Edgemere Interlocking tile


  • Installation and performance similar to a large format interlocking tile
  • Can achieve an A+ rating in the BRE Green Guide to Specification*
  • Accredited to the BES 6001 standard for responsible sourcing

Colours & Samples


Ashmore is a single lap, interlocking double plain tile. The hidden interlock offers ease and speed of installation and gives the appearance of traditional double lap plain tiles. Ashmore is designed to perform at pitches as low as 22.5° providing outstanding performance and versatility. With fewer tiles required to attain the traditional plain tile appearance, Ashmore is also highly cost-effective.

All of our concrete interlocking tiles can achieve an ‘A+’ rating (the lowest environmental impact) in the Building Research Establishment’s Green Guide to Specification (* element ref: 812410007, 812410018, 812410049).

Accreditation to the BES 6001 framework standard for ‘Responsible Sourcing’ means that projects using our concrete tiles can now achieve extra credits under BREEAM and the Home Quality Mark (HQM). Click here to find out more.


Technical info

Size of Tile 267 x 333mm
Minimum Pitch 22.5°
Maximum Pitch 90°
Minimum Headlap 77mm
Maximum Gauge 190mm
Cover Width 302mm
Covering Capacity 17.5 tiles/m² at 77mm headlap

19 tiles/m² at 92mm headlap

Weight of Tiling 48kg/m2 (0.47kN/m²) at 77mm headlap

52kg/m2 (0.51kN/m²) at 92mm headlap

Battens Required 5.3 lin.m/m² at 77mm headlap

5.8 lin.m/m² at 92mm headlap

Batten Size Recommended 38mm x 25mm for rafters/supports not exceeding 450mm centres

50mm x 25mm for rafters/supports not exceeding 600mm centres

Tile Nails 45mm x 3.35mm
Hanging length 235mm
Notes 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).
Nominal weight of roof tile fittings


Country of Production UK
Environmental Management 14001
Quality Management 9001
Health and Safety Management 18001
LCA study Can achieve an A+ rating in the BRE Green Guide to Specification
Energy Cured under conditions of elevated temperature
Raw materials Sand, cement, pigments, paints, recycled aggregates and binders
Lifespan > 60 years
Recyclability Can be crushed and used as aggregate and/or as an inert bulk fill
Embodied Carbon Rates
Measurement metric No per sq m Headlap / gauge M₂ conversion
KgCO₂e 17.5 77 11.375
KgCO₂e 19 92 12.35