Pros And Cons Of Cellulose Attic Insulation

Blown in insulation flows down around wall studs.

Pros and cons of cellulose attic insulation.

Insulation efficiently fills gaps. This type of insulation requires professional installation. Materials can be layered for added protection. Blown in fiberglass is considered flame resistant.

If your attic has a lot of nooks and crannies your best bet may be to use loose fill insulation made of fiberglass or cellulose. Blown in cellulose pros one aspect to consider is air infiltration and in that cellulose is the top choice due to its ability to form a dense mat that allows the air within the insulation to keep moving. Cellulose has a higher r value and even does not lose the value in the extreme cold were fiberglass may. When compared under the same conditions fiberglass insulation increases air tightness by 41 over an uninsulated building while cellulose insulation increases air tightness by 74.

Boric acid borax or aluminum sulfate used in cellulose insulation provides resistance to mold pests and fire that can occur in the attic. Unlike fiberglass insulation which improves with the increase of density cellulose insulation offers the same protective values across the board regardless of material density. When blown in cellulose gets into some of the tight corners and hard to reach areas in the attic cavities. Most blown in cellulose materials are non toxic.

If you choose to install cellulose yourself you can buy the insulation in bags from your local home improvement store. Cellulose is very inexpensive when it comes to attic projects in comparison to other materials. Pros and cons of cellulose attic insulation cellulose recycled ground up paper with boric acid added for insect control and fire resistance offers a better attic insulation option than batts.