1. What is Shingle Bundle Coverage?

Shingle bundle coverage refers to how much roof area one bundle of shingles can cover. Standard 3-tab shingles typically cover 33 square feet per bundle, while architectural shingles cover about 25 square feet per bundle.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( \text{Roof Area} \) — Total area to be covered in square feet
• \( \text{Coverage per Bundle} \) — 33 sq ft for 3-tab, 25 sq ft for architectural shingles

Explanation: The calculation divides your total roof area by the coverage area of one bundle, then rounds up since you can't purchase partial bundles.

3. Importance of Accurate Calculation

Details: Accurate shingle calculation ensures you purchase enough materials without significant overage, saving time and money on your roofing project.

4. Using the Calculator

Tips: Measure your roof area accurately in square feet, select the appropriate shingle type, and always add 10-15% extra for waste and mistakes.

5. Frequently Asked Questions (FAQ)

Q1: Why do different shingle types have different coverage?
A: Architectural shingles are thicker and heavier than 3-tab shingles, so fewer are needed per square foot, resulting in less coverage per bundle.

Q2: Should I round up or down?
A: Always round up to the nearest whole bundle to ensure you have enough materials.

Q3: How do I measure my roof area?
A: Multiply length by width for each plane, then sum all planes. For complex roofs, consider professional measurement.

Q4: What about waste factor?
A: Add 10-15% to your total for cutting waste, starter courses, and mistakes, especially on complex roofs.

Q5: Can I use this for other roofing materials?
A: No, this calculator is specifically for asphalt shingles. Other materials have different coverage specifications.