Why Attic insulation is so important?
Houses built before the energy crunch in the early 80, might just have a little bit of fiberglass insulation in the attic. 40% of a home’s energy loss escapes through the attic, Adding more attic insulation is one of the best ways to increase your home's energy efficiency, also delivers the greatest return on investment for most Canadian homes. The attic is usually where you can find some of the largest opportunities to save energy in your home, the coldest part of your house in the winter and the hottest area in the summer is the attic, On a hot summer day, the sun can heat the shingles on an average home’s roof to over 150 degrees! This intense heat then radiates into the attic itself. And if your attic is poorly insulated or insulated with old fiberglass, then the heat gets transferred directly into the rooms below, making your home uncomfortable.
how do i know if my attic needs more insulation
To find out if you have enough attic insulation, measure the thickness of the insulation. If it is less than R-30 (11 inches of fiberglass, you should need more,Also during the summer, your upper floor feels much hotter than the lower ones, you should need more.
What is the benefit for adding more attic insulation?
- Adding more attic insulation could typically reduce your heating and cooling costs by 20-40%.
- The homeowner will feel cooler in the summer and warmer in the winter.
Crawl space insulation
Insulating Basement & Crawl Space Walls
Basement walls and walls in unvented crawl spaces should be insulated to help prevent substantial heat loss. (A crawl space is an unfinished, accessible area below the first floor of a building. An unvented crawl space is part of the basement while a vented crawl space opens to the outside.) Remember, an uninsulated basement alone can account for 25% or more of a home's total heat loss.