Warm Deck Flat Roof Insulation

The solution warm deck insulation.

Warm deck flat roof insulation.

We have a wide range of roof insulation products including flat roof insulation tapered insulation and pitched roof loft insulation. The warm deck roof design is the modern method for flat roof construction and is preferred wherever this option is possible. The best method of insulating a flat roof is by using a warm deck flat roof construction method. We also have insulation boards suitable for more specialist roof applications for example inverted roof insulation and balcony insulation.

The layer of insulation is essentially placed outside of the roof. Thickness varies according to the manufacturer s specifications. It also provides better thermal performance and makes it easier to eliminate thermal bridging. Warm flat roofs do not need to be ventilated as the insulation is.

Inverted roofs are a type of warm flat roof where the insulation is above the waterproofing layer. This system is called warm deck insulation and eradicates the condensation and venting issues associated with the cold deck system. Good question theoretically when building a warm roof the vaper control layer goes on the warm side of the insulation. This is placed over the roof joists and a board normally external ply is laid on top.

Flat roof insulation. Cold flat roofs are typically avoided as you d need to install ventilation which can prove problematic for many reasons relating to space labour costs etc. A flat roof where the insulation sits below the waterproof membrane and above the structural deck is a warm roof deck. The main advantage of a warm deck construction versus a cold deck construction is that there is no need to include a ventilated cavity in the warm deck construction.

Or above the roof deck where overall roof height may need to be considered if a warm roof construction is desired. A wide range of applications across flat roofs whether you re looking to insulate at joist level or above the roof deck in your flat roof construction. In the case of a flat roof insulation is usually either a rigid board above the deck or a mineral glass wool quilt immediately above the underdrawn ceiling depending on the type of roof design and construction. Fortunately these days there is a better form of insulation available for your flat roof.

If you put insulation under the decking and between the joists you lower the temperature of the decking and lower the due point thus bringing it closer to the danger point of being in the building. The recognised flat roof build ups for best design practices are.