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wool) and cellulose are for sale in several different forms — as blankets in a roll or loose fill in a bag.
Choosing a form will depend partly on the place in which it will be used. Loose fill is necessary for walls in already-built houses. In most other places, the homeowner has a choice of forms.
Some insulation needs special treatments to prevent problems concerning the house itself and the family. They include possible moisture damage, odor, fire-related dangers, shrinkage, rodents or vermin and corrosion of metals, such as electrical light fixtures.
For example, in interior walls, the insulation must meet a fire-retardant code. It is usually covered with a fire-retardant material, such as gypsum at least one-fourth of an inch thick. Also, insulation around ceiling or light fixtures or other heat producing equipment, must leave a three inch space.
Before investing money in insulation, contact your local Extension office for a free Home Energy Computer Analysis that will tell you what conservation measures would be most cost effective in your home.
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