Achieving greater r values in attics.
Attic subfloor insulation.
Insulation keeps warm air from rising through the roof during the winter and keeps the hot.
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.
The higher the r value the better the thermal performance of the insulation.
You can achieve better thermal performance in your attic by adding an.
Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer.
Cost effective way to save energy with this old house general contractor tom silva.
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.
Because the simplest and cheapest way to insulate an attic is to add material to the floor.
See below for a shopping list and tools subscribe to this old house.