ page explaining how thatchers price work: thatch by the 10 ft square and ridging by the linear foot, with materials and overheads included.
Cited in Thatched Roof Cost: 2026 UK Price Guide.
- supplier figure RN-I1EE5H cited
Kingspan Insulation
Rigid thermoset phenolic (PF) board to BS EN 13166: 2012 + A2: 2016, faced both sides with a low emissivity composite foil. Declared thermal conductivity 0.019 W/mK. Declared compressive strength 100 kPa to BS EN 826: 2013. Standard board 2.4 m x 1.2 m. BBA Certificate 16/5299 covers thicknesses 25 to 150 mm, made at Pembridge, Herefordshire. Published R-values (m2K/W): 25 mm 1.30, 40 mm 2.10, 50 mm 2.60, 60 mm 3.15, 70 mm 3.65, 75 mm 3.90, 80 mm 4.20, 90 mm 4.70, 100 mm 5.25, 110 mm 5.75. Fire: under System 4 AVCP, K107 has a Euroclass rating of F.
- supplier figure RN-XNISDS cited
Kingspan Insulation
Kingspan's product page for its Thermaroof TR27 PIR flat roof board gives a thermal conductivity as low as 0.024 W/mK, the figure the 140–150 mm thickness for 0.15 W/m2K is worked from.
Cited in Flat Roof Materials: EPDM vs GRP vs Felt.
- supplier figure RN-NG2GXB cited
Lawsons
A builders' merchant product page for one 1.5 x 50 m roll of BBA-certified 115 g breather underslating membrane, priced £81.97 including VAT and £68.31 excluding VAT.
Cited in Roofing Battens & Felt: Spec & Cost.
- supplier figure RN-74U4UK cited
Lawsons
A timber and builders' merchant product page for a single 4.2 m BS 5534 graded treated 25 x 50 mm roofing batten, priced £6.52 including VAT and £5.43 excluding VAT.
Cited in Roofing Battens & Felt: Spec & Cost.
- supplier figure RN-FTI45W cited
Lawsons
A builders' merchant product page for the standard Velux tile flashing for an MK04 window, with its underfelt collar, priced at £121.38 including VAT, within the stated band.
- supplier figure RN-N11KIC cited
Marley
A roof tile maker's guide to dry verge systems. It explains why mortar verges deteriorate and how clip-on dry verge units replace them.
Cited in Roof Tiles & Slates: Coverage, Fixings & Ventilation.
- supplier figure RN-4LOQLT cited
Marley
Marley's explainer on BS 5534, the code of practice for slating and tiling: the 2015 amendments requiring mechanical fixing of single-lap, ridge and hip tiles regardless of mortar, double fixing at the perimeter, higher assumed wind loads, and the rise of dry-fix systems.
Cited in Clay vs Concrete Roof Tiles: Cost, Lifespan & Looks, Roofing Battens & Felt: Spec & Cost.
- supplier figure RN-55TEPR cited
Marley
Marley's clay plain tile technical data: 265 x 165 mm tiles cover at 60 tiles per square metre at a 100 mm gauge.
Cited in Clay vs Concrete Roof Tiles: Cost, Lifespan & Looks.
- supplier figure RN-4XC0IS cited
Marley
Marley's concrete plain tile page: 267 x 168 mm tile, 35 degree minimum pitch, 60 tiles per square metre and 73.8 kg per square metre at 100 mm gauge.
Cited in Clay vs Concrete Roof Tiles: Cost, Lifespan & Looks.
- supplier figure RN-8OEN9K cited
Marley
Marley's guide to BS 5534 batten sizes. It sets out how batten size depends on rafter span and the type of covering, following BS 5534 Table 3.
- supplier figure RN-FFC1E7 cited
Marley
Marley's technical answer on cold-roof ventilation under BS 5250. It gives 25 mm or 10 mm eaves gaps with an HR underlay, 5 mm at high level on steep, wide or mono-pitch roofs, and the 3 mm option with an LR underlay.
Cited in Roofing Battens & Felt: Spec & Cost.
- supplier figure RN-A8V4ES cited
Marley
Marley's installation guide for roofing battens. It summarises what BS 5534 sets for battens and gives batten nail guidance: galvanised wire, 65 mm long, at least 3.35 mm diameter, 40 mm into the rafter.
Cited in Roofing Battens & Felt: Spec & Cost.
- supplier figure RN-NWAV3B cited
Marley
Marley's Ludlow Major concrete interlocking tile data gives a weight of tiling of 45 kg per square metre at 75 mm head lap and 49 kg at 100 mm.
Cited in Clay vs Concrete Roof Tiles: Cost, Lifespan & Looks.
- supplier figure RN-2AYTTB cited
Marley
Marley's guide to setting out tile battens. It explains that the batten gauge for variable-gauge single-lap tiles must not exceed the maker's maximum, which depends on a 75–100 mm headlap set by pitch.
Cited in Roofing Battens & Felt: Spec & Cost.
- supplier figure RN-GG1W7L cited
Marley
Marley's product page for its universal dry ridge kit. It lists the components (ridge roll, batten brackets, ridge unions and clamps, stainless steel screws) and states 5 mm continuous ridge ventilation.
Cited in Ridge Tiles & Dry Ridge Systems.
- supplier figure RN-ZAETTP cited
Marley
Marley's technical note on laying its concrete tiles at low pitch. It gives the minimum rated pitch for each of its interlocking tiles and explains what a roof below the recommended pitch needs instead.
Cited in Clay vs Concrete Roof Tiles: Cost, Lifespan & Looks.
- supplier figure RN-8QKBLY cited
Marley Ltd
Marley Acme single camber clay plain tile: 265mm x 165mm, cover width 165mm nominal. Minimum pitch 30 degrees, maximum 90 degrees. Minimum headlap 65mm on a roof, 35mm vertical tiling. Maximum gauge 100mm roof, 115mm vertical. Covering capacity 60 tiles/m2 at 100mm gauge on a roof, 53 tiles/m2 at 115mm gauge vertical. Weight of tiling 64kg/m2 (0.63 kN/m2) at 100mm gauge roof, 56kg/m2 (0.55 kN/m2) at 115mm gauge vertical. Battens 10.0 lin.m/m2 at 100mm gauge roof, 8.7 lin.m/m2 vertical; batten 38 x 25mm to 600mm rafter centres. Tile nails 38mm x 2.65mm.
Cited in Roof Tiles & Slates: Coverage, Fixings & Ventilation.
- supplier figure RN-F2JJQY cited
Marley Ltd
JB Red roofing batten: available in 25 x 38mm and 25 x 50mm sections only, factory graded in the UK to BS 5534 using laser (Goldeneye) scanning, and described as the only UK factory-graded roof batten holding BBA certification. Produced from slow-grown kiln-dried sideboards. Treated with MicroPro preservative complying with BS 8417:2011 Use Class 2, carrying a 60-year desired service life.
- supplier figure RN-MQ1XYA cited
Marley Ltd
Marley Modern flat interlocking concrete tile: size 420mm x 330mm, cover width 292mm nominal, hanging length 397mm. Minimum pitch 22.5 degrees smooth finish at 75mm headlap, 17.5 degrees smooth at 100mm headlap, 30 degrees granular at 75mm headlap, 25 degrees granular at 100mm headlap; maximum pitch 90 degrees. Minimum headlap 75mm at 22.5 degrees and above, maximum gauge 345mm. Covering capacity 9.9 tiles/m2 at 75mm headlap, 10.7 tiles/m2 at 100mm headlap. Weight of tiling 50kg/m2 (0.49 kN/m2) at 75mm headlap, 54kg/m2 (0.53 kN/m2) at 100mm headlap. Battens 2.9 lin.m/m2 at 75mm headlap, 3.1 at 100mm; batten size 38 x 25mm to 450mm rafter centres, 50 x 25mm to 600mm centres. Tile nails 50mm x 3.35mm.
Cited in Clay vs Concrete Roof Tiles: Cost, Lifespan & Looks, Natural Slate vs Fibre-Cement Slate, Roof Tiles & Slates: Coverage, Fixings & Ventilation.
- supplier figure RN-M82LC7 cited
Roofing Outlet
A roofing merchant's product page for the standard Velux MK04 manual centre-pivot window with laminated double glazing, priced at £414 including VAT, supply only.
- supplier figure RN-JKKXDP cited
Roofing Superstore
Roofing Superstore's single product page for Filon's 400 mm × 3 m GRP valley trough, listed at £25.00 including VAT.
Cited in Lead Flashing & Alternatives Explained.
- supplier figure RN-7VDWSM cited
Screwfix
A national trade retailer's product page for a 1 kg pack of galvanised 2.65 x 40 mm clout nails (about 570 nails), priced £9.98 including VAT.
Cited in Roofing Battens & Felt: Spec & Cost.
- supplier figure RN-5EVKJ2 cited
SOPREMA UK (Celotex)
PIR insulation board with aluminium foil facings on both sides, boards 2400 x 1200 mm. Declared thermal conductivity (lambda D) 0.022 W/mK. Thickness range 50 mm to 100 mm. Compressive strength 140 kPa. BBA Certificate 25/7318 covers pitched roof, dry lining and floor insulation. Fire: SOPRATHERM GA4000 achieves a reaction to fire classification of Euroclass F in accordance with BS EN 13501-1.
Cited in External Wall Insulation (EWI) Systems & Finishes, Floor Insulation Materials & Build-ups, Loft Insulation Guide: Types, Costs & Recommended Depth.
- supplier figure RN-56WMUX cited
The Roof Shop
A roofing retailer's product page listing a 15 m x 1 m roll of 1F undertile felt at £45.06 including VAT, about £3.00 per m².
Cited in Roofing Battens & Felt: Spec & Cost.
- supplier figure RN-TOS2R5 cited
Thermafleece (Eden Renewable Innovations Ltd)
High density sheep wool rich insulation slab, 75% wool with recycled fibres, 20 to 25% recycled content. Density 31 kg/m3. Thermal conductivity 0.035 W/mK. Slabs 1200 mm long in 390 and 590 mm widths, thicknesses 50, 70 and 90 mm with a plus or minus 5 mm tolerance. Published thermal resistance (m2K/W): 50 mm 1.43, 70 mm 2.00, 100 mm 2.86, 140 mm 4.00, 190 mm 5.43, 240 mm 6.86. Fire Classification EuroClass E; flammability and smoulder resistance to BS 5803-4 pass. Vapour resistivity 9 MNs/gm. Specific heat capacity 1800 J/kgK. Water absorption at 100% RH 24% w/w. Sound reduction Rw 41 dB, NRC 1.10 at 90 mm. Dimensional stability to EN 1604 pass, EPD registration S-P-04468. Cradle to gate A1-A3 carbon 0.05 kg CO2e per functional unit. Thermafleece states UltraWool is not suitable for use as a cavity barrier.
Cited in Best Loft Insulation: Materials Compared, Loft Insulation Guide: Types, Costs & Recommended Depth.
- supplier figure RN-GKKVOG cited
Toolstation
Toolstation's product page for a 150 mm × 10 m roll of Bostik Flashband at £16.99, which works out at about £1.70 a metre.
Cited in Lead Flashing & Alternatives Explained.
- supplier figure RN-JVWK11 cited
Ubbink
Ubbink's page on its Ubiflex non-lead flashings. It states the products are up to 80% lighter than lead and have no scrap value, which reduces the risk of theft.
Cited in Lead Flashing & Alternatives Explained.