Vapour control layer warm roof

Condensation is formed when warm moist air rises and condenses into a. Be it a cold or warm roof construction, the primary function of a VCL is to keep . WARM ROOF WITH SELF-ADHESIVE VAPOUR CONTROL LAYER. A warm roof has the insulation above the structural deck, which is thus kept warm. The waterproof covering is above the insulation and a vapour control layer is .

In a warm pitched roof construction the thermal Insulation is placed in the rafter line. Warm roof constructions have the benefit of a. In a warm roof construction the principal insulation layer is placed. The buildup of a warm flat roof starts with a good vapour barrier followed by insulation then more decking or. The Mechanically Fixed Warm Deck Can Be Installed As Follows: Roof Deck - Minimum 18mm ply or OSBdeck. New vapour barrier or existing felt membrane.

Read this article to learn why the vapour control layer or VCL is essential in the construction of a flat roof.

When incorporated in warm deck flat roof. Hi, I have a warm flat roof (with a vapour barrier and insulation above that) on my new extension. No additional vapour control layer required.

Flat roof construction - thermal design and condensation. It is necessary to incorporate a vapour control layer beneath the insulation in order to prevent . I used PIR (non foil faced) glued direct to OSBand went with no VCL on the underside - the upper layers of the build-up are non hygroscopic, . Buy a vapour control layer to catch condensation from Roofing Supplies UK. Take a look at our vapour control layers for flat roof projects. Alternatively metalized polyester lined plasterboard can be used.

In flat roof construction thermal insulation can be placed above and. A vapour layer should be positioned under the insulation . Vapour control layer for a warm roof. A VCL is usually positioned just behind . The cold deck roof as shown above has the insulation at ceiling level and.

Aluminium Core - gives an increased resistance . The warm air inside a heated building will contain a lot of moisture in the form of water.

The job of a vapour control layer , or VCL, reduces the water vapour transfer. Traditionally, domestic flat roofs use two or more built up layers of bituminous felt as. Insulating at ceiling level within the roof space is the easiest.

Fit first layer of insulation between the joists. Product information on vapour control layer accessories available for use with. One of the most common problems now found with flat roofs is with the risk of condensation. Interstitial condensation : - Can all flat roofs be treated in the same way ? Self -adhesive, bituminous vapour control layer for warm roof constructions. Our premium specification reinforced foil vapour barrier.

The components of a flat roof include traffic or loadbearing materials, single-ply membrane, thermal insulation, vapour control layer ,structural deck and a . The thermal insulation of flat roofs is a particularly important issue both in. Plywood-OSB-Board vapour - control - layer Butyl-Tape helical-fixing . Self-protected SBS bitumen waterproofing system high tensile fixed mechanically from the SOPREMIUM range of SOPREMA group. As warm , moist internal air permeates through the external envelope of a. To prevent this, vapour control layers (VCL) or vapour barriers are.

For use as a self-adhered vapour barrier in Alumasc warm roof Thermo-activation . Specially suited for warm flat roofs , where very high concentrations of moisture vapour need to be controlled. Novia STRP Pro is particularly suitable for use in .