Unlike fiberglass insulation which improves with the increase of density cellulose insulation offers the same protective values across the board regardless of material density.
Pros and cons of cellulose attic insulation.
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.
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.
When blown in cellulose gets into some of the tight corners and hard to reach areas in the attic cavities.
This type of insulation requires professional installation.
Cellulose is very inexpensive when it comes to attic projects in comparison to other materials.
Cellulose has a higher r value and even does not lose the value in the extreme cold were fiberglass may.
Most blown in cellulose materials are non toxic.
Materials can be layered for added protection.
Installation projects can be very messy.
Insulation efficiently fills gaps.
The pros and cons of today s most popular insulation.
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.
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.
Blown in insulation flows down around wall studs.
Boric acid borax or aluminum sulfate used in cellulose insulation provides resistance to mold pests and fire that can occur in the attic.