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.
Adding insulation to concrete block walls.
Your walls in their present state have an r rating of about 3.
Better yet reduce thermal bridging by upgrading the stud cavity and adding 50 mm x 50 mm 2 in.
This can be done with pretty much any rigid insulation.
To prevent interior air from reaching the cold concrete seal the perimeter of each piece of rigid foam with adhesive.
The simplest and most affordable method of insulating the interior of a block wall is to install rigid foam board insulation.
X 2 in 50 mm x 76 mm 2 in.
X 3 in or even 50 mm x 89 mm 2 in x 4.
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.
A wall s thermal resistance or its r value is its ability to slow the transfer of heat from one side to the other.
Concrete block makes a cost effective and structurally sound wall but it has.
Some types of thicker foam board insulation are available but they may need to be special ordered.
Adding 2 inch thick insofast panels will bring your walls to r 13 30 percent more than the iecc minimum.
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.
Adding insulation to basement walls.
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.
It comes in standard size 4 8 sheets and smaller sizes in many different thicknesses from 1 4 inch to 2 inches.
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.
How to insulate house walls from the outside.
It may look easy to go buy some packs of rigid insulation panels down at the.
Before insulating coat the exterior of the walls with fluid applied water control and air control layers.
The option for insulating concrete block walls includes spray foam insulation injection foam insulation polystyrene beads foam boards and loose fill masonry insulation.