Upgrade Your Insulation - October 30th 2006
Upgrading your home's insulation is one of the easiest ways to reduce your energy bill while keeping your family warm this winter. Insulation and ventilation work together to make your home comfortable.
R-value: Many homes have insufficient insulation, another source of heat loss. Average home should have between R-28 (8 inches) to R-40 (12 inches) in insulation in the attic, more in colder climates. R-Values Insulation is measured in "R-Value" which is the capacity of an insulating material to resist heat flow. The higher the R-value, the greater the insulating power!
Types of Insulation:
Fiber glass and Cellulose - The two types of materials commonly used for insulation in today's homes: Fiber glass insulation is spun from molten sand and recycled glass into fibers. Cellulose insulation is made from recycled newspapers, which is then treated with a chemical flame retardant. Both fiber glass and cellulose insulation can be made into "loose-fill" insulation, which can be blown into areas such as attics and walls with a blowing machine. Fiber glass insulation also comes in "batts" which are pre-cut pieces of insulation that vary in height and length. All unfinished walls, floors and ceilings
Mineral Wool - Better fire resistance and soundproofing qualities than fibreglass. Roxul's mineral wool insulation - Flexibatt thermal insulation for exterior walls and Safe and Sound Noise and Fire Protection for interior walls. Unlike most insulations you may be familiar with that are made from glass fibre, mineral wool is made from a combination of natural basalt(or volcanic) rock and recycled slag. Ideal for areas susceptible to moisture. Visit Roxul's website at www.roxul.com.
Rigid Board Insulation - Commonly made from fiberglass or polystyrene and comes in a variety of thicknesses with a high insulating value. This type of insulation is used for flat roofs, unvented low slope or flat roofs, basement walls and as perimeter insulation at concrete slab edges.
Spray Foam Insulation - Applied by a professional applicator foam with special equipment. Once sprayed into wall, ceiling, and floor cavities it expands to fill every crack and crevice. Acts as a complete insulation and air barrier to minimize air leakage and seal the building envelope. Commonly used for retrofits. Unfinished attic floors and hard to reach places.
Reflective foil insulations - Foil faced. Radiant barriers are sometimes used in buildings to reduce summer heat gain and winter heat loss.
Check attic insulation - Ventilation is especially necessary in unused attics where insulation has been added to prevent heat from leaking out of the rooms underneath the attic in the winter. Ventilation plays the role in controlling attic moisture during the winter, and hot air during the summer.