R value is a measure of insulation s ability to resist heat flow.
R 38 blown attic insulation.
R value is a measure of insulation s ability to resist heat traveling through it.
This calculator is to be used as an estimating tool only.
The higher the r value the better the thermal performance of the insulation.
Having the correct amount of attic insulation can help you maintain a comfortable temperature throughout your home and help save money on your energy bills plus prevent major issues like ice dams in the winter.
The table below shows what levels of insulation are cost effective for different climates and.
When you need to add insulation to an attic crawl space or walls of a home the fastest and most cost efficient method is to use blown in insulation.
Blown in cellulose is an environmentally friendly material made from recycled newspaper so it s easier on your skin and lungs.
The average cost of blown in insulation to achieve an r value of r 38 r 49 is 1 665 with most homeowners spending between 874 and 2 156 or 1 59 per square foot.
The recommended level for most attics is to insulate to r 38 or about 10 to 14 inches depending on insulation type.
Click the button to calculate the approximate r value for this job.
Blowing the insulation should take less than 1 5.
R values like r 38 are used by the construction industry to describe the thermal resistance of insulation materials like those used to insulate your attic when you are looking at an r 38 insulation you are actually reading a description of its resistance rather than size or thickness of the material.
The specially designed atticat machine conditions the insulation by adding millions of tiny air pockets that give the material its insulating power and energy saving r value over time.
Atticat expanding blown in insulation is designed for your attic insulation project in new or existing homes.
Cellulose blown in ceiling insulation is a good choice for diyers.
Add the right kind of insulation.
Insulation levels are specified by r value.
Blown in cellulose has a higher r rating and is less expensive than either blown insulation like fiberglass attic insulation or fiberglass batts.
8 bags model k91 view the owens corning attic insulation.
Input depth of existing blown in insulation in inches.
If you think you re among the 90 of us homes that are under insulated 1 performing a simple insulation inspection will help you determine your insulation needs.
Recommended home insulation r values.