Roofing Calculator

Roofing Calculator

Roofing Calculator

The following tools estimate the area of a roof, as well as the amount of materials necessary to construct a roof of a given area. The “House Base Area” is the area of land that the house covers, and for more complex shapes, it can be estimated using the Area Calculator.

Modify the values and click the calculate button to use

Roofing Area Calculator

Roof Pitch, Roof Angle

4/12 (1/12 to 24/12)

Roofing Material Calculator

Roofing Calculator – Estimate Roof Area & Materials Needed

The Roofing Calculator is a powerful tool designed to help homeowners, contractors, and DIY enthusiasts accurately estimate the area of a roof and the materials required for roofing projects. Whether you’re planning to install shingles, roll roofing, or underlayment, this calculator provides detailed measurements to ensure you purchase the right amount of materials while accounting for waste and buffer.

Key Features:

✅ Roof Area Calculator – Estimates roof size based on:

  • House Base Area (in square feet, yards, meters, etc.)
  • Roof Pitch (adjustable from 1/12 to 24/12)
  • Eaves Overhang (extension beyond walls)

✅ Material Estimation – Calculates required materials including:

  • Composition Shingles (bundles needed)
  • Roll Roofing (number of rolls)
  • #15 & #30 Felt Underlayment (rolls required)
  • Roofing Squares (standard measurement in the U.S.)

✅ Unit Conversions – Works with multiple units:

  • Square feet, yards, meters, inches, and centimeters
  • Feet, yards, meters, inches, and centimeters for eaves

✅ Buffer Adjustment – Includes a customizable waste buffer (%) to prevent material shortages.

✅ Cost Estimation (Optional) – Enter price per unit to estimate total material costs.

Who Can Use This Calculator?

  • Homeowners planning roof repairs or replacements
  • Contractors & Builders needing quick material estimates
  • DIY Enthusiasts working on roofing projects

How It Works:

  1. Enter house dimensions, roof pitch, and eaves overhang.
  2. Click Calculate to get roof area in multiple units.
  3. View the exact amount of roofing materials needed.

Save time, reduce waste, and plan your roofing project with confidence using the Roofing Calculator!

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