Cellulose Insulation Finished Attic

Or 7 inches of cellulose.

Cellulose insulation finished attic.

Blown in cellulose is an environmentally friendly material made from recycled newspaper so it s easier on your skin and lungs. Wet insulation no longer performs its primary function of inhibiting heat transfer. You can get to the same place with either material. Both can be added to uninsulated attics or layered over existing material.

Cellulose blown in ceiling insulation is a good choice for diyers. Loose fill or batt the common term for blanket insulation. We did this project ourselves. When used in an attic space however both types of insulation are ineffective at air flow across the attic floor such as a strong gust of wind.

I am here to show the details of insulating our garage. The cellulose is blown into the attic or walls through long flexible tubes that run from the blower to an application nozzle. Loss of insulating value. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.

Loose fill fiberglass seems to dominate attic insulation in new construction homes and has an r value of approximately 2 5 per inch. Pros and cons of loose fill fiberglass attic insulation. Saturated insulation typically loses at least 40 of its insulating r value. Diy using cellulose insulation.

Blown in cellulose has a higher r rating and is less expensive than either blown insulation like fiberglass attic insulation or fiberglass batts. If you check with the cellulose insulation manufacturers association they ll assure you that cellulose is definitely your best choice for insulation. The air trapped in the pockets of the insulation is part of what insulates your home. To hit code minimums you ve got to add new insulation on top of the old insulation.

For diy attic insulation you ve got two choices. The attic is open blown of cellulose. It can be effectively blown over existing insulation and. The two most common types of insulation fiberglass batts and blown in cellulose loose fill are vulnerable to attic water damage in two specific ways.

Loose fill insulation is great for installing in attics with very little headroom and multiple obstructions such as vents and cross beams. Assuming your current attic insulation is made from fiberglass and has a value of r 13 you d have to add roughly 10 inches of additional fiberglass to hit r 38. Like cellulose you need a big machine to blow it in. Once you ve decided which type is best for you examine the material options and prices to home in on the right product.

The cellulose is allowed to fill the cavities or blanket existing insulation. It is allowed to settle over time. No pressure is placed on the cellulose.