Most houses built prior to 1980 do not have sufficient insulation and many older homes have none at all. Loose-fill insulation tends to settle over time and batts can become detached and fall out of place, causing gaps in coverage and lowering your home’s resistance to heat flow.
It is the nature of heat to move from warmer to cooler spaces. During the winter, heat moves from the warm living spaces of your home to adjacent unheated areas such as attics, basements, crawl spaces, garages and the outdoors. The opposite effect occurs during the summertime; heat flows from the outdoors into the air-conditioned areas of the house. Insulation decreases heat gain in the summer and heat loss in the winter.
Adding insulation to your attic is one of the easiest and most cost effective ways to reduce energy consumption and to improve the comfort of your home. 33% of winter heat loss and 60% of summer heat gain occurs through the attic.
