Roofers Choice 170 is a multi layer laminate film composite made of polyolefin materials, resulting in a pitched roof underlay that has high vapour permeability but is also highly water resistant.
Roofers Choice 170 is suitable for both Commercial and Domestic buildings, it is the ideal roof underlay for Warm and Cold Pitched Roofs
Roofers Choice 170 membrane has recieved BBA Approval and complies with BS5534: 2014 Code of Practice for slating and tiling for pitched roofs.
Manufactured without the use of CFC’s Roofers Choice 170 is 100% recyclable and is very durable with high tensile and nail tear strength properties. These, coupled with excellent UV and heat stability properties ensure a life-span in excess of 30 years
Recommendations for the use of vapour permeable membranes in pitched roofs are contained in BS 5250 : 2002 ‘Code of practice for control of condensation in buildings’.
|Water Vapour Resistance||Sd (M)||c.0.02|
|Water Vapour Transmission ||g/m²/24hr||1065|
|Exposure Times UV Degradation||-||3 months|