Duo Modern interlocking tile is designed to look like and blend in with the small format slates found in many regions.
- Mock-bond for a small format appearance
- Excellent covering capacity
- Can achieve an A+ rating in the BRE Green Guide to Specification
- Certified Excellent for BES 6001
All of our concrete interlocking tiles can achieve an 'A+' rating (which has the lowest environmental impact) in the Building Research Establishment's Green Guide to Specification. Accreditation to the BES 6001 framework standard for 'Responsible Sourcing' means that projects using our concrete interlocking slates can now achieve extra credits under BREEAM and the Home Quality Mark (HQM). Click here to find out more.
Size of Tile 420mm x 330mm
Minimum Pitch 22.5° Smooth (75mm headlap) 17.5° Smooth (100mm headlap) 30° Granular (75mm headlap) 25° Granular (100mm headlap)
Maximum Pitch 90°
Minimum Headlap 75mm
Maximum Gauge 345mm
Cover Width 292mm (nominal)
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 Required 2.9 lin.m/m² at 75mm headlap 3.1 lin.m/m² at 100mm headlap
Batten Size Recommended 38x 25mm for rafters/supports not exceeding 450mm centres 50 x 25mm for rafters/supports not exceeding 600mm centres
Tile Nails 50mm x 3.35mm
Hanging length 397mm (nominal)
The effectiveness of the tile or slate to operate at the minimum recommended pitch and lap may be influenced by special circumstances. Guidance on pitch and lap should be obtained from the Technical Advisory Service for the following:
Interlocking tiles and slates where the roof slope exceeds 6 metres in length and/or the site is rated to be in a severe exposure category. Double-lap fibre cement slates where the roof slope exceeds 6 metres in length (severe/very severe exposure) and 9 metres in length (sheltered/moderate exposure).