A mechanically dry fixed interlocking main ridge cap that is easy to install, reducing installation time. Simply push into the next ridge section and screw into place. Dimensions: Length - 425mm (Coverage 400mm per ridge) Width - 245mm Height - 105mm. Envirotile is the most advanced roof tile available; affordable, high performing and environmentally friendly. Perfect for large scale roofs or porches, garages, sheds and conservatories The ridge caps are interlocking and fixed using the pre-drilled screw slot, we no need for sand and cement Based on the tile size, the Envirotile is cheaper per M2 then most other synthetic slates and roof shingles The hip caps measure 425mm in length and provide coverage of 400mm each Environmentally friendly - The plastic slates are made using recycled sustainable materials and manufactured in the UK, Manufacturer: Green Sustainable Products