Smaller and more manageable 2 foot by 8 foot and 4 foot by 4 foot sheets can sometimes be purchased as well.
Insulating garage walls with foam board.
This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses.
Available in large three by five or four by eight sizes the panels.
You can buy large quantities that work great for attics or a small can of spray foam that work great at sealing the flow of air around windows or doors.
Eps is used under roofing over foundation walls and beneath siding.
Rigid foam board sizes.
The most obvious reason for installing rigid board insulation in your garage is the heating and cooling efficiency gained by using it.
4 insulating foam sealant.
The simplest and most affordable method of insulating the interior of a block wall is to install rigid foam board insulation.
Another insulation option is spray foam also called insulating foam sealant.
This type of insulation is available in different forms.
Rigid foam board insulation comes in up to 4 foot by 8 foot sheets to help you rapidly cover expansive walls.
So before insulating go around the garage with a can of low expanding spray foam and seal all gaps and cracks that let in the daylight.