Steps in Insulating Concrete Basement Walls

Feb 12th

Insulating concrete basement walls are an important source of heat loss in buildings. Exterior insulation of a basement wall is the best way to make it more efficient. Insulation during construction takes advantage of the fact that the walls of the basement are exposed. Applying rigid foam sheets on the outside of the walls prevents cold air from penetrating the wall material. Rigid foam insulation sheets can be purchased at the hardware store and home improvement stores. Ask him what size and type are best for his particular application.

Insulation For Basement Walls R Value
Insulation For Basement Walls R Value

Apply to the face of a 2 by 8 feet sheet of rigid foam insulation 2 inches thick. Place the adhesive in small drops on a grid with each blob separated by about 12 inches. Press the rigid foam sheet against the outer face of the wall, with the blade in an upright position. Cut the sheet out so that its top is the top of the basement wall. Also, cut a sheet of foam lengthwise to fit the remaining wall space when you reach the end of a wall. Cut around door and window openings with a sharp knife after the foam has been fixed to the wall.

12 Photos Gallery of: Steps in Insulating Concrete Basement Walls

Image of: Insulation For Basement Walls R Value
Image of: Insulating Basement Walls With Foam Board
Image of: Insulating Basement Walls With Fiberglass
Image of: Insulating Basement Walls Mike Holmes
Image of: How To Insulate A Basement Ceiling
Image of: How Thick Foam Board For Basement Walls
Image of: Faced Or Unfaced Insulation In Basement Walls
Image of: Do You Need To Insulate Basement Walls Below Grade
Image of: Basement Wall Insulation Blanket
Image of: Basement Insulation Vapor Barrier
Image of: Basement Insulation R Value Code
Image of: What Type Of Insulation Should Be Used In A Basement

Cover the joints between the foam sheets with construction adhesive tape. Apply the foam sheets together with rigid tape act as a vapor barrier, so no plastic vapor barrier is necessary. Fill around the basement walls, being careful not to disturb the sheets of rigid foam or place any large or strong rocks against them. Rigid foam is impervious to water and moisture, so the soil can be padded against it without damaging it.

Leave a Reply