The cellulose is allowed to fill the cavities or blanket existing insulation.
Cellulose insulation finished attic.
It is allowed to settle over time.
Blown in cellulose has a higher r rating and is less expensive than either blown insulation like fiberglass attic insulation or fiberglass batts.
It can be effectively blown over existing insulation and.
For diy attic insulation you ve got two choices.
Wet insulation no longer performs its primary function of inhibiting heat transfer.
Loose fill or batt the common term for blanket insulation.
Saturated insulation typically loses at least 40 of its insulating r value.
I am here to show the details of insulating our garage.
Walls are patched up and painted over.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
The air trapped in the pockets of the insulation is part of what insulates your home.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
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.
Cellulose blown in ceiling insulation is a good choice for diyers.
Or 7 inches of cellulose.
To hit code minimums you ve got to add new insulation on top of the old insulation.
No pressure is placed on the cellulose.
Both can be added to uninsulated attics or layered over existing material.
Blown in cellulose is an environmentally friendly material made from recycled newspaper so it s easier on your skin and lungs.
The cellulose is blown into the attic or walls through long flexible tubes that run from the blower to an application nozzle.
Diy using cellulose insulation.
Cellulose can slow down air flow particularly in walls.
Loose fill insulation is great for installing in attics with very little headroom and multiple obstructions such as vents and cross beams.
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.
You can get to the same place with either material.
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.
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.
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.
We did this project ourselves.
