Insulate Attic Between Rafters

If you re using the attic for living space then you need to insulate the rafters.

Insulate attic between rafters.

In finished attic rooms with or without dormer insulate 2a between the studs of knee walls 2b between the studs and rafters of exterior walls and roof 2c and ceilings with cold spaces above. Time to get the insulation finished and get this place warm. That s because it s easier for the contractor to spray than clean up existing insulation deal with any can lights or venting etc. This generally would not be a sufficient thickness to achieve the u values required to meet building regulations and more insulation would need to be added.

Common rafter depths range from 100mm to 200mm. If you have a solid floor covering the roof rafters use the claw end of a hammer to pull the floor up in several locations and blow the insulation under the boards. Typically you will fill the insulation blower with the insulation and blow it between the attic floor joists. Consumers are often told by spray foam contractors to do the rafters.

Visquine a painter s drop cloth over the insulation and across the face of the rafters. Hire a pro to install spray foam insulation. This limits the maximum thickness of the insulation between the rafters to between 50mm and 175mm. Https youtu be w4mkphzmqxw contact us restorat.

2d extend insulation into joist space to reduce air flows. Check out our how to video at the link below. Install ventilation baffles into the space between the rafters before you install the insulation usually by stapling into place. Insulation if your attic is going to be converted into livable space then you will need to insulate the roof rafters.

You can use rigid foam panels or do as tom silva does with nearly all houses these days. Although the paper or foil backing of the insulation is a vapor barrier the added visquine covers completely with no breaks making sure no moisture forms in the cavity. Push the insulation in place between the rafters but be careful not to compress the material. If you re considering turning your attic into conditioned storage or living space it s worth changing tactics to insulate between the rafters and wall joists instead of the floor.

If you re not do the attic floor.