Spray Foam Ceiling Or Roof
You can install spray foam on the underside of the roof sheathing to create an unvented conditioned attic.
Spray foam ceiling or roof. It has less chemical off gassing during application. Made with plant based products such as soy eco spray foam is more eco friendly. Eco spray foam insulation. It s terrific because it s pretty much the same temperature as the rest of the house all the time.
It is critical to provide air sealing at the perimeter to control wind washing of air permeable insulation. 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. Nope you absolutely do not need to ventilate a spray foam house and here s why. Because basically now that attic is a conditioned space.
I have a spray foamed attic. Using spray foam products. Installing insulation attics one of the high tech insulation products being utilized these days is a foam spray product called icynene which is a foam that starts as two liquid components a and b if you will that are heated up and sent through two hoses and meet at a tip of a gun where the magic begins. Products with a higher r value provide greater insulation.
Spray foam is used to seal the ceiling plane in an airtight manner figure 8.