Open Cell Vs Closed Cell Foam Insulation Attic

Closed cell foam is more rigid.

Open cell vs closed cell foam insulation attic.

However both foams are air barriers and it is the air barrier that makes foam such an excellent insulation. Both closed cell spray foam and open cell spray foam insulation can be used effectively in commercial building designs to allow the building to achieve energy efficiency and consistent performance. There are two types of spray foam insulation open cell and closed cell. It rots roofs people have told me.

Not long ago someone even told me that in florida roofing companies won t let their workers go up on roofs with open cell spray foam because the roofs are so spongy the guys fall right through. Closed cell issue there are two major factors to understand and consider. I am getting mixed advice about closed cell vs. It is either open cell foam where the tiny cells of the foam are not completely closed.

Closed cell foam is around 6 6 per inch as compared to 3 8 per inch in open cell. Closed cell foams use enovate also known as 245fa. They are broken and air fills all of the open space inside the material. Murmurs and hearsay about open cell spray foam insulation have been gaining traction for a while.

Open cell spray foam costs 0 25 to 0 50 per board foot and closed cell spray foam costs 0 90 to 1 50 per board foot the average cost of spray foam insulation installation is 2 128 with most homeowners paying between 1 463 and 2 926 pricing depends on how many parts of the home you wish. Most insulation contractors are recommending open because it s cheaper and also because if i go with closed cell and the roof leaks it will not penetrate the insulation and could remain stuck between the sheathing and the insulation and could rot the wood and or travel to a more hidden spot of the roof or attic causing worse problems that are harder to notice than if the roof leaked and. When applied on the interior open cell spray insulation provides performance advantages that differ from those of closed cell spray foam used on the exterior. Open cell foams use water as a blowing agent.

Some say use open that way you can see a leak before it does any damage others say use closed so any water damage should run off under your roof shingles. Open and closed cell foam are two different types of spray foam insulation. Spray foam insulation cost. Open cell foam insulation in my attic area.

Open and closed cell foam insulation use a blowing agent to forms the cells within it. They have different strengths and weaknesses and one is not necessarily better than the other. The first is the nature of the foam.