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Frequently Asked Questions
1. What makes Owens Corning "SureNail" technology different?
SureNail is a unique fabric reinforcing strip built into the nailing zone of the Duration series. It provides a visible "sweet spot" for installers and significantly increases the shingle's grip, allowing for a 130-mph wind warranty with fewer nails than competitor products.
2. Is the Oakridge shingle a good choice for Seattle?
Oakridge is an entry-level architectural shingle. While more affordable, it is thinner and lacks the SureNail fabric strip found in the Duration line. For the heavy winds and rain common in the Pacific Northwest, upgrading to a sturdier shingle is usually recommended.
3. What is Duration FLEX and why is it recommended for cold weather?
Duration FLEX is a polymer-modified (rubberized) shingle. The SBS rubber makes it much more flexible, which prevents the shingles from becoming brittle and cracking during winter installations or freezing temperature cycles.
4. Do Owens Corning shingles protect against algae streaks?
Most Duration shingles include StreakGuard™ Algae Resistance, using copper-lined granules to inhibit the growth of cyanobacteria (black streaks). However, be aware that the Duration MAX line typically lacks these copper granules and may not offer the same resistance.
5. What are Duration Designer shingles?
These have the same technical specifications as the standard Duration line but feature premium, multi-tone color blends. They are designed for homeowners who want their roof to have a high-contrast, "designer" look without the cost of luxury heavy-weight shingles.
6. Why is Duration MAX often unavailable in Seattle?
Duration MAX is a specialty thick shingle designed to mimic wood shake. Because it isn't produced at the same scale as the standard Duration line, regional availability can fluctuate significantly.
7. How does Owens Corning compare to CertainTeed rubberized shingles?
Both brands offer high-quality rubberized options. You can compare the Owens Corning Duration FLEX against the CertainTeed Landmark ClimateFlex to see which polymer-modified shingle offers the best value for your specific roof pitch and budget.
8. Will Owens Corning shingles help prevent attic mold?
The shingles themselves act as a barrier, but your roof's health depends on airflow. You should check for signs that your attic does not have proper ventilation to ensure moisture doesn't rot your decking from underneath your new shingles.
9. Can I install solar panels on Owens Corning shingles?
Yes, but since traditional solar racks require drilling into the shingles, it may affect your warranty. Consider the pros and cons of solar panels in Seattle before deciding whether to mount an array on your new roof.
10. Does the Owens Corning warranty cover the cost to remove my gutter guards?
No. If a warranty repair is needed, the manufacturer only covers the shingles. If you have premium protection installed, you should check if MasterShield guards need to be removed during roof work and who is responsible for the labor to reset them.
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