As with pretty much all home improvement projects your contractor might.
Attic sealing spray foam.
Spray foam is considered a high end insulation because of the cost and because it is seen as a fix all solution for insulation or air sealing.
Check for negative pressure.
We offer services such as cellulose insulation air sealing duct sealing spray foam duct insulation and rigid foam insulation all of which address specific problems in the attic to improve efficiency and home comfort.
How to manage humidity in your spray foamed attic 1.
Using spray foam insulation in an attic is a popular energy saving project.
And the benefits range from much lower utility bills to fewer pests to reduced sound transfer.
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.
Cold air is dry air you know.
Again cover with insulation when you re done.
Then finish up by sealing the access hatch with self sticking foam weatherstrip photos 10 and 11.
Shake vigorously for a minimum of 60 seconds.
Sealing the top of the house keeps the air you paid to heat and cool inside your home.
Thus the air in the attic is connected with the air in the house.
It s quick and easy to do.
When you re done sealing your attic bypasses push the insulation back into place with an old broom handle or stick as you back out of the attic.
If the can sputters simply.
Apply self adhesive foam weatherstrip tape to the top edge of the stop.
If mechanical systems in your home create a negative pressure environment you could.
Make sure your attic is properly sealed.
Fold the bag over and stuff it into the open joist space under the wall a piece of rigid foam board sealed with spray foam also works well for covering open joist cavities.
But a common reason to put spray foam on the roofline is to avoid having to air seal the attic floor.
If using great stuff pro with foam dispensing gun follow these additional steps before application.
Unfortunately it s a labour intensive process during a time where good labour is hard to find.
That means it s more humid than outdoor air and more humid than vented attic air.