Insulation keeps warm air from rising through the roof during the winter and keeps the hot.
Attic subfloor insulation.
The higher the r value the better the thermal performance of the insulation.
Plan to pull up the flooring and layer new insulation on top of the old.
Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.
Achieving greater r values in attics.
You can achieve better thermal performance in your attic by adding an.
But if the floor is covered in plywood you can t stuff enough insulation beneath it to do the job sufficiently not even in warm climates.
Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer.
So it s time to pay close attention to what s happening up there.
See below for a shopping list and tools subscribe to this old house.
With the floor gone you ll have to find.