Vapour Control Layer Flat Roof

What is the difference between a vapour control layer and a breather membrane.

Vapour control layer flat roof.

A question for the experts. If you aren t sure which product is right for your project give our customer service team a call on. The notion behind a vapour control layer is to install it on the room. Vapour control layers vcl.

The type of 3 layer roof. Including fibreglass roof kits torch on felt and liquid rubber products everything you need for flat roofing is in one place. Vapour control layers vcls are an innovative way to manage the transition of moisture vapour and prevent unwanted air leakage. 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.

A vapour control layer or vcl on a warm flat roof sits between the roof decking and the insulation. 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. The flat roof has 2 roof lanterns. Bs6229 2003 gives advice on vapour control layers in flat roofs and the control of condensation within the building generally.

I have a 3 layer. I have been looking through insurance and they seem to ask about type of flat roofs. Time and time again i see the wrong vaper control layer being used and installed incorrectly. At roofing superstore our choice of flat roof materials includes everything you need to create a long lasting weather proof flat roof that performs and looks good too.

The level of vapour permeability required is defined in bs 5250 code of practice for control of condensation in buildings. Using a vapour control layer to control condensation. 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. 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.

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. Interstitial condensation can happen if warm air from inside th. Hi i m in the process of building a single story flat roof extension.