Attic Foam Spray V Reflective Insulation

A number of factors should be taken into consideration when choosing between these two especially the climate zone that you re building in.

Attic foam spray v reflective insulation.

This alternative to traditional building insulation fiberglass can be applied into wall cavities holes concrete slabs and even onto roof tiles and. If you don t have hvac and ducts in the attic spray foam on the roofline isn t really necessary. Reflective roof insulation vs. Nothing unusual about that.

The big disadvantage with spray foam is cost. Foam blocks airflow needs no vapor barrier and has a higher r value per inch than loose fill or batts so you ll get more protection with less depth. Between the immediate costs of insulating a roof and the potential energy savings the kind of roof insulation you choose can make a major. 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.

Foam insulation rigid boards are 4 x8 sheets usually cast of closed cell polystyrene designed to fit directly inside walls against the interior or exterior of plywood sheathing as well as on top of sub floors. It s generally 3 to 4 times what you ll pay for blown cellulose or fiberglass. For diy attic insulation you ve got two choices. There is no such thing as radiant barrier paint.

Foam insulation most commonly comes in two forms. Loose fill or batt the common term for blanket insulation. Spray foam offers insulation and provides some sound proofing from outside noise. Spray polyurethane foam is a chemical product that is created by two materials isocyanate and polyol resin that will react with each other when they are mixed and will expand up to 30 to 60 times its liquid volume as it is sprayed in place.

Earlier this year i got a question about a home that had spray foam insulation in the attic. The difference between reflective paint and radiant barrier foil let s get some facts straight. I d blow insulation on the attic floor after air sealing of course. The unvented attic space is considered the most effective and up to date building practice particularly by the spray foam industry.

Radiant barrier sheathing is inexpensive and reflects thermal radiation to keep attic spaces cool. Hire a pro to install spray foam insulation. With spray foam unlike with loose. Attics with spray foam insulation are so cool.

We mean that literally by the way.