Vapour control layers vcl.
Tyvek flat roof vapour control layer.
A continuous layer of dupont airguard control reduces air leakage by providing an effective vapour control barrier to control air movement and moisture infiltration around the habitable space of the building.
Dupont tyvek airguard control is a tough transparent vapour control barrier that improves airtightness by reducing convective heat loss and air leakage while also minimising the risk of condensation in roof and wall insulation.
The design of tyvek airguard allows for faster evacuation of built in humidity in new construction elements.
Breather membranes are positioned to the outside of the insulation acting as a weather barrier while still allowing moisture particles to escape from the inside.
Using a tyvek underlay in conjunction with a suitable air vapour control layer avcl will fulfil all the requirements for weather protection condensation control and convective heat loss airtightness as well as meeting the requirement of approved document c2.
Tyvek airguard control vapour control layer 50mtr x 1 5mtr.
In flat roofing a tyvek roof membrane may only be used as a protection layer over insulation or as a separation layer between metal sheeting and a supporting deck.
Further information on internal air vapour control can be found on page 8.
Tyvek airguard smart is an innovative air and vapour control layer which protects structures against environmental damage by adapting to various moisture conditions and regulating the humidity in building elements.
A smarter way to buy building materials.
Vapour control layers are positioned to the inside of the insulation in order to minimise the amount of warm moist air entering the construction.
If the majority of the year is spent heating the home where the inside temperature is greater than the outside it is generally good to use a vapor retarder behind the interior drywall.
What is the difference between a non ventilated system and a sealed system.
Tyvek breathable roof membranes are suitable for non ventilated pitched roof applications only.
Including fibreglass roof kits torch on felt and liquid rubber products everything you need for flat roofing is in one place.
By controlling heat transfer and reflecting heat inside the building they help keep buildings cool in summer and warm in winter.
Using a tyvek weather barrier in combination with a vapor barrier depends on how the rest of the wall system is constructed and the climate the building is in.
Overview an airguard vapour control layer can significantly reduce heat loss and increase energy efficiency.
