Crawl pros recommends blown in cellulose as the best attic insulation for your home.
Best insulation for attic 2017.
Loose fill or batt the common term for blanket insulation.
It s generally 3 to 4 times what you ll pay for blown cellulose or fiberglass.
January 17 2017 at 9 00 am est.
Having insulated hundreds of homes throughout the northwest crawl pros has learned that blown in cellulose insulation provides the most protection and energy efficiency.
They sport insulation values of approximately r 6 5 and r 3 6 per inch respectively.
What type of insulation is best for your attic.
This is a particularly clutch option if your hvac system heating ventilation and air conditioning for the layman is located on the floor.
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.
Choose from two types.
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 most common type of insulation batts and blankets are great for diy projects.
Foam is the only insulation material that allows you to expand your building envelope to your attic s roofline.
Which type of insulation is best for.
Spray foam attic insulation spray foam offers the best attic insulation performance available.
Blanket insulation is available as batts or rolls and is the easiest diy insulation material.
They usually come packaged in rolls and.
It s available in fiberglass mineral wool plastic fibers and natural fibers.
For diy attic insulation you ve got two choices.
Both can be added to uninsulated attics or layered over existing material.
Closed cell and open cell aka 2 pound and pound respectively.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
Using washington as an example the energy code requires a minimum r value of 49 for attic insulation but more can be added if desired.
The big disadvantage with spray foam is cost.
Modern technology of blanket insulation today is considered the best insulation for attic.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
I d blow insulation on the attic floor after air sealing of course.