Warm Pitched Roof Insulation

Insulating a pitched roof above the rafters.

Warm pitched roof insulation.

On new build or replacement pitched roofs the ideal build up would be insulation fitted over and then between the rafters giving a big boost for airtightness image credit. Saint gobain insulation uk s lightweight rigid polyisocyanurate pir foam insulation boards are among the most thermally efficient commonly available insulation products on the market. These usually have to be cut to size. Warm roofs offer a superior thermal performance and therefore come with a higher cost.

Our pitched roof panels are designed for use in warm pitched roof applications to provide a high level of insulation and are designed to insulate both the rafters as well as the roof and prevent the rafters forming a cold bridge. The thickness of insulation will vary. With a warm roof the insulation is installed on top of the existing surface rather than in between the rafters. There are typically two different ways to insulate a roof a warm roof and a cold roof.

Another key advantage of specifying a pitched roof is the ability to provide a very high level of thermal performance in these roof types whether you re looking to insulate at joist ceiling level for a cold pitched roof or at rafter level if a living area within a warm roof construction is desired. Fixed over the rafters of a pitched roof they can help to achieve the required u value in just a single layer. A warm roof building will make the entire structure of the building warm in an attempt to avoid any cold bridging. The battening and tiling is then fixed down over.

Warm deck pitched roof the insulation is placed over the rafters and then a felt is placed on top. To create a warm pitched roof insulation such as kingspan kooltherm k7 pitched roof board should be fitted between and over the rafters. Insulating the roof above the rafters is known as warm roof insulation as the rafters are brought into the insulated envelope of the building. The materials used to insulate under the roof include batts of mineral or glass wool insulation held in place by battens of wood attached to and across the rafters.

Alternatively polystyrene slabs that are sometimes foil covered can be fitted. Types of warm loft insulation. Pitched roofs are a common sight in the uk owing to their versatility and typical low maintenance requirements when compared to other forms of roof construction. Insulating a pitched roof above the rafters is the common method chosen for new builds and re roofing existing detached buildings as it provides superior thermal performance for the building.

It has s insulation layer above the rafters and immediately below its weatherproof membrane.