The higher the r value the better the thermal performance of the insulation.
Using wall insulation in attics.
In addition to walls and attics insulation should be installed in ceilings with unheated spaces basement walls floors above vented crawl spaces cathedral ceilings floors over unheated garages or porches knee walls and in between interior walls especially bathrooms as well as ceilings and floors.
Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer.
You can use either faced or unfaced batting for this installation.
When blown into attics and wall spaces loose fill fiberglass offers an average r 2 5 thermal value per inch the higher the number the greater the insulating effect.
Achieving greater r values in exterior walls in exterior walls add insulating sheathing to achieve a greater r value in your wall system.
If you feel like your.
Attic hatch or door.
You d need a thickness of.
So it s time to pay close attention to what s happening up there.
Add weatherstripping around the perimeter and a sweep to the door of a walk up attic.
You can achieve better thermal performance in your attic by adding an additional layer of insulation.
When using insulation that has.
Pull down stair or ladder.
Insulating between rafters install batting between the roof rafters for finished attic spaces.