1. What is Cedar Shingle Size Calculation?

The cedar shingle size calculation determines the appropriate shingle size based on desired exposure and length, ensuring proper roof coverage and weather protection.

2. How Does the Calculator Work?

The calculator uses the shingle size formula:

Where:

• \( Exposure \) — Visible portion of each shingle (inches)
• \( Length \) — Total length of the shingle (inches)
• \( Overlap \) — Recommended overlap between shingles (typically 2 inches)

Explanation: The formula calculates the optimal shingle size to achieve the desired exposure while maintaining proper overlap for waterproofing.

3. Importance of Proper Shingle Sizing

Details: Correct shingle sizing ensures proper roof coverage, weather protection, and longevity of the roofing system while maintaining aesthetic appeal.

4. Using the Calculator

Tips: Enter desired exposure in inches, shingle length in inches, and overlap (default is 2 inches). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is typical exposure for cedar shingles?
A: Standard exposures range from 5 to 7.5 inches, depending on shingle grade and roof slope.

Q2: How does overlap affect shingle size?
A: Greater overlap requires larger shingles to achieve the same exposure, providing better waterproofing but increasing material costs.

Q3: What are common cedar shingle lengths?
A: Common lengths are 16, 18, and 24 inches, with premium grades available in longer lengths.

Q4: Does roof pitch affect shingle size?
A: Steeper pitches may allow for greater exposure, while low slopes require more overlap and potentially larger shingles.

Q5: How does shingle grade affect sizing?
A: Higher grade shingles (No. 1 Blue Label) can typically have greater exposure than lower grades due to better quality and consistency.