How to Use the Shingle Waste Calculator

Follow this step-by-step guide to efficiently use the Shingle Waste Calculator on your building code reports.

 
What Does the Shingle Waste Calculator Do?
The Shingle Waste Calculator estimates the amount of shingles needed for a roofing project.  This helps ensure that you buy the right amount of shingles and avoid overestimation, material waste and unnecessary expenses.

Steps for Using the Shingle Waste Calculator

1. Open the Waste Calculator

On your building code report, select the Waste Calculator tool.

Tip: if you access the Waste Calculator tool on your building code report, you will be able to save these calculations to your project.

You can also access the Waste Calculator by going to the Tools section


2. Enter Input Values

Provide all the required inputs for accurate calculations.

Screenshot 2024-11-27 at 11.20.49 AM

Here’s a breakdown of the fields:

  1. Roof Size (required) 
    Use the total roof area (removal squares or SQs) provided in your roof measurement report. If the area is in square feet (SF), divide it by 100 to convert it into squares.

  2. Ridge Length (optional)

  3. Hip Length  (required) 

  4. Open Valley Length (optional)

  5. Closed Valley Length (optional)

  6. Rake Length  (required) 

  7. Eave Length  (required) 

    Use the total eave length measured or provided in a roof measurement report.
  8. Roof-to-Wall (optional)

  9. Step Flashing  (required) 

  10. Bundles per SQ (required) 


3. Calculate Shingle Waste

Click Calculate to generate your shingle waste estimate.

Screenshot 2024-11-27 at 11.23.22 AM

Tips:

  • Once you have calculated the shingle waste estimate, click View Note for a detailed breakdown of your roofing waste estimate.
    • Click Copy Note to copy the calculations of the Shingle Waste Calculator.

Screenshot 2024-11-27 at 11.21.07 AM


 

4. Select a Rounding Method

Choose the rounding method that aligns best with your waste estimation.

  • Rounding to the nearest bundle assumes 3 bundles per SQ for Field, Ridge, and Starter shingles.


5. Create  Shingle Waste Report

Click Create Report to generate a PDF version of the estimate, which you can print or share.

Screenshot 2024-11-27 at 11.25.46 AM

Please Note: You can only create a PDF report of your calculations if you access the Waste Calculator on your building code report. 

  • The PDF report for the Shingle Waste Calculator should look like this: 
    Screenshot 2024-11-27 at 11.21.47 AM

Additional Resources


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