Insulating Old Roofs

They are often advertised as a diy option but those who have done it suggest that it requires skill and experience to do well.

Insulating old roofs.

Caulk window trim and use weatherstripping to reduce air leaks. Insulation board should be added between the old and new roof systems to ensure proper insulation and to reflect heat from the outside. Available in both foam and rigid form choose the board type. There is a good deal of controversy around these systems.

Attach 1 inch foam board insulation. Suitable insulation includes natural fibre based products made of sheep s wool or hemp as well as mineral wools. Replace old windows with energy efficient units. Permeable insulation works well with old buildings that breathe.

If you want to avoid internal changes you can do so by insulating externally. One way to insulate walls of an old house is to focus on the home s exterior. Install siding over the insulation. The other option is loose fill or blown insulation.

If there is only 25mm of insulating material then this is likely to date back to the 1970s as this type of. With an assumed pre existing u value of 2 23w m the best options are as follows. Equally the reverse is true. Apply a house wrap vapor barrier to exterior walls.

Alternative options for insulating old roofs one modern option for existing buildings is sprayed foam.