Step-by-Step Guide to Installing Rigid Foam Insulation on Concrete Walls
Installing rigid foam insulation on concrete is a simple task that can have a big impact on the overall efficiency and comfort of your home. Rigid foam insulation can provide superior insulation values in comparison to other forms of insulation and is an excellent choice for a variety of concrete applications, such as foundations, walls, and slabs. This guide will provide you with step-by-step instructions on how to properly install rigid foam insulation on concrete.
Before beginning, make sure the concrete surface is clean and free of any dust, dirt, or debris. You may want to use a solution of detergent and water or a mild detergent cleaner to help with this task. If the surfaces has any cracks, cover those that are smaller than ¼ inch using commercial crack repair products. If the cracks are wider than this, clean out any dust or debris from the crack with compressed air, then fill with the crack repair. Finally, apply a water seal to the surface, if the surface has not already been sealed.
If the wall you are working on is inside an exterior wall and you need to add waterproofing, do this now before proceeding. For concrete basement walls where you will be attaching furring strips for drywall, attach the furring strips before gluing the insulation panels in place. Measure the size of the panels and make any necessary cuts, either by using a straightedge and pencil to draw a line, or using a chalk box to snap a line. Then cut the panels with either a circular saw or a handsaw.
Once the panels are cut and ready to be attached, it is time to apply the adhesive to your concrete surface. When applying the adhesive, you will want to do it in sections so you can attach the panels without glue drying before you’re done. Once the adhesive is in place on the concrete surface, press the insulation panels into the wet glue and secure them using self-tapping masonry screws and washers. Place the screws in at both vertical and horizontal intervals of 24 inches. To help protect the screws and washers from rusting, cover them with fiberglass tape.
After the foam insulation panels are installed and secured, you can enjoy the long-lasting energy-saving benefits they will provide. Rigid foam insulation on concrete is a relatively easy job that can dramatically improve a home’s efficiency and comfort levels. By taking the time to install it correctly and affording it the protection it needs, you’ll be sure to enjoy its long-lasting effects for years to come.