Best Attic Blow In Insulation

Contractor grade 30 lb.

Best attic blow in insulation. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. Fiberglass comes from what i ve heard one major fiberglass insulation manufacturer call a rapidly renewable resource sand. Among commonly used types of insulation there are mineral wool or fiberglass rolls and batts rigid fiberglass board loose fill materials cellulose mineral wool etc. The photo above shows an attic insulated with blown cellulose.

Cellulose blown in ceiling insulation is a good choice for diyers. A bag of cellulose insulation covers about 30 35 square feet of attic space if you are blowing in 10 inches. Both can be added to uninsulated attics or layered over existing material. Bag of all borate insulation is ideal for professional contractors that offer blow in attic sidewall and floor applications.

Loose fill or batt the common term for blanket insulation. Rolls and batts are produced of mineral wool and fiberglass. Materials can be layered for added protection. Insulation efficiently fills gaps.

Blown in fiberglass is considered flame resistant. Blown in cellulose has a higher r rating and is less expensive than either blown insulation like fiberglass attic insulation or fiberglass batts. Blown in insulation flows down around wall studs. Blanket insulation modern technology of blanket insulation today is considered the best insulation for attic.

For diy attic insulation you ve got two choices. When blown into attics and wall spaces loose fill fiberglass offers an average r 2 5 thermal value per inch the higher the number the greater the insulating effect. Greenfiber cellulose insulation fills gaps and voids to create an energy saving thermal blanket that can lower heating and cooling costs by 25 and reduce sound power by 60. We include blown in attic insulation pros and cons but we can t recommend blown in fiberglass or cellulose as your best insulating choice.

Loose fill insulation is great for installing in attics with very little headroom and multiple obstructions such as vents and cross beams. Bag of all borate contractor grade 30 lb. It can be effectively blown over existing insulation and. I don t know about that but it s a common insulation material that works much better in the blown form than in batts.

Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. Once you ve decided which type is best for you examine the material options and prices to home in on the right product.