What are Owens Corning's architectural shingles?
The lineup in brief
- Duration: the core laminated architectural shingle, sold in a wide range of colors.
- Duration FLEX: SBS polymer modified for flexibility and Class 4 impact resistance.
- Duration STORM: Class 4 through a polymer backing material bonded to the shingle.
- Oakridge: a value-priced laminated shingle without the SureNail strip.
The impact-rated products are regional, so availability in North Georgia depends on the manufacturer's distribution. Check the manufacturer's site by zip code or ask a local supplier.
What SureNail is meant to do
The visible fabric strip gives installers a clear, wide target and reinforces the area where nails pass through both laminated layers. Owens Corning states that SureNail is not a guarantee of performance in every weather condition, and like any nailing zone, it only helps if nails are placed in it.
Warranty basics
Like most architectural lines, Duration carries a limited lifetime warranty for the original owner, with fuller coverage in the early years, plus separate wind and algae terms. Enhanced system warranties typically require a credentialed installer and specific accessories. Read the written warranty for wind speed limits and installation requirements.
How to compare any brand
Line up the same facts for every option: wind rating and what installation it requires, nailing zone design, impact class, algae warranty length, color availability in your area, and the installer's certification. Brand differences among major manufacturers are smaller than differences in workmanship. For more, see impact-resistant shingles in Georgia and roofing warranties explained.