Flat Roof Vapour Control Layer

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Flat roof vapour control layer.

A vapour control layer or vcl on a warm flat roof sits between the roof decking and the insulation. Vapour control layers should be provided to warm roofs and. We provide a vapour control layer for flat roof installations as well as heavy duty vapour control layers for a warm flat roof. Vapour control layers are positioned to the inside of the insulation in order to minimise the amount of warm moist air entering the.

A vapour control layer is designed to catch this vapour preventing it from condensing on the insulation or elsewhere in the loft space or attic. Vapour control layers vcl. Include at least one layer of bitumen roofing membrane s2p3 below the insulation fully bonded or mechanically fixed to the structural deck as appropriate or a suitable self adhesive or torch on membrane. The notion behind a vapour control layer is to install it on the room.

Vapour control layers vcls are an innovative way to manage the transition of moisture vapour and prevent unwanted air leakage. The answer to keeping timber framed walls and roofs dry is to use a layer to restrict the flow of moisture but not to try and stop it. Browse the links below to discover fantastic products such as ultrablock 200 thermo reflective vapour control layer monarflex monarfilament 250 vb and much more. What is the difference between a vapour control layer and a breather membrane.

Using a vapour control layer to control condensation. Bs6229 2003 gives advice on vapour control layers in flat roofs and the control of condensation within the building generally. Including fibreglass roof kits torch on felt and liquid rubber products everything you need for flat roofing is in one place. We use cookies to enhance your experience.

Vapour control layers. A vapour control layer helps you shield your building from the consequences of condensation condensation is generated when warm moist air rises and condenses into a liquid on contact with the cooler areas above the insulation. The vapour control layer vcl often overlooked underrated punctured adlib and sometimes even completely omitted mainly because we re just not sure if it really is all it s cracked up to be after all even if we leave it out altogether the roof shouldn t leak right. In this case you need to lay a full vapour barrier on top of your flat roof deck before you lay the insulation and your flat roof covering.