Understanding the Differences in Duration® Shingles
In early 2012, Owens Corning enhanced and changed the color blends of Duration® shingles to create the more vibrant TruDefinition® colors. Additionally, the length of the shingles was increased from 38 3/4″ to 39 3/8″. These changes mean that the newer TruDefinition® Duration® shingles do not match the color or size of Duration® shingles produced prior to 2012.
Identifying Pre-2012 Duration® Shingles
- Color and Vibrancy:
- Pre-2012 Duration® shingles have a different color formulation that is less vibrant than the TruDefinition® Duration® shingles.
- SureNail® Nailing Strip:
- Pre-2012 Duration® shingles can be identified by the mylar SureNail® nailing strip.
Key Issues When Mixing Shingles
- Color Mismatch:
- The enhanced TruDefinition® colors do not match the original Duration® colors, leading to a noticeable color difference on the roof.
- Size Discrepancy:
- The newer TruDefinition® Duration® shingles are 5/8″ longer than the pre-2012 Duration® shingles, creating size inconsistency.
Recommendations for Repairs
- Avoid Mixing Shingles:
- Due to differences in size and color, avoid mixing TruDefinition® Duration® shingles with pre-2012 Duration® shingles.
- Trimming for Fit:
- If a repair must be made on less than a full slope with pre-2012 Duration® shingles, trim all TruDefinition® Duration® shingles to fit the space left by the removed shorter shingles. Do not overlap the ends of the shingles.
Best Practices for Contractors
- Full Slope Repairs:
- For the best visual and structural results, consider replacing the entire slope with TruDefinition® Duration® shingles to maintain uniformity.
- Consult Manufacturer Guidelines:
- Always refer to Owens Corning’s installation instructions and guidelines when performing repairs to ensure compliance with best practices.
Conclusion
Mixing TruDefinition® Duration® shingles with pre-2012 Duration® shingles is not recommended due to differences in color and size. Proper handling and adherence to manufacturer recommendations are essential for maintaining the roof’s appearance and functionality.
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Disclaimer: This article is intended for informational purposes only. For professional advice, consult experts in the field.
