November – Types of Insulation
Types of Insulation and their uses:
There are four basic types of insulation: loose fill, batts and blankets, rigid board and spray foam. The most appropriate type of insulation to use will vary based on the type of construction, the extent of the rehabilitation planned and applicable code requirements.
- Loose Fill Insulation
- Loose-fill insulation includes loose fibers or fiber pellets that are blown into building cavities or attics using special equipment. This is a great option for existing homes that need insulating. It usually fills nooks and crannies easier, reduces air leakage better, and provides better sound insulation.
- Batt and Blanket Insulation
- This type of insulation is best suited to a standard joist, rafter, or stud spacing of 16 or 24 inches. Generally, batt insulation is the least expensive wall insulation material but requires careful installation for effective performance.
- Spray Foam Insulation
- Spray foam insulation is commonly used for retrofits; good for irregularly shaped areas and around obstructions. Spray foam forms both an insulator and an air barrier, it can be cost competitive with batt insulation because it eliminates the steps for air-tightness detailing, (such as caulking, applying house wrap and vapor barrier, and taping joints).
- Rigid Board Insulation
This type of insulation is used for reproofing work on flat roofs, on basement walls and as perimeter insulation at concrete slab edges, and in cathedral ceilings.
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