Fire Safe System
High Performance
Mastic Asphalt
Roof Garden
Single Ply

Mastic Asphalt

"Asphalt roofing properly designed and laid should be capable of lasting 50 to 60 years” Building Research Establishment - Digest issue No.144’.

Mastic Asphalt is one of the oldest waterproofing materials. Permaphalt is a specially formulated mastic asphalt roofing application, using advanced polymer technology to give the ideal combination of long term durability, increased fatigue resistance and improved temperature stability.

Permaphalt achieves a continuous waterproof covering over flat, sloped or curved surfaces. It can be worked round pipes, roof lights and other projections to provide a completely seam free membrane. Permaphalt is suitable for insulated warm roofs, un-insulated cold roofs and inverted/green roof configurations. The durability of polymer modified mastic asphalt makes it an ideal waterproof covering for areas subjected to regular foot traffic. Permaphalt polymer modified mastic asphalt is suitable for both intensive and extensive roof garden systems. Mastic asphalt is fully resistant to root penetration and does not require a separate root barrier.

Features and benefits

• Loss Prevention Certification Board (LPCB)
  Approved - Certificate No. 666a
• Fire Performance achieving BS 476: Part 3: FAA
• Completely seamless waterproofing
• Long term durability
• Enhanced product stability across a wide temperature range
• High fatigue resistance
• Manufactured in the UK under BS EN ISO 9001, Quality Assurance Scheme