Insulating A Concrete Wall The Best Way

Adding extra insulation to the exterior walls of an older home when renovating or remodeling is a great way of improving a home s walls thermal performance and reducing energy use while reducing heating bills carbon footprint and improving a building s comfort level. Fortunately there are lots of different ways you can do this. A common way to improve the thermal performance of those walls is to fill the cavities with a foam in place insulation.

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And there is no effective way to fill the voids in an existing concrete block wall.

Insulating a concrete wall the best way.

The variety of concrete masonry wall constructions provides for a number of insulating strategies including. Cut 2 by 4 lumber to the height of your concrete wall minus 1 1 2 inches for a header and footer. The option for insulating concrete block walls includes spray foam insulation injection foam insulation polystyrene beads foam boards and loose fill masonry insulation. Interior insulation insulated cavities insulation inserts foamed in place insulation granular fills in block core spaces and exterior insulation systems.

Depending on thickness and the type of foam you choose super high effective r values can be achieved. Unless the house is still in the planning phase insulating a basement from the inside is usually the most practical method the most common types of insulation are fiberglass batt insulation foam insulation and blown in insulation. If you want a home to remain at acceptable temperatures throughout the year by blocking the airflow through the concrete blocks you have to insulate the walls. From the outside from the middle of the foundation and from the inside of the structure.

It may look easy to go buy some packs of rigid insulation panels down at the local hardware store and screw them to your walls but unless you understand how your existing walls are built and how they work in terms of keeping. Adhere and apply the remaining panels. While these are the options again the material available to use depends on whether the walls will be covered or the open top is exposed like in a remodel or new build. The beads to be used are poured into the open block cavities at the top.

Your only option is to cover the inside of the exterior walls with a continuous layer of insulation as though you were insulating a basement wall. After the cement is set apply a foam board adhesive to the rear of a polystyrene insulation panel then press the panel to the wall. Rigid foam panels are also a good way to insulate on the inside of concrete basement walls. Make sure your adhesive is free of solvents which can eat away at the foam insulation.

There are three ways to insulate basement walls. Next you will create a wood grid that will hold the drywall. Polystyrene bead cavity wall insulation t his option is used when the concrete block wall is open at the top. One disadvantage of rigid foam is for it to be effective it must be attached directly to the wall using adhesive or idp foam insulation anchors.

For example if you have a 7 foot wall you ll need 6 foot 10 1 2 inch long studs.

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