But your state s energy office or local utility may offer product rebates discounts or other financial incentives for insulating.
Most energy efficient attic insulation.
The four step approach outlined below considers the whole attic as a system.
R value is a measure of insulation s ability to resist heat traveling through it.
So when it comes time to add or improve insulation in your house look for the one that has the most appropriate r value that works best for your.
The way your attic retains or releases heat can affect your entire house and implementing a simple set of solutions can make your attic more energy efficient.
Now that you ve air sealed your attic and basement check your attic insulation levels and add more if necessary.
How much to buy.
If you put an air permeable insulation material over a hole in your ceiling you may have comfort indoor air quality durability and efficiency problems.
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.
See more on different types of insulation.
The attic is the easiest place to add insulation to improve your comfort and the energy efficiency of your home.
See a state by state directory of such programs here.
On average roll insulation costs less than other types of insulation source.
Addressing all forms of heat gain loss and moisture related concerns is essential to creating an efficient healthy cost effective and sustainable efficient attic system.
Depending on your geographic location the size of your.
Loose fill insulation is usually less expensive to install than batt insulation and provides better coverage when installed properly.
Sometimes however insulation isn t enough.
Measure your attic s square footage.
However if you re remodeling an existing home spray foam is probably the best option for maximum energy efficiency.
Energy efficient insulation while an important consideration is actually only one solution to attic heating and cooling issues.
Before you ever get insulation anywhere near the attic though make sure that you get the air leakage sites sealed up.
The efficient attic solution.
Most federal tax credits for weatherizing your house and boosting its energy efficiency expired in 2011.
Insulation level are specified by r value.
Loose fill cellulose or fiberglass can also be sprayed into existing structures.
Bulky materials resist conductive and to a lesser degree convective heat flow in a building cavity.
Loose fill or batt insulation is typically installed in an attic.
Rigid foam boards trap air or another gas to resist conductive heat flow.
The higher the r value the better the thermal performance of the insulation.