Plan to pull up the flooring and layer new insulation on top of the old.
Attic subfloor insulation.
Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer.
Achieving greater r values in attics.
Because the simplest and cheapest way to insulate an attic is to add material to the floor.
The higher the r value the better the thermal performance of the insulation.
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.
Whether or not you install a subfloor in the attic you should insulate the space.
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.
See below for a shopping list and tools subscribe to this old house.
Cost effective way to save energy with this old house general contractor tom silva.
Insulation keeps warm air from rising through the roof during the winter and keeps the hot.