Insulating Attic Dormers

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Insulating attic dormers.

If the attic kneewall spaces are used for storage then you ll have to insulate along the roof slope down to the eaves and create an air barrier at the rafters. To find out if you have enough attic insulation measure the thickness of the insulation. Loose fill insulation is usually less expensive to install than batt insulation and provides better coverage when installed properly. Insulating the floor of the void or the ceiling of the storey below depending which way you look at it is straightforward with a number of options available and is in effect the same as.

In case the space on the existing rafters is not enough you can fix a batten to the rafters underside in order to enhance the depth. This can be done with spray foam or rigid foam cut to fit between rafters and foamed in place with a foam gun. Hold the cut insulation against the dormer walls with the paper side facing the attic or room and the fibreglass facing.