7 Signs Your Roof Needs Treatment
Most BC homeowners don't notice roof deterioration until it's expensive to fix. Here are the warning signs to watch for — and what to do about them.
Granules in Your Gutters
Act SoonAsphalt shingles are coated with granules that protect against UV radiation. When you see granules collecting in your gutters or downspouts, your shingles are losing their primary UV shield. This is the #1 early warning sign that rejuvenation is needed.
Shingles Look Faded or Discoloured
Act SoonFaded, bleached, or uneven-coloured shingles indicate significant oil depletion. The oils that give shingles their colour are the same ones that keep them flexible and waterproof. Colour loss = oil loss.
Moss or Green Patches
Act NowMoss on your roof isn't just cosmetic — it's actively damaging your shingles. Moss roots penetrate the asphalt surface, lift shingle edges, and trap moisture. Left untreated, moss causes premature failure.
Black Streaks or Algae Staining
Act SoonDark streaks running down your roof are caused by Gloeocapsa magma — a type of algae that feeds on the limestone in your shingles. It's not just ugly; it's eating your roof.
Shingles Are Curling or Cupping
Act NowCurling shingles (edges turning up) or cupping (middle sinking) indicate significant oil loss and brittleness. This stage is still treatable with GoNano — but waiting longer risks structural damage.
Your Roof Is 8–15 Years Old
Ideal WindowEven if your roof looks fine, the 8–15 year mark is the ideal time for GoNano treatment. Shingles have lost significant oil content but still have structural integrity — treatment at this stage delivers maximum life extension.
Granule-Bare Patches Visible
Act UrgentlyIf you can see bare asphalt on your shingles — areas where granules have completely worn away — your roof is in urgent need of treatment. Bare asphalt degrades rapidly under UV exposure.
Common Questions
What are the signs my roof needs help but not replacement?
Granule loss in gutters, moss or algae growth, slight shingle curling, faded colour, and a roof aged 8–18 years are all signs your roof needs treatment — not replacement. These indicate oil depletion in the asphalt, which GoNano nano-treatment is specifically designed to reverse.
How do I save an aging roof without replacing it?
GoNano roof rejuvenation is the most effective way to save an aging asphalt shingle roof. Applied at the right time — typically when the roof is 8–18 years old — it restores lost oils, stops granule loss, and extends roof life by 10–15 years. One visit, no tear-off, no disruption.
What roof maintenance can I do to avoid replacement?
Three things make the biggest difference: (1) keep moss and algae cleared, (2) keep gutters clean so water drains properly, and (3) apply GoNano nano-treatment in the 8–18 year window. Together these can add 10–15 years to your roof's life and delay or eliminate the need for replacement.
Is there a way to restore shingles instead of replacing them?
Yes — GoNano NuRoof™ penetrates the shingle at the molecular level to replenish the oils that keep asphalt flexible and waterproof. It's not a surface coating — it's a genuine restoration of the shingle material itself. For qualifying roofs, it's the most cost-effective option available.
Spotted Any of These Signs?
Book a free inspection. We'll assess your roof's condition and tell you exactly what it needs — no pressure, no obligation.
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