Morris County Roofers: Article About Attic Insulation
Blown in insulation is a popular choice among homeowners who want to have their attic floors insulated. It is used when the owner does not plan to use the attic as a living space or storage area for out of season items. This kind of insulation must be professionally installed so that it can properly do its job of protecting the home from condensation while lengthening the lifespan of the roofing system. Homeowners can work with experienced Morris County roofers to choose the best type of loose fill for their home's needs.
Cellulose is the most popular type of blown in insulation. It is made out of small pieces of recycled newsprint or wood fibers. Its fibers are also treated with a fire retardant chemical. In most New Jersey homes, 12 inches of this insulation is needed to reach the U.S. Department of Energy's recommended R value. The most common problem with blown cellulose insulation is settlement. This process causes the insulating materials to lose up to 20 percent of its initial R value. Because of this, the roofers typically install a few extra inches of the material to account for the expected rate of settling.
Mineral or rock wool spun insulation is another popular type of loose fill.
The roofers from Peter W Smith Construction of Morris County NJ would be happy to answer any questions you have about roof repair or siding repair.
It is made out of recycled industrial rock waste, which helps to keep materials out of the landfill. With an R value of about 3.2 per inch, a typical house will need about 12 inches of the blown in insulation. This kind of insulation only settles a little and loses about three percent of its R value.
Fiberglass has the lowest R value of all types of blown in insulation, but it is also the least expensive. It is made from about 30 to 50 percent recycled glass. Due to its low R value, the attic will need about 16 inches of the material to meet the federal guidelines for energy efficiency. The fiberglass experiences a minimal amount of settlement, and individual fibers of the fiberglass are prone to becoming airborne. When breathed in or swallowed, the materials can be an irritant to the skin and cause breathing problems. If the homeowner ever needs to access the attic space or roofers need to get in to install or repair a vent or whole house fan, they will need to wear a face mask, goggles, gloves and long sleeves and pants to protect their mouth, eyes and skin from the fiberglass.