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.
Attic subfloor insulation.
You can achieve better thermal performance in your attic by adding an.
Whether or not you install a subfloor in the attic you should insulate the space.
Because the simplest and cheapest way to insulate an attic is to add material to the floor.
Cost effective way to save energy with this old house general contractor tom silva.
The higher the r value the better the thermal performance of the insulation.
Insulation keeps warm air from rising through the roof during the winter and keeps the hot.
Achieving greater r values in attics.
Plan to pull up the flooring and layer new insulation on top of the old.
With the floor gone you ll have to find.
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.