Concrete block makes a cost effective and structurally sound wall but it has.
Adding insulation to concrete block walls.
Adding insulation to basement walls.
Your walls in their present state have an r rating of about 3.
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.
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.
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.
Adding 2 inch thick insofast panels will bring your walls to r 13 30 percent more than the iecc minimum.
The simplest and most affordable method of insulating the interior of a block wall is to install rigid foam board insulation.
A wall s thermal resistance or its r value is its ability to slow the transfer of heat from one side to the other.
Available in large three by five or four by eight sizes the panels.
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.
Some types of thicker foam board insulation are available but they may need to be special ordered.
X 2 in 50 mm x 76 mm 2 in.
X 3 in or even 50 mm x 89 mm 2 in x 4.
This can be done with pretty much any rigid insulation.
Remove the existing wall board or plaster from a wood frame wall add or upgrade the existing wall cavity insulation and then install the vapour barrier new drywall and finish.
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.
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.
In your climate zone zone 5 code requires you to insulate concrete block and other mass walls to at least r 13 if all of the insulation is on the exterior.