Above Rafter Roof Insulation

Thanks to the uniformly thick homogenous insulation layer above the rafters thermal bridges are avoided and your roof receives seamless thermal heat and noise protection without weak spots.

Above rafter roof insulation.

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. Our recently developed airguard smart membranes go even further. The construction build up for this can be seen on our online u value calculator. Order helpline 01752 692 206 register login.

Insulating the roof above the rafters is known as warm roof insulation as the rafters are brought into the insulated envelope of the building. Here the thermal insulation is precisely installed between the rafters. The original rafters are extended but original roof deck sheathing cut back to be flush with the original wall sheathing. Here s how you fix it together.

The weight of the tiles or slates is taken by the counter battens which are laid on top of the insulation a non structural element. As this requires fitting insulation above the rafters the roof covering will have to be removed in order to fit the insulation. The very best range of loft insulation is available here at insulation superstore from top brands such as knauf isover thermafleece and more. Insulation above rafters in above rafter insulation the insulation is laid completely across the rafters and provides the highest quality insulation for your roof.

This roof type will require a breathable membrane like kingspan nilvent to be fitted above the insulation. Insulation above the rafters. Dupont tyvek and dupont airguard are fit for use as an windtightness layer in above rafter insulation systems. They can be installed from the exterior without any problems.

Lay mannok therm roof mr insulation boards above the rafters butted tightly against the stop batten and supported on both sides by the rafters. Insulation positioned over rafters in a pitched roof is called a warm pitched roof. The counter batten to which the tiles slates are fixed effectively becomes a structural element. The most commonly used form of roof insulation in sloping roofs is insulation between rafters.

Ideally an additional insulation layer of isolair or pavatherm plus is to be laid above the rafters as a sarking to reduce thermal bridging in the rafter area. On the front of the roof edges of the roofs the overhangs were extended to hide the thickness of the roof insulation photograph 10.