The spray foam creates an airtight bathtub that is then filled with air permeable insulation such as fiberglass or cellulose.
Spray foam ceiling or roof.
The closed cell spray foam stops air infiltration and provides about an r 5 per inch.
Open or closed cell spray foam is applied to the underside of the roof sheathing and additional fiberglass or cellulose insulation is blown in as a cost saving method for meeting high insulation requirements and filling in the cavity space between the rafters to the ceiling deck.
Spray foam is used to seal the ceiling plane in an airtight manner figure 8.
I have a spray foamed attic.
It is critical to provide air sealing at the perimeter to control wind washing of air permeable insulation.
Eco spray foam insulation.
It s terrific because it s pretty much the same temperature as the rest of the house all the time.
Even though your attic is large this makes sense because you don t want to install your ducts or hvac equipment outdoors.
Made with plant based products such as soy eco spray foam is more eco friendly.
It has less chemical off gassing during application.
You can install spray foam on the underside of the roof sheathing to create an unvented conditioned attic.
Using spray foam products.
Because basically now that attic is a conditioned space.