Cellulose Insulation Finished Attic

For diy attic insulation you ve got two choices.

Cellulose insulation finished attic.

Walls are patched up and painted over. Loose fill or batt the common term for blanket insulation. Saturated insulation typically loses at least 40 of its insulating r value. Cellulose can slow down air flow particularly in walls.

Cellulose blown in ceiling insulation is a good choice for diyers. If you check with the cellulose insulation manufacturers association they ll assure you that cellulose is definitely your best choice for insulation. No pressure is placed on the cellulose. Both can be added to uninsulated attics or layered over existing material.

The cellulose is allowed to fill the cavities or blanket existing insulation. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. Pros and cons of loose fill fiberglass attic insulation. Diy using cellulose insulation.

The attic is open blown of cellulose. 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. You can get to the same place with either material. 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.

It can be effectively blown over existing insulation and. The cellulose is blown into the attic or walls through long flexible tubes that run from the blower to an application nozzle. Blown in cellulose is an environmentally friendly material made from recycled newspaper so it s easier on your skin and lungs. Or 7 inches of cellulose.

Loose fill insulation is great for installing in attics with very little headroom and multiple obstructions such as vents and cross beams. Wet insulation no longer performs its primary function of inhibiting heat transfer. 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. We did this project ourselves.

Like cellulose you need a big machine to blow it in. Blown in cellulose has a higher r rating and is less expensive than either blown insulation like fiberglass attic insulation or fiberglass batts. I am here to show the details of insulating our garage. To hit code minimums you ve got to add new insulation on top of the old insulation.

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. Loose fill fiberglass seems to dominate attic insulation in new construction homes and has an r value of approximately 2 5 per inch. Loss of insulating value.