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Bergen County Roofing: Article About Roof Insulation

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In any home, heat flows from warmer areas to cooler areas until both areas of a household are the same temperature. When the outside air is hot, the heat flows to the interior of a building, making it necessary for occupants to use air conditioning to be comfortable. The opposite occurs during winter when the outside air is colder than the inside air. Insulating a building will decrease the exchange of hot and cold air.

Insurance companies require insulation to meet certain standards and won't provide coverage if those standards aren't met. They will only approve specific kinds of insulation, made by specific manufacturers, and the product must be installed in accordance with industry standards. Local and state building codes also regulate the kinds of insulation that can be installed. The experts at Bergen County roofing companies can help residents choose an insulation that reduces heat flow as well as insulation that satisfies all the various requirements.

Insulation may be rigid or flexible. In addition, it may be loose or compressed, and contractors choose to install materials made naturally or from synthetics. Several factors determine the type of insulation to use. Among them are the structure of the house, the roofing material used and the climate. The choice also depends on whether insulation is installed on a building under construction or added to an existing roof.

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A flat roof can potentially develop moisture problems if the wrong kind of insulation is used or if the correct kind is not properly installed. Moisture problems can also occur with sloped roofs, although not quite as easily as they can with flat roofs. That's because rain will run off a sloped roof rather than make puddles. It's also more difficult to remove snow from a flat roof, and it is often allowed to accumulate.

Because proper installation affects the R value of insulation, the Residential Energy Services Network (RESNET) has developed a grading system for installers. Grade I is the highest quality installation. To meet that grade, there must be no gaps around protrusions, and the compression or fill must be consistent. Fastening the insulation to the structural parts of the roof must also be done correctly.

Grade II installations will have a few gaps, but no more than two percent of the insulation can be missing. Grade III installation has an unsatisfactory number of gaps and is missing excessive amounts of insulation. It may not be securely fastened and can lead to premature deterioration of other roofing materials.

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