Spray Foam Energy Upgrades for Existing Homes
US Department of Energy testing has repeatedly shown that 50-70% of the energy usage in our homes is attributed to heating and cooling the indoor air.
THERMAL PERFORMANCE and AIR-LEAKAGE
US Department of Energy testing has repeatedly shown that 50-70% of the energy usage in our homes is directly attributed to heating and cooling the indoor air. These high costs are primarily due to unwanted air leakage and extremely poor thermal efficiency offered by traditionally used insulation products.
Your HVAC system provides heated or cooled air and your house uses or wastes it, in exact balance. Our heating and cooling equipment consumes about 14 cents of every dollar spent on energy to operate itself, (this is where the energy ratings come into play), but the home’s thermal performance and air sealing are responsible for the remaining 86 cents of every dollar spent. While increasing heating and air conditioning equipment’s energy efficiency ratings is worthwhile, the major savings are found in better thermal performance and controlling unwanted air-leakage.
AIR LEAKS VS. INSULATION
To reduce the cost of heating and cooling our homes, most homeowners assume that more insulation is the answer. The reality is, that air leakage is actually the biggest thief of your energy dollars.
Our homes leak air due to the difference between indoor and outdoor air pressures. The largest pressure differences are high and low in the building. Holes in these areas typically leak more air than holes in the middle. Warm air rises and leaks out the numerous unsealed areas at the top, while large leaks inward tend to be at the bottom of the structure, pulling in hot or cool air from outside, depending on the season.
Well sealed homes are considerably more economical to operate and much more comfortable to occupy. There are no cold drafts or hot areas, only controlled air flows throughout the house. In most homes unwanted air-leakage allows moist, heated air to migrate into cooler areas, such as insulated walls and ceilings. There, the vapor condenses, which leads to mold, mildew, rot and other moisture-related problems. Air-leakage is also a major source of allergy symptoms in most homes.
Existing homes can be upgraded to significantly increase energy efficiency and comfort.
By insulating and air-sealing the underside of the roof deck and the underside of the floor in the crawl space with Spray Foam, existing homes can typically save 30-40% on heating and cooling.
Homes in California today feature flexible air distribution ducts, located in the attic. These ducts have become the standard in new home construction because they cost less than metal ducts, but these ducts pose serious problems:
1. Flex Ducts Leak: According to the EPA, ducts are typically so leaky that more than 35% of the conditioned air is lost before it returns to the room the duct is trying to reach. This means that more than 20% of the energy used to condition the air in your home is being wasted. Improved energy efficiency and duct performance depends on completely sealing and insulating these ducts.
2. Flex Ducts are under-insulated: In our hot California summers, we are attempting to push cold air through the middle of a barely insulated and leaky pipe located in the middle of our superheated attics, where temperatures routinely reach 140+ degrees!
By installing Spray Foam Insulation in your attic and crawl space, we can create an air-seal which significantly reduces the heating and cooling energy costs for your home and the attic temperatures will be reduced from 140+ degrees to 70-80 degrees year round. This will keep your home considerably more comfortable, quieter and maintain healthier indoor air quality.
Spray Foam Energy Solutions - the intelligent choice for your home.