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Homeowners install shingles by nailing shingles to the roof in a staggered pattern over a prepared roof deck. The shingles overlap to protect the roof. More »

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Before installing asphalt shingles on a low-slope roof, check to make sure the slope is 2-in-12 pitch or higher. A lower pitched roof requires a different roofing material. Unless the underlying roof is in good shape, re... More »

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Enter the roof type, roof slope and roof ground dimensions into a roof shingle calculator to estimate the area of the roof. Use the value obtained to determine the cost of the required materials and cost of roof installa... More »

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Ice and water shields on roofs are designed to prevent leaks on the roof deck from rain and the formation of ice dams caused by melting snow and ice. Ice and water shields also act as an extra layer of protection at the ... More »

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It typically takes three bundles of standard three-tab asphalt shingles to cover one square on a roof. Therefore, a 40-square roof would require approximately 120 bundles of shingles. A "roof square" is equal to 100 squa... More »

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One bundle of shingles covers approximately 33 square feet of roof, depending on the size and weight of the shingles. Typically, it takes three bundles of standard-sized, standard-weight shingles to cover 100 square feet... More »

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For the construction of the roof itself, roofing rolls made of metal or asphalt are commonly used, as are shingles made of shake wood, asphalt or rubber. Builders need additional wood and nails, including roofing nails, ... More »

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