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VapR-free
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.
VapR-free can be installed
without the need for roof space ventilation, and is
suitable for both Commercial and Domestic buildings, it is the ideal
roof underlay for Warm and Cold Pitched Roofs.
Manufactured without the use of CFC’s VapR-free 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 long life-span.
VapR-free membrane has
received BBA Approval and complies with BS5534-2003 Code of Practice
for slating and tiling and NFRCTB6. 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.
Technical Data: |
| Property |
Units |
Value |
| Weight |
g/m2+/-10 |
112 |
| Water Vapour Resistance |
Sd (M) |
c.0.02 |
| Water Vapour Transmission |
g/m2/24 hr |
1065 |
| Fire Rating |
- |
EN13501-1 |
| Exposure Times UV Degradation |
- |
3 months |
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