Bay Area Energy Upgrade Attic Insulation R Value

By looking at the map here you can compare how the bay area s recommended r values zone 3 compare to the rest of the country.

Bay area energy upgrade attic insulation r value. Wood frame wall cavity. To get more detailed recommendations use the department of energy s insulation calculator. But newer homes in central and southern arizona are insulated to ratings of r 30 to r 38 while newer homes in northern arizona generally have attic insulation at r 60 because of colder winters. Recommended insulation levels for retrofitting existing wood framed buildings.

This attic features newly installed insulation and radiant barrier foil. How attic insulation can help to lower your energy bills. Bayren is rolling out a water energy efficiency program in partnership with utilities throughout the bay area. For san francisco recommended insulation r values in an existing home are as follows.

The program provides on bill financing which means you pay for your upgrades with the savingsyou get for common water efficiency measures such as irrigation faucets and efficient toilets. Find out if your home is elligible. Check what type of insulation your home has and where it is insulated and you can get a good idea of the efficiency of your insulation. A higher r value means that the insulation material is a better insulator.

Proper installation is the key to maximizing r value. According to reputable bay area attic insulation installers proper insulation works by limiting the amount of air moving throughout the home. Existing 3 4 inches of insulation. To choose the best insulation for your home from the many types of insulation on the market you ll need to know where you want or need to install the insulation and what r value you want the installation to achieve.

The attic floor is filled to an r value of r 49 which provides optimal energy efficiency at 16 75 inches. Other considerations may include indoor air quality impacts life cycle costs recycled content embodied energy and ease of installation especially if you plan to do the. For example an inch of fiberglass insulation has an r value of about 3 7 whereas sprayed polyurethane can rate above a 7. Bge says that increasing insulation thickness from 2 to 3 inches r 5 to 8 to 14 r 30 inches can save you 95 to 145 per year in 2010 for every 1 200 square feet of ceiling area.

Some of the upgrades that can allow you to receive as much as 1 000 in rebates include attic insulation air sealing duct sealing hot water pipe insulation and combustion safety testing. Add insulation to attic.