Key Features: Lightweight & Cost-Effective: Uses 43% less stone, reducing roof weight and material costs without compromising strength or durability. Low Pitch Capability: Certified waterproof at pitches as low as 17.5° (tested to BS PD CEN/TR 15601 standards). Simplified Installation: Utilises only three tile widths (300mm, 450mm, and 600mm), all 450mm long, making it easy to achieve a traditional broken bond pattern. Single Lap Design: Eliminates the need for large, heavy stones and significantly reduces installation time and skill requirements. Fire-Resistant Backing: Each tile is made from premium natural limestone bonded to a fire-resistant GRP (glass reinforced plastic) plate that replaces the lower double lap layers of conventional roofs. Head lap Below 30 degrees – 100mm minimum lap / 350mm gauge - order 10% extra Above 30 degrees – 80mm minimum lap / 370mm gauge - order 5% extra The Mayan Armoured stone roofing system is a breakthrough in natural stone roofing, combining timeless aesthetics with modern performance. Its patented design allows natural stone roofs to be installed on pitches as low as 17.5° — a significant improvement over traditional systems that typically require a minimum pitch of 35°. Armoured stone faithfully replicates the appearance of heritage stone roofing, available in a natural beige tone for seamless visual integration. The system is also compatible with reclaimed or recycled stone for conservation and restoration projects. Advanced Waterproofing Integrated Water Bar: Precisely positions each tile for fast, accurate installation. Extended Side Lap: Ensures a secure fit between neighbouring tiles. EPDM Sealing System: Dual EPDM tape strips create a permanent, watertight seal. Downloads & Data Sheets: Armoured Slate Fitting Instructions
