Energy improvements through a Home Performance with ENERGY STAR can:
Sealing air leaks will make your home more comfortable and significantly reduce your energy bills.
Many air leaks in homes are more obvious:
But other areas are even more significant sources of air leaks:
Along with air sealing, your contractor may recommend that you add insulation. Many older homes are not well-insulated, and some have no insulation at all! Even new homes frequently have improperly installed or missing insulation.
Properly installed insulation in walls, floors, and attics:
Number one rule in air sealing – air seal before you insulate!
In houses with forced air heating and cooling systems, ducts are used to distribute conditioned air throughout the house. (You do not have forced a forced air system if you have radiant floor heating, radiators or electric baseboards.)
In a typical house, about 20 percent of the air that moves through the duct system is lost due to leaks, holes, and poorly connected ducts. The result is higher utility bills and difficulty keeping the house comfortable, no matter how the thermostat is set.
How do you know that your home has poorly performing ducts?
Benefits of Duct Sealing
A duct system that is well-designed and properly sealed can make your home more comfortable and energy efficient. Properly sealed ducts will also make the air in your home cleaner and healthier to breathe.
Simple Steps to Improving Duct Performance
Because ducts are often concealed in walls, ceilings, attics and basements, repairing them can be difficult. But there are things you can do to improve duct performance in your house.
Improving your air ducts
Your home performance contractor may recommend the following energy-efficient home improvements:
To further reduce your utility bills, your contractor may also recommend adding renewable energy systems such as: