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June 25th, 2015

Dupont Tyvek airtightness

Eco building systems supply a range of Tyvek products aimed at providing both airtightness from the inside and breathable layer on the outside. The Airtightness membrane is called Dupont Tyvek airguard reflective, this 75m2 membrane is 100% airtight and helps reduce the risk of interstitial condensation by reflecting convective heat back into the rooms of the building. Below is a photo of a house we recently supplied our Tyvek products and on the roof you will notice the Tyvek Supro roof membrane. This membrane is airtight yet vapour permeable and will help protect against wind and rain penetration. It can be used on both supported and unsupported pitched roofs and doesn’t need any soffit, tile or ridge ventilation. We also stock the Tyvek metallised tape which is used in conjunction with the other Tyvek membranes, this tape’s adhesive properties become stronger with time and is used to seal overlaps in membranes, pipe penetrations and around windows and doors. This durable and waterproof tape is ideal for the majority of applications but from the photo below you will notice the Tyvek reflex breathable membrane. This material helps to improve the thermal efficiency of the buildings by reflecting radiant heat in the summer and reducing convective heat loss in the winter.

 

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