Blown In Insulation R Value Calculator

It can be done without blowing equipment but at a much lower coverage rate per bag.
Blown in insulation r value calculator. Along with knowing the r value of a particular insulation it is also important to calculate the r value of a total system. Insulation level are specified by r value. In comparison an inch of blown fiberglass insulation has an r value of 3 1 3 4 and an inch of blown cellulose in an attic has an r value of 3 2 3 7. This calculator is to be used as an estimating tool only.
As the title indicates this insulation is blown into the space that needs to be insulated. For every type and material of insulation check the r value per inch of thickness that the manufacturer has listed. Current r value target r value project size in ft 2 bags of greenfiber already have insulation. Some places that sell blown insulation will include a free equipment rental with the purchase of a certain minimum amount of bags.
Estimated depth of current insulation. Please enter in your email address in the following format. Get 5 off when you sign up for emails with savings and tips. This calculator is to be used as an estimating tool only.
Greenfiber insulation calculator easy to follow steps for calculating the perfect amount of insulation needed for your project. As a benchmark one inch of solid wood has an r value of 1. Click the button to calculate the depth in inches and pounds of total insulation required for this job. This calculator is to be used as an estimating tool only.
The higher the r value per inch of thickness the better job the insulation will do when you heat or cool your home. A higher insulation r value usually means a higher price point as well. R value is a measure of insulation s ability to resist heat traveling through it. The r value of insulation is a measure of how well it reduces the flow of heat and cold into and out of your house.
Click the button to calculate the approximate r value for this job. The table below shows what levels of insulation are cost effective for different climates and locations in the home. The higher the r value the better the thermal performance of the insulation. Input length width and desired r value of the area to be insulated.
Input length width and desired r value of the area to be insulated. Input depth of existing blown in insulation in inches. Inches more and more.