Best Insulation For Exterior Brick Walls

How to insulate house walls from the outside.

Best insulation for exterior brick walls.

Outer walls may be 4 inch thick bricks with inner walls of concrete brick or cinder block that is also 4 inches thick. Blown in insulation also known as foam or spray in insulation is ideal for filling in nooks and crannies when. How to insulate an older brick home can be a challenge. 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.

Brick is about 4 inch thick yes we basically live in a brick oven. Then all the. In a perfect world you would be able to unscrew invisible bolts remove drywall panels install insulation and reinstall the panels our less than perfect world of permanently attached wallboard means time consuming hacking away of gypsum individually removing drywall screws or nails installing r 13 or greater fiberglass roll insulation and re installing the drywall. Of course the best way to insulate this type of building is on the exterior with a layer of exterior rigid foam protected by synthetic stucco eifs or mineral wool panels.

If that s the case extra space has to be built for the insulation to go into. It may look easy to go buy some packs of rigid insulation panels down at the. Our insulation delivers a number of benefits beyond thermal performance in external walls such as best in class fire resistance exceptional noise reduction water repellence as well as vapor permeability and dimensional stability meaning excellent fit and real world performance for the lifetime of the building. The thin furring strips that hold the inside walls to this material leaves little room for insulation.

Never insulate these cavities or plug their drain holes. We live in a 1961 brick house in tucson az without any insulation of the exterior brick walls. If furring strips were nailed to the inner masonry there is only a narrow 3 4 inch space to add insulation. Foam insulation is often sprayed in through holes in the interior walls that must then be filled and re painted.

Many solid walls including double brick walls see figure 7 1 have a small cavity generally less than 25 mm 1 in which is a drainage plane that collects and drains water out of the wall. If the house has a double brick or block and brick exterior a new wall has to be framed out. So now we re bringing in framers. I ve talked in the past about how blown in insulation is highly recommended for northern california but this is especially true when it comes to how to insulate solid brick walls in old homes from the exterior.