Last updated: September 8, 2026
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Granule loss, color fading, minor curling, or brittleness are the signs your roof is aging,, but the decking underneath is solid.
An honest contractor will tell you if your roof falls here and point you to repair or replacement instead. Anyone who says “yes” to every roof is selling, not assessing.
Treating it then restores flexibility and water resistance and extends usable life for years, at a fraction of roof rejuvenation cost vs. replacement. Miss the window and let the roof fail, and your only option becomes the expensive one.
Being a candidate today doesn’t mean the clock stops. Periodic retreatment is what keeps a roof on the “aging but sound” side of the line, part of GoNano’s long-term push toward 30 to 45 year roof lifespans.
Less than you would think, because condition matters more than age. A well-maintained older roof can be a strong candidate, while a neglected younger one in a harsh climate may not be.
That is also why there is not one product for every roof: a certified installer matches the system to your roof’s condition, NuRoof Fortify for good-to-fair roofs, NuRoof Revive for more aged roofs, and NuRoof Boost as a cost-effective option, rather than treating every roof the same way. Read what Structural Roof Rejuvenation is for the full picture.
Knowing your roof is a candidate is only half the answer. From there, a Certified GoNano Contractor still has to match it to the right system, since a roof in fair shape doesn’t need the same treatment as one that’s more heavily aged.
Rejuvenation is designed for asphalt shingles, which are the most common residential roof, and it works across climates, from freeze-thaw regions to high-heat ones, because the underlying issue (shingles drying out and losing flexibility) is the same everywhere. What varies is how fast roofs age, which is exactly what an assessment accounts for.
A Certified GoNano Contractor inspects your roof, confirms whether it is a candidate, matches the right system, and gives you an exact quote, then, if you proceed, installs the treatment and issues a transferable warranty.
GoNano’s system is backed by more than $1 million in independent testing, which is covered in does roof rejuvenation actually work, including a Green Center (now Impact Chemistry) test in which a 15-year-old roof treated with NuRoof Revive outperformed a roof with brand-new shingles, plus UL 2218 Class 4 (impact), ASTM D3161 Class F (wind, rated to 110 mph), and UL 790 Class A (fire).
A single application carries a warranty up to 20 years, 100% non-prorated on the full treatment.
Structural Roof Rejuvenation works best when paired with a clear understanding of why roofs fail and what the alternatives cost. If you’re evaluating ice dam damage, you’ve likely come across everything from heat cables to full roof replacement. The guides below address the most common recommendations and explain what may actually be causing the problem.
Sometimes, if the structure is still sound. A roof can be old and still a candidate, or younger and already disqualified. An assessment settles it based on condition, not just years.
