Rigid foam boards trap air or another gas to resist conductive heat flow.
Insulation ratings for attic.
Insulation ratings are measured in r values per inch of thickness.
Calculate additional insulation needed.
While there are additional considerations such as venting and moisture problems to take into account when you insulate under floors the united states department of energy recommends an r 25 rating in cold climates and an r 11 in warmer parts of the country.
Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer.
Loose fill or batt the common term for blanket insulation.
The attic is the easiest place to add insulation to improve your comfort and the energy efficiency of your home.
First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.
R value is a measure of insulation s ability to resist heat traveling through it.
For diy attic insulation you ve got two choices.
An r value tells you how well a type of insulation can keep heat from leaving or entering your home.
Bulky materials resist conductive and to a lesser degree convective heat flow in a building cavity.
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.
Inspecting your attic insulation.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
So it s time to pay close attention to what s happening up there.
Now that you ve air sealed your attic and basement check your attic insulation levels and add more if necessary.
The r value per inch for different types of insulation varies depending on the.
Insulation r values vary based on the type thickness and density of the insulation material.
The reflective outer layer creates a moisture and humidity resistant barrier to allows the users to lead a comfortable life even in extreme weather conditions.
R 38 is the industry standard and the minimum thickness for r 38 is 12 inches.
The attic stairs insulation cover by miloo feature a double air bubble lining.
Measure the area needing insulation.
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.
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.
The higher the r value the better the thermal performance of the insulation.
Both can be added to uninsulated attics or layered over existing material.
