Perforated Venting Base Layer
Chesterplus 3H is a perforated pour and roll membrane which offers vapour dispersement prior to fitting the second and third waterproofing layers. It features a glass fibre core which is saturated and coated in high quality bitumen, and has a light sand finish.
When incorporated in a suitably designed and installed multi-layer system, maintained in accordance with BS 8217:2005 – Reinforced bitumen membranes for roofing, Chesterplus 3H will provide reliable performance.
Key Features & Benefits:
• Vapour disperse layer
• Integral part of built-up flat roofing system
• Simple, loose-laid application