How to Price a New Roof

Written by alexander callos
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How to Price a New Roof
Roofs can cost a lot of money depending on the size. (wood shingle pattern image by jimcox40 from Fotolia.com)

No matter what type of material is being used, a new roof can be very pricey. There are a lot of materials that go into a new roof, particularly when shingles are involved. The key to correctly pricing a new roof is determining the size of the roof and basing the materials off the total square-footage. Before a new roof can go up, the first step is gathering the materials and determining how much it will cost. In just a few easy steps, that cost can be figured out and the project can begin.

Skill level:
Moderate

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Things you need

  • Shingles
  • Tape measure
  • Calculator
  • Felt
  • Ice guard
  • Roofing nails
  • Hip and ridge shingles

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Instructions

  1. 1

    Measure the length and width of the roof to determine the exact square-footage of the new roof. Multiply the width by the length to get that number.

  2. 2

    Figure how many shingles will be used, based on the size of the roof. Three bundles of shingles is equal to 100 square feet. For a roof that is 2,000 square feet, 60 bundles of shingles will be needed. Multiply the number of bundles by the current price of shingles to get that cost.

  3. 3

    Decide on the type of felt underlayment that will be used. No. 15 felt covers 432 square feet and is half as thick as No. 30 felt, which covers 216 square feet. For a 2,000-square-foot roof, five rolls of No. 15 felt will be necessary. Add the cost of five rolls of felt together.

  4. 4

    Determine how much ice guard will be needed; ice guard generally comes in two-square-foot rolls 75 feet long and will go around the outside of the roof along the edges. Add the total measurements of all sides of the house to determine how much ice guard is needed.

  5. 5

    Measure the length of the ridge at the top of the roof to determine how much hip and ridge cap will be needed. One bundle of hip and ridge cap generally covers 33 lineal feet. Add the amount of bundles and figure in the current price of the hip and ridge shingles.

  6. 6

    Throw in two boxes of 25-pound roofing nails to complete the project. Add the total cost of those together with the cost of the hip and ridge shingles. Combine that total with the price of the ice guard, felt and the shingles to determine the final price of the new roof.

Tips and warnings

  • Pricing will vary depending on the manufacturer of these products and the time of the year.

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