New air testing rules require the elimination of drafts completely. A cold non-vented roof space using breather membranes can be up to 25% more energy efficient than the traditional vented roof space. This means that a cold non-vented roof is now an important design element. Forthcoming regulations will also insist that the thermal bridge, which occurs over the wall plate at eaves level, is addressed and this is best achieved again using the cold non-vented system.
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Permavent offers the most competitive walling membranes in the UK. We have recently launched Safeshield XT Reflect, our A2 Fire Rated membrane with a proficient W1 head of water resistance and superior UV and thermal performance. It marks the first launch of a range of quality walling membranes which will be launched over the coming months.
Permavent APEX is both an air and vapour permeable membrane for use as a pitched roof underlay. Permavent APEX is a 3 layer breather membrane for use as a pitched roof underlay. Permanent APEX is a vapour and air permeable membrane providing unique condensation control which eliminates the need for low or high level ventilation.
Permavent RED is a heavy-duty vapour-permeable roof membrane, which has gained the trust of roofing contractors all around the UK. A resilient roofing underlay, tailored for long-term roofing projects with a UV stability of 3 months. A superior water-resistance (W1), provides a flexible design solution in pitched roofs and walls; for new-build, commercial or refurbishment projects.
Permavent MAX ALL ZONES enjoys a long-term legacy within UK Construction and has been supported by roofing applicators for more than a decade. A popular product within the Permavent Portfolio, MAX ALL ZONES is a vapour-permeable membrane, providing flexible installation benefits in-line with the requirements of BS5534:2014+A2:2018.
The preferred roofing underlay for many national housebuilders and supported by a number of the UK's largest roofing contractors, Permavent Graphite is a high-performance and competitive vapour-permeable membrane. Graphite is a versatile secondary waterproofing barrier, which can be specified and installed UK-wide in accordance with BS5534:2014+A2:2018.
Reviews (1)
Andrew Philbey
Apr 14, 2018
