This is an even more dense and more expensive foam board insulation.
Using styrofoam in attic for insulation.
Insulating an attic usually means you have a lot of room for insulation and you will need high r value so that is why the cheaper options are more popular blown cellulose or blown fiberglass.
Installing foam insulation board in an attic.
Use a chalk line or t square to mark where it needs to be cut.
It provides an r value of 6 per inch of thickness and often comes foil faced to help reflect radiant heat.
Insulation is used in an attic for cross ventilation to minimize potential for moisture accumulation and condensation to help energy savings and moisture control.
How do you install rigid foam board.
Remove the old.
Nothing unusual about that.
That styrofoam insulation will work but it is not cheap per r value however it gives you a great r value per inch.
Remove any existing pieces of insulation that might have been covering the attic walls until now.
Step 3 place caulking and furring strips.
A table saw will also cut the board but it.
Measure the space between rafters and cut the board to fit.
Step 2 install insulation boards.
Spray polyurethane foam will provide thermal insulation that will minimize air infiltration which can help to save on heating and cooling costs within the indoor environment.
One common use of extruded polystyrene foam board is for foundation insulation panels.
Earlier this year i got a question about a home that had spray foam insulation in the attic.