Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
Best attic spray insulation.
Without question batt insulation is the most popular option for people who are looking to control sound and temperature.
Cellulose is the most effective material and has an r value of 2 2 to 3 8 per inch but if exposed to moisture it can get moldy.
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.
This type of insulation can be purchased online or at home depot.
This insulation comes in rectangular panels most of the time and they can vary in thickness quite a bit.
Open cell polyurethane and closed cell polyurethane.
Choose from two types.
There are two types of spray foam.
The big disadvantage with spray foam is cost.
It can be a do it yourself attic insulation project.
Diyers can use this foam for small jobs such as insulating door frames.
Spray foam attic insulation spray foam offers the best attic insulation performance available.
Cellulose blown in ceiling insulation is a good choice for diyers.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
Blown in cellulose is an environmentally friendly material made from recycled newspaper so it s easier on your skin and lungs.
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 don t have hvac and ducts in the attic spray foam on the roofline isn t really necessary.
Cellulose has more recycled material than any other commercially available insulation.
Closed cell and open cell aka 2 pound and pound respectively.
I d blow insulation on the attic floor after air sealing of course.
Rolls and batts are produced of mineral wool and fiberglass.
Both can be added to uninsulated attics or layered over existing material.
Cellulose is very inexpensive when it comes to attic projects in comparison to other materials.
The open cell polyurethane foam has an r value of 3 5 to 3 6 per inch with a price tag of 1 1 20 square foot.
They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively.
Loose fill or batt the common term for blanket insulation.
For diy attic insulation you ve got two choices.
Blanket insulation modern technology of blanket insulation today is considered the best insulation for attic.