11 x 7's
Matching like with like can involve the use of 11"x7" clay roof tiles which are available in the Dreadnought Classic range of colours. English Heritage are keen that new rather than old 11" x 7" tiles are used to reduce theft from existing roofs.
Technical Info
Dreadnought Tiles conform to BS EN 1304:2013 and should be fixed in accordance with BS5534 "Slating and Tiling" part 1 & 2 and BS8000 Part 6.
Freeze Thaw Standards require plain clay tiles for use in the U.K. to withstand at least 150 freeze / thaw cycles under method E of European Standard EN 539-2:2013. At Dreadnought Tiles we regard this as too low for our climate and we therefore test our tiles to withstand in excess of 400 cycles.
Download Freeze Thaw Testing Report
Download Specification Word Doc
| Tiles | Eaves | Gable | |
| Size | 277 x 177 mm | 215 x 177 mm | 277 x 268 mm |
| Weight | 1.74 kg | 1.37 kg | 2.6 kg |
| Pattern | Handmade | ||
| Material | Etruria Marl | Etruria Marl | Etruria Marl |
| Pitched Roofs | Vertical | |
| Minimum Lap | 65 mm | 32 mm |
| Maximum Gauge | 100 mm | 115 mm |
| Approx Weight at Maximum Gauge |
90 kg/m2 | 79.5 kg/m2 |
| Nails | 38 x 2.65 mm alloy | 38 x 2.65 mm alloy |
| Battens | 38 x 25 mm | 38 x 25 mm |
| Minimum Pitch | 35 degree |
Quantity Guide
| Tiles @ 100mm Gauge | 57 per m2 |
| 115mm Gauge | 50 per m2 |
| Eaves/Tops | 6/lineal metre |
| Gable (Tile and Half) | 5/lineal metre of verge |
| Hips and Valleys | 10/lineal metre of main rafter |
| Ridges | Supplied in 300 mm and 450 mm lengths |
Relevant Fixing Standards
| BS 5534 2014 | Code of Practice for Slating and Tiling |
| BS 8000-6.2013 | Workmanship on Building Sites |
| BS EN 1991-1-4:2005+A1:2010 | UK National Annex to Eurocode 1 -Actions on Structures - Part 1-4: General actions - wind actions |
Environmental Info
Place of Manufacture: Brierley Hill, UK
Environmental Management: ISO 14001 Download Certificate
Quality Management: ISO 9001 Download Certificate
Life Cycle: BRE 'A+' rating
Freeze Thaw Testing to in excess of 400 cycles Download Freeze Thaw Test Certificate >>
Energy: Fired in gas kilns to 1130 degrees
Raw materials: Etruria Marl Clay from our local quarry in Brierley Hill, sand
Lifespan: > 60 years. Second hand tiles that have been on roofs in excess of 100 years often sell for more than new tiles on the 2nd hand market
Recyclability: Can be crushed and used as aggregate and/or as an inert bulk fill
Packaging: We keep packaging to a minimum using wooden pallets. We do not shrink wrap or use plastic straps.
Find out more about Dreadnought Tiles approach to sustainability
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