The practice of foam insulating the attic has raised eyebrows in the building industry because standard roofing techniques call for the attic to be ventilated.
How to spray foam attic floor.
The best attic insulation.
It s quick and easy to do.
And the benefits range from much lower utility bills to fewer pests to reduced sound transfer.
Removing the attic floor insulation will solve this problem.
But now the attic isn t vented to outdoors.
Install a minimum of 1 inch of spray foam insulation over the attic floor to provide a continuous air control layer.
There s no reason for an air conditioning and vent ductwork to have to work in that type of severe conditions.
100 free of cfcs vocs penta bdes urea formaldehyde.
R value of 7 in 1 inch 97 closed cell foam.
Using spray foam insulation in an attic is a popular energy saving project.
The attic is much warmer than outdoors in winter but significantly cooler than the living space if you leave the old insulation in the attic floor.
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.
Install the spray foam to meet or exceed code required r values or add additional loose fill or batt fibrous insulation over the 1 inch of spray foam insulation to levels that meet or exceed the current adopted building energy codes.
This alternative to traditional building insulation fiberglass can be applied into wall cavities holes concrete slabs and even onto roof tiles and.
That makes the surface of the spray foam cooler possibly even below the dew point.
Spray foam insulation that s convenient and easy to use.
However in a vented attic situation it will become approximately 130 degrees in the summer.
Use closed cell foam it green for attic rafters.
The roof and atti.
Sealing the top of the house keeps the air you paid to heat and cool inside your home.
Get your kits the easy to use spray foam kit.