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VAPOUR SHIELD
Vapour control layer for roofs
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Vapour Shield is a tear resistant polyethylene vapour barrier layer with one side that is white and one side that is black and can be laid either side up.
Product Specifications
Vapour Shield comes in one roll size:
SKU | Size | Coverage |
---|---|---|
VS2130100 | 2130mm wide x 47m long | 100m2 |
Vapour Shield is intended for use as a vapour barrier ideally for skillion roof construction where condensation and moisture vapour control are required behind internal cladding. It is laid as a waterproof membrane until the roof is fixed, after which it acts as a vapour barrier layer during its serviceable life.
Where a vapour barrier is installed, its location within the built element is critical - for typical habitable spaces, it must be on the warm side of the element. Incorrect locating a vapour barrier is likely to cause more problems than it solves. When located on the cold side of a building element, the risk of condensation forming on the vapour barrier significantly increases.
To perform effectively, a vapour barrier must also be airtight as typically airflows carry moisture at a much greater rate than diffusion, which. would undermine the effectiveness of the vapour barrier.
Vapour Shield is not water vapour permeable and so must only be used in buildings with adequate means of ventilation, moisture and condensation control. This must be taken into careful consideration at the design stage.
Thermakraft. Vapour Shield will meet the performance requirements of NZBC Clause B2 Durability (B2.3.1.a 50 years), and B2.3.1b 15 years, E2 External Moisture provided the product is:
* Roff cladding system compatibility testing must be done first before installation.
Standard Thermakraft warranty applies. Refer to Thermakraft Warranty Statement for further details. This item is available online here or call 0800 806 595.
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