Foam Board Insulation Basement Wall

Foam board insulation is a type of rigid insulation made from polystyrene or polyurethane. It is often used to insulate the walls of basements and other below-grade spaces. Foam board insulation is lightweight and easy to install, and it provides excellent thermal resistance. It is also moisture-resistant, which makes it a good choice for basement walls that are prone to moisture problems.

There are two main types of foam board insulation: extruded polystyrene (XPS) and expanded polystyrene (EPS). XPS is a closed-cell foam, which means that it is made up of tiny, sealed cells. EPS is an open-cell foam, which means that it is made up of cells that are not completely sealed.

XPS is more expensive than EPS, but it is also more durable and has a higher R-value. R-value is a measure of thermal resistance. The higher the R-value, the better the insulation. XPS has an R-value of about 5 per inch, while EPS has an R-value of about 3.5 per inch.

When choosing foam board insulation for your basement wall, you will need to consider the following factors:

The R-value of the insulation
The thickness of the insulation
The cost of the insulation
The durability of the insulation

Once you have considered all of these factors, you can choose the foam board insulation that is right for your needs.

To install foam board insulation on your basement wall, you will need to follow these steps:

Clean the wall and remove any dirt or debris.
Apply a bead of adhesive to the back of the foam board insulation.
Press the foam board insulation against the wall and hold it in place for a few seconds.
Repeat steps 2 and 3 until the entire wall is covered.
Tape the joints between the foam board insulation pieces with duct tape.

Foam board insulation is a great way to insulate your basement wall and keep your home warm and comfortable. It is easy to install and provides excellent thermal resistance. If you are looking for a way to improve the energy efficiency of your home, foam board insulation is a great option.