Open Vs Closed Cell Attic Insulation In Texas

Closed cell foams use enovate also known as 245fa which is.

Open vs closed cell attic insulation in texas.

Roofing applications typically use a 2 8 to 3 0 lb cu. An upgrade from traditional insulations like fiberglass batts or blown cellulose texas insulation s open cell foam creates an air seal to keep conditioned air indoors and dust and pollen out. In other words the cells are deliberatly left open. There are two types of spray foam.

Diyers can use this foam for small jobs such as insulating door frames. The higher the density the foam the heavier or stronger it becomes. Closed cell is denser better insulating. Closed cell foam is made up of cells that are as the name suggests completely closed.

Open and closed cell foam insulation use a blowing agent to forms the cells within it. Murmurs and hearsay about open cell spray foam insulation have been gaining traction for a while. Open cell foams typically weigh in at 0 4 to 0 5 lb cu. Open cell polyurethane and closed cell polyurethane.

The evaluation service report esr for spray foam insulation products provides a valuable resource based on a third party review of testing information useful for utilizing these. To support traffic and loads better. The cells are pressed together so air and mositure are unable to get inside the foam. Seems like you wouldnt want to seal something susceptible to mold growth but maybe thats just 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. It rots roofs people have told me. For bigger jobs such as roof attic floor and wall insulation you will. Id go with closed cell.

Open cell foams use water as a blowing agent. A spray insulation is referred to open cell or closed cell because of the difference between the small bubbles cells that make up the foam. Open cell foam is full of cells that aren t completely encapsulated. Closed cell open cell foam.

Both low density open cell and medium density closed cell spray foam can be used in an unvented attic to provide the needed thermal resistance and airtightness. This makes the foam a softer more flexable material. Closed cell foam for insulation applications range in density from 1 7 lb cu. Open cell foam is used in a wide range of applications such as for noise reduction in sound rooms home insulation metal buildings under roof deck for semi conditioned attics and more.

The open cell polyurethane foam has an r value of 3 5 to 3 6 per inch with a price tag of 1 1 20 square foot. Open cell is more susceptible to mold and mildew but its expanding so it can hermetically seal an area.