Last updated: September 11, 2026
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Before you let anyone treat your roof, hold the product to four checks:
The best formula fails if it’s applied poorly. Certified, trained applicators and a real roof assessment matter: it helps to know the questions to ask a roofing contractor.
Any product worth your money should pass all four. Here’s how GoNano and Fresh Roof line up against them.
Fresh Roof’s published materials describe a soy-based “GreenSoy” formula that replenishes the oils shingles lose as they age. GoNano’s NuRoof does that same oil-replenishment work and then adds a step the oil-only approach doesn’t have: nano-penetrating technology that bonds with the shingle at the molecular level, so the reinforcement becomes part of the shingle rather than a layer on top. That added step is what Structural Roof Rejuvenation is; GoNano isn’t “instead of” oil rejuvenation: it’s oil rejuvenation plus nano reinforcement.
Fresh Roof states it is third-party lab tested for performance attributes such as granule adhesion, flexibility, penetration, and aging. GoNano’s system is backed by more than $1 million in independent testing tied to recognized industry classifications UL 2218 Class 4 (impact), ASTM D3161 Class F (wind, rated to 110 mph), and UL 790 Class A (fire) plus testing at Green Center (now Impact Chemistry) in which a 15-year-old roof treated with NuRoof Revive outperformed a roof with brand-new shingles. The distinction to weigh: performance-attribute lab testing versus named, insurer-recognized classifications you can look up.
Fresh Roof states it is third-party lab tested for performance attributes such as granule adhesion, flexibility, penetration, and aging. GoNano’s system is backed by more than $1 million in independent testing tied to recognized industry classifications UL 2218 Class 4 (impact), ASTM D3161 Class F (wind, rated to 110 mph), and UL 790 Class A (fire) plus testing at Green Center (now Impact Chemistry) in which a 15-year-old roof treated with NuRoof Revive outperformed a roof with brand-new shingles. The distinction to weigh: performance-attribute lab testing versus named, insurer-recognized classifications you can look up.
GoNano has invested more than $1 million in independent, third-party testing of its Structural Roof Rejuvenation system. The most striking result: in testing at Green Center (now Impact Chemistry), a 15-year-old roof treated with NuRoof Revive outperformed a roof with brand-new shingles. Treated shingles have also earned:
The highest impact-resistance class, relevant to hail damage and your roof.
Wind resistance rated to 110 mph.
GoNano also appeared on Canada’s Dragon’s Den (Canada’s equivalent of Shark Tank), where the technology drew multiple investment offers. Credentials tied to recognized standards are verifiable which is what makes them meaningful. A warranty is only as strong as the testing behind it.
Roof rejuvenation works when it’s the right product on the right roof, applied properly and when its claims are backed by evidence you can check. Hold any product to the same four standards: recognized-standard testing, a readable warranty, certified application, and an honest candidacy check. Measured that way, GoNano restores like a rejuvenator and reinforces like a category of its own: with testing tied to recognized classifications and a warranty up to 20 years, 100% non-prorated on two-coat systems. It’s also worth seeing how the cost compares to replacement.
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.
Both restore aging shingles from within and cost far less than replacement. Fresh Roof uses a soy-based formula with a 6-year transferable warranty and third-party lab testing. GoNano does the oil-replenishment work too, then adds nano reinforcement, and carries independent testing to recognized classifications (UL 2218 Class 4, ASTM D3161 Class F) with a warranty up to 20 years, non-prorated on two-coat systems.
Fresh Roof publishes a 6-year limited warranty, transferable, and its materials suggest scheduling additional treatments after that point to keep extending roof life. GoNano’s warranty runs up to 20 years from a single two-coat Fortify installation, stays 100% non-prorated for the full term on two-coat systems, and is transferable. So beyond the length itself, the difference is one application under a long warranty versus repeat reapplications to reach a comparable span. Terms depend on the system and coat count.
More than $1 million in independent testing: UL 2218 Class 4 (impact), ASTM D3161 Class F (wind, rated to 110 mph), and UL 790 Class A (fire) plus testing at Green Center (now Impact Chemistry) in which a 15-year-old roof treated with NuRoof Revive outperformed a roof with brand-new shingles.
It’s a fair question to ask any provider. GoNano is applied by Certified GoNano Contractors who assess your roof first; ask your contractor how the treatment interacts with any coverage you currently have before you proceed.
No, the category is legitimate, but products vary. Skepticism usually comes from replacement-only contractors or from overhyped products that don’t back their claims. Hold any product to a simple standard: recognized-standard testing, a readable warranty, and certified application.
No. NuRoof replenishes the oils aging shingles lose the same principle as soy-based rejuvenation and adds nano reinforcement on top of that. Its performance is validated by independent testing to recognized standards, so the claims don’t rest on marketing language.
Non-prorated means the coverage doesn’t shrink over time. Many warranties quietly reduce their payout after about year 10. On GoNano’s two-coat systems, coverage stays at 100% for the entire term.
GoNano-treated shingles have earned UL 2218 Class 4 the top impact class, relevant to hail and ASTM D3161 Class F wind resistance rated to 110 mph in independent testing.
It’s designed for asphalt-shingle roofs that are aging but structurally sound, not for active leaks or failed roofs. You have a Certified GoNano Contractor assess your roof, match the right system and coat count, install the treatment, and issue a transferable warranty backed by GoNano’s 420+ contractor network.
