Using Styrofoam In Attic For Insulation

It provides an r value of 6 per inch of thickness and often comes foil faced to help reflect radiant heat.

Using styrofoam in attic for insulation.

That styrofoam insulation will work but it is not cheap per r value however it gives you a great r value per inch. Remove the old. One common use of extruded polystyrene foam board is for foundation insulation panels. This is an even more dense and more expensive foam board insulation.

Measure the space between rafters and cut the board to fit. A lot of builders and homeowners are going with spray foam insulation because of the airtightness benefits but then the questioner mentioned that the spray foam contractor had intentionally left big holes to the outside by not sealing the gable vents. Use a chalk line or t square to mark where it needs to be cut. Step 3 place caulking and furring strips.

Step 4 cut foam boards. Earlier this year i got a question about a home that had spray foam insulation in the attic. Nothing unusual about that. 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.

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. A table saw will also cut the board but it. You can use a utility knife to cut using the same cut and snap process you use with drywall. Remove any existing pieces of insulation that might have been covering the attic walls until now.

Insulation is used in an attic for cross ventilation to minimize potential for moisture accumulation and condensation to help energy savings and moisture control.