Radmat Building Materials, a dedicated manufacturing and distribution firm in the building materials sector, specialises in providing high-quality roofing and waterproofing solutions. Our product range is meticulously crafted to meet and exceed industry standards, ensuring quality and reliability. From exceptional customer service to streamlined supply chain management, our commitment is unwavering, guaranteeing efficient delivery of market-leading solutions known for their durability and performance. Moreover, we extend our services to include dropshipping for retailers and bespoke cut-to-size solutions for EPDM, plastic roofing, and glazing materials, further catering to diverse project needs.
Welcome to the Radmat Building Materials FAQ page.
Here you'll find answers to the most common questions we receive about our products.
Our goal is to provide you with a comprehensive resource that helps you better understand our products. Whether you're a contractor, architect, or homeowner, this page is designed to give you the information you need to make informed decisions for your projects.
If you can't find the answer you're looking for, please don't hesitate to contact us directly.
Frequently Asked Questions
Bitumen Corrugated Roofing Sheets
Solstice Corrugated Roofing Sheets
3in ASB Corrugated Roofing Sheets
Multiwall Polycarbonate Sheets
• Material: Bitumen-impregnated fibre sheets
• Thickness: 2.2mm (±10%)
• Sheet Dimensions: 2000mm x 930mm
• Corrugation Height: 36mm (±6%)
• Corrugation Pitch: 93mm (±3%)
• Weight: 2.7kg/m² (±10%)
• Bitumen Content: Minimum 40%
• Water Absorption: Max 20%
• Reaction to Fire: Class E (EN 13501-1)
• Thermal Coefficient: Max 10x10⁻⁶ 1/K
• Impact Strength: Pass (250mm drop test)
• Tearing Strength: Min 150N
• Water Impermeability: Pass (48-hour test)
These sheets are ideal for garden sheds, outbuildings, garages, carports, stables, and timber structures. Their lightweight yet robust design makes them a practical choice for various roofing needs.
• Ensure the roof structure is clean and dry before installation.
• Overlap sheets by at least one corrugation to prevent leaks.
• Secure sheets using bitumen roofing nails, fixing at every second corrugation peak.
• Use ridge and edge pieces for complete watertightness.
Yes. The bitumen-impregnated fibres make them highly water-resistant, ensuring long-term protection against moisture.
Radmat offers Black, Green Red and Brown finishes with matching fixings and accessories, allowing customers to choose a finish that complements their structure.
With proper installation and maintenance, Radmat Bitumen Roofing Sheets provide years of reliable performance.