Adding Insulation To Concrete Block Walls

Some types of thicker foam board insulation are available but they may need to be special ordered.

Adding insulation to concrete block walls.

The simplest and most affordable method of insulating the interior of a block wall is to install rigid foam board insulation. Better yet reduce thermal bridging by upgrading the stud cavity and adding 50 mm x 50 mm 2 in. It comes in standard size 4 8 sheets and smaller sizes in many different thicknesses from 1 4 inch to 2 inches. Available in large three by five or four by eight sizes the panels.

X 3 in or even 50 mm x 89 mm 2 in x 4. Concrete block makes a cost effective and structurally sound wall but it has. 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. X 2 in 50 mm x 76 mm 2 in.

It may look easy to go buy some packs of rigid insulation panels down at the. Rigid foam can be adhered to a poured concrete or concrete block wall with foam compatible adhesive or with special plastic fasteners such as hilti idps or rodenhouse plasti grip pmfs. Foam board insulation is easy to use and is a great diy way to add some insulation. Before insulating coat the exterior of the walls with fluid applied water control and air control layers.

Adding 2 inch thick insofast panels will bring your walls to r 13 30 percent more than the iecc minimum. Your walls in their present state have an r rating of about 3. How to insulate house walls from the outside. The option for insulating concrete block walls includes spray foam insulation injection foam insulation polystyrene beads foam boards and loose fill masonry insulation.

To prevent interior air from reaching the cold concrete seal the perimeter of each piece of rigid foam with adhesive. A wall s thermal resistance or its r value is its ability to slow the transfer of heat from one side to the other. Adding insulation to basement walls. 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.

According to the international energy conservation code iecc for your area mass walls ones made of thick block brick stone or adobe should be at least r 10.