Difference between revisions of "Template:All systems - VAPOUR RETARDERS"

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Difference between revisions of "Template:All systems - VAPOUR RETARDERS"

(Vapour Retarder Design for High-Humidity Building Interiors)
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<div class="principles">The decision to use, and the selection of, an air/vapour retarder is the responsibility of the design authority.  Neither RGC nor the roofing contractor will accept any responsibility for damage to, or failure of, the roof system caused by the use or absence of a vapour retarder.</div>
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<div class="principles">The decision to use, and the selection of, an air/vapour retarder is the responsibility of the design authority.  Neither the '''''RoofStar Guarantee Program''''' nor the roofing contractor will accept any responsibility for damage to, or failure of, the roof system caused by the use or absence of a vapour retarder.</div>
  
 
==== Vapour Retarder Design for High-Humidity Building Interiors ====
 
==== Vapour Retarder Design for High-Humidity Building Interiors ====

Revision as of 18:18, 17 October 2016

The decision to use, and the selection of, an air/vapour retarder is the responsibility of the design authority. Neither the RoofStar Guarantee Program nor the roofing contractor will accept any responsibility for damage to, or failure of, the roof system caused by the use or absence of a vapour retarder.

Vapour Retarder Design for High-Humidity Building Interiors

Vapour retarders for high humidity facilities should have a perm rating as close to zero as possible, be durable, multi-layer membranes that are effective in preventing vapour drive into the roof systems from the interior of high humidity environments.

Thin, lightweight, single-layer vapour retarders are prone to damage during installation of roof assemblies and are therefore not recommended for use over high humidity building interiors.