Hidden air leaks cause some of the largest heat losses in older homes. Common air leakage sites include:
See how snow melts from the roof
Scan the building walls and roof with an IR detector
Energy Saving Investments – GAS & ELECTRIC
Remodel/rearrange: - These items have a cost.
Here are important energy-saving ways to increase the value of your home and provide significant energy savings over the long-term.
Insulation is your primary defense against heat loss through the house envelope. However, putting insulation into a house after it is built can be pretty difficult. If there isn't any insulation, the best option is to bring in an insulation contractor to blow cellulose or fiberglass into the walls.
Attic. Adding insulation to an unheated attic is easier than insulating existing walls and is likely to have a greater impact on comfort and energy use.
Basement. Materials that could be damaged by moisture, such as fiberglass batts and cellulose, should never be used to insulate a basement. Interior vapor barriers can also be very damaging because they prevent basements from drying to the inside. Interior basement insulation should start with rigid foam installed against the basement walls. If you are considering finishing your basement and using it as a living space, seek the advice of an experienced professional.
If you have a crawl space, it should be sealed, not ventilated. To do this, use 6-mm thick polyethylene sheeting as a moisture barrier to cover the ground and seal tightly to walls and columns. Then use rigid foam to insulate the foundation walls.
About one-third of the home total heat loss usually occurs through windows and doors. If your existing windows have rotted or damaged wood, cracked glass, missing putty, poorly fitting sashes, or locks that don't work, you may be better off replacing them.
If your windows are generally in good shape, it will probably be more cost-effective to boost their efficiency with inexpensive products purchased from your local building supply or hardware store. Whether replacing windows in an older house or choosing windows for a new house, your decisions on what type of windows to buy will be among the most important decisions you will make in terms of energy use. Because of the impact windows have on both heat loss and heat gain, proper selection of products can be confusing. To get the most up-to-date information on what to look for in energy-efficient windows for your home.