Attic Foil Vs Spray Foam

It is installed with the foil facing the attic and must have air space minimum of in front of the foil to work and of course code required ventilation.

Attic foil vs spray foam.

As long as they re properly installed both closed cell and open cell foam insulation act as an effective air barrier in your attic. What is foam insulation. Lo mit is a water based low voc paint product. Earlier this year i got a question about a home that had spray foam insulation in the attic.

It is class a fire rated and is electrically non conductive. When we seal the attic with spray foam it s as tight as a butter tub. It can be installed in 1 2 the time or less of foam or foil methods and at a fraction of the cost. Foil radiant barrier method radiant foil installation can become damaged in the form of rips tears or de lamination.

On the whole spray foam insulation costs two to three times as much as fiberglass insulation. Foam insulation most commonly comes in two forms. Applicators have to wear especially protective equipment during application process. One huge benefit of the spray foam insulated attic is that conditioned air leakage from the ac furnace duct system is contained and used to condition the attic.

Open cell foam insulation in attics. If the spray foam is having trouble sticking to the foil layer use a medial layer of foam board. Hire a contractor to install or lo mit can be easily applied by the homeowner with standard airless paint spray equipment. Fiberglass insulation costs around 0 40 per square foot.

Another alternative to radiant barrier foil are the various types of foam insulation. 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. Wedge the board into the cavity right up against the foil and then spray the foam on to that. Spray foam may be highly flammable and can easily combust.

Radiant barrier is your first line of defense and traditional attic insulation fiberglass or cellulose is the second line of defense against heat. If you re looking for insulation for a metal building project then check out bluetex insulation for premium foil foam products that block heat and moisture in new and existing metal buildings. Nothing unusual about that. Spray foam can be significantly more expensive but can lead to bigger savings on heating and cooling costs.

However in a traditionally insulated attic insulation on the ceiling the attic is vented. Cost of fiberglass vs.