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Rockland County Roofing: Article About Insulating Materials

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Fiberglass insulation is an engineered material consisting mostly of thinly spun strands of glass that are loosely woven together and adhered to a paper backing. As an insulating material, fiberglass is used to increase a structure's thermal resistance so that heat cannot pass through it as easily. This type of insulation can also be used to dampen sound and increase a home's energy efficiency. Property owners can learn about the advantages and uses of fiberglass insulation as a way of making an informed decision about how to insulate their attics and roofing systems.

When installed by experienced Rockland County roofing contractors, fiberglass insulation could decrease a home's heating and air conditioning expenses by up to 40 percent. As one of most inexpensive types of insulation, fiberglass is a popular choice for New York homeowners who are on a budget. The material has a fantastic return on investment and will typically pay for itself after about two years through lower electricity and home heating costs. Because the material conserves 12 times as much energy as is used to make it, fiberglass can also be considered an efficient material with a low carbon footprint.

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In roofing applications, fiberglass insulation is typically spread across the attic's floor, side or knee walls and the sloped underside of the roof along the wooden decking. Its installation goes quickly because roofers can use staple guns to attach it to the wooden supportive structures within the attic.

Most rolled fiberglass batts come with a radiant backing. This backing confers an additional benefit by acting as a radiant barrier. The foil, which is usually made of aluminum, reflects heat. This further enhances a home's energy efficiency. This waterproof material also acts as a vapor barrier to stop the unwanted spread of moisture into a home's attic space. This can help the wooden joists and beams of the roof to last longer and resist problems caused by high humidity and condensation.

Another use for fiberglass insulation is in a roof's eyebrow. These traditionally hard-to-reach areas can be insulated with rolled fiberglass at the time of the home's construction. This section of a roof is otherwise difficult to reach because there is no attic space to access it through the interior side. Placement of insulation in this portion of the roof also aids humidity control.

Roofers can use different thicknesses of rolled fiberglass to achieve the U.S. Department of Energy's recommended thermal resistance value for the home. This value, called the "R-value", differs based on the materials, age and location of the house. The thicker the fiberglass, the greater its R-value.

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