Warm Roof Layers

It is the most acceptable type of construction for domestic possessions and belongings as it avoids the need for aeration of the roof construction.

Warm roof layers.

In a warm roof construction the principal insulation layer is placed above the structural decking resulting in the structural deck and support structure being at a temperature similar to that of the building interior. Asphalt shingles come in two major types 3 tab and architectural. This keeps the structural decking usually constructed from timber steel or concrete at the same temperature levels as the internal temperature of the building. Protected by a geo textile layer to prevent fines from reaching the membrane surface.

The conventional method of installation called torch down involves heating the backside of the roofing as it is unrolled essentially melting the material to the base layer. Shingles are the element that most homeowners are familiar with as it is the layer you can see from the outside of your home and it is an important aesthetic aspect. Vapour control layers should be provided to warm roofs and. There are also self adhesive versions of modified bitumen that install in a peel and stick fashion.

Ideally the insulation is positioned in a continuous layer above the rafters so that the roof structure is in a warm environment. 3 tabs are less expensive but also less durable have lower wind resistance and have a flatter appearance. This usually keeps the deck warm. It s usually a peel and stick product that adheres directly to the roof deck.

Underlayment is usually felt or fiberglass paper that covers the entire roof deck. 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. Most roof decking is made from sheets of plywood. In warm roof construction the thermal insulation layer is installed above the structural deck.

However certain roof specifications can involve installing insulation over between or under rafters or even a combination of all three. Warm roofs have an insulation layer above the roof deck. Basically a warm roof system uses a breathable layer or membrane that hinders air and moisture from being trapped within the attic space that could otherwise result in the decay and rotting of wood structures.