ENERGY EFFICIENT INSULATION - Puget Sound Energy

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RE-ENERGIZEYOUR HOME,YOUR COMFORT,YOUR SAVINGSKeeping your home comfortable is usually the biggestuse of energy. Insulation and efficient windows can trapin your winter warmth and shield you from the summersun. Choosing the right products and installing themcorrectly can be an investment that saves energy andmakes you more comfortable.About Puget Sound EnergyWashington state’s oldest local energy utility, PugetSound Energy serves 1.1 million electric customersand more than 760,000 natural gas customers in10 counties. A subsidiary of Puget Energy, PSEmeets the energy needs of its customers, in part,through cost-effective energy efficiency, procurementof sustainable energy resources, and far-sightedinvestment in the energy-delivery infrastructure. PSEemployees are dedicated to providing great customerservice that is safe, dependable and efficient. Formore information, visit www.PSE.com.2
KNOWING WHERE TOSTART YOUR SEARCHISRE-ENERGIZINGResources• PSE Energy Advisors: 1-800-562-1482• PSE.com/ReENERGIZE• energystar.gov• efficientwindows.orgEnergy IQLow-emittance (Low-E) window: This is a windowthat has a thin coating that makes it have a lowerU-factor (in other words, makes it harder for heat tomove through it).R-value: This is a measure of how much a surfaceresists heat transfer. So the higher the R-value,the better insulated and more comfortable you willtend to be. R-values range from R-0 (no insulation)to R-49 (an attic with approximately 16 inchesof insulation).Solar heat gain coefficient (SHGC): This isa measure of a window’s shading ability. A lowernumber will protect you more from the summer sun.Values may range from .2 to .8. If you are mainlyinterested in reducing your cooling needs in thesummer, choose a SHGC of less than .4.U-factor (or U-value): This is a measure of howmuch a surface allows heat to transfer through it.A lower U-factor window is better at keeping youcomfortable. Single-pane windows are approximatelyU-1. Most building codes and ENERGY STARstandards require windows to have a U-factor of atleast U-.30.Weatherization: This is the process of improvingthe “enclosure” around your home. This includesadding insulation in your attic, floors and walls;upgrading your windows; and sealing leaks.11
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ENERGY EFFICIENT INSULATION - Puget Sound Energy

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