Different Types Of Attics

The types of insulation that were most commonly made with asbestos are loose fill also called blown in insulation.

Different types of attics.

An attic may also be called a sky parlor or a garret because attics fill the space between the ceiling of the top floor of a building and the slanted roof they are known for being awkwardly shaped spaces with exposed rafters and difficult to reach corners. Multiple types of vents can work together to create an equal inflow of cool air and outflow of hot air in your house. The big disadvantage with spray foam is cost. The ceiling hatch is generally the size of a door and is set within a recessed panel.

Loose fill insulation comes in a variety of materials. I d blow insulation on the attic floor after air sealing of course. R value ratings vary among different types and forms of home insulations and among products of the same type and form. Attics unfinished walls ceilings and floors especially in hot climates reflective or radiant barriers work differently than most types of insulation and so its effectiveness is not.

The type of insulation you need depends on which type is currently installed and the required r value. The most common insulation materials are fiberglass cellulose and foam. For loose fill insulation each manufacturer must determine the r value of its product at settled density and create coverage charts showing the minimum settled thickness minimum weight per square foot and coverage area per. It s generally 3 to 4 times what you ll pay for blown cellulose or fiberglass.

For example ridge vents and gable vents function as both intake and exhaust vents. The most common type of attic access style is the attic ladder and hatch system. Low clearance attics with limited headroom for maneuvering during installation. Exhaust vents like attic fans ridge vents are primarily placed at the very top of the roof or the highest pitch where hot air gathers.

Attics with irregular or nonstandard joist spacing. If your attic or wall insulation is in batt or blanket form whether it s fiberglass cellulose or another material you generally don t have to be concerned about asbestos. If you don t have hvac and ducts in the attic spray foam on the roofline isn t really necessary. Attics where there is existing insulation to be topped since it fills gaps and joints well.

Attics with lots of obstructions and penetrations to work around.