R value is a measure of insulation s ability to resist heat traveling through it.
Attic insulation material ratings.
Typically a higher insulation r rating means better climate control and better energy efficiency for your home.
Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live.
Typical recommendations for exterior walls are r 13 to r 23 while r 30 r 38 and r 49 are common for ceilings and attic spaces.
Insulation materials run the gamut from bulky fiber materials such as fiberglass rock and slag wool cellulose and natural fibers to rigid foam boards to sleek foils.
Rock wool generally costs more than fiberglass insulation.
R values vary based on the type thickness and density of the insulation material.
See the department of energy s doe ranges for recommended levels of insulation below.
The table below shows what levels of insulation are cost effective for different climates and locations in the home.
Insulation level are specified by r value.
Type and material of your insulation.
Bulky materials resist conductive and to a lesser degree convective heat flow in a building cavity.
The higher the r value the better the thermal performance of the insulation.
R value measures how resistant types of insulation are to heat flow.
The main factors that impact the cost are.
Square footage of your attic.
Fiberglass insulation rated at r 15 to fit a standard 4 inch wall costs around 0 50 per square inch as of 2013 according to fine.
Its expert engineering lets you create the most comfortable environment without compromising your design.
Inspecting your attic insulation.
Here are the most popular options for attic insulation along with a ballpark figure on pricing.
Gary ombler getty images.
Insulation is rated by its r value.
Insulation r values vary based on the type thickness and density of the insulation material.
You ll need about 12 inches of insulation material.
Contractor or insulation installer s fee.
According to home advisor insulating your attic can cost between 1700 to 2100.
For every type and material of insulation check the r value per.
Insulation decreases the amount of heat entering from outside when it s hot and traps warmth inside when it s cold.
Rigid foam boards trap air or another gas to resist conductive heat flow.
From schools to businesses to family homes our insulation works everywhere.
