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Isover presents air and moisture management membrane at Ecobulid 2008 |
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Monday, 28 January 2008 |
Isover Saint-Gobain, the worlds leading manufacturer and innovator in mineral
wool insulation, will be presenting its recently launched unique intelligent
climate membrane specifically developed for timber frame construction which
delivers exceptional benefits for air leakage control, moisture management and
protection against toxic fumes, and is designed as a complete system to deliver
ease of installation.
Based on polyamide rather than polyethylene as conventional vapour
barriers are, the Vario climate membrane intelligently adapts to changing
climatic conditions. The Vario climate membrane acts like human skin. In the
winter, when relative humidity and temperature reduce, the micropores of the
membrane close, preventing vapour from the warm interior diffusing into the
timber structure and so protecting against potentially damaging interstitial
condensation. In the summer, when relative humidity and temperature increase,
the membranes micropores open, allowing vapour to escape and diffuse
harmlessly into the building interior.
The Vario system comprises purpose designed tapes and sealants as well as the
climate membrane. As a complete system, Vario
helps specifiers to meet and exceed the airtightness focus of Part L of the new
Building Regulations as well as the standards imposed by the Governments Code
for Sustainable Homes, reveals the companys press release. In air
leakage terms, the first UK trial showed just how effective the Vario system is
delivering 5.8m³/m²/hr @ 50P compared to acceptable market average of
10m³/m²/hr. In Europe where the system has been extensively used, it has
consistently achieved air leakage rates of less than 3m3/h/m2 defined as best
practice by the Energy Saving Trust.
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