How does hurricane or storm season affect my roof and warranty?

Last updated October 28, 2026

Short answer

Storm season does not change the warranty, and storm damage is excluded from it: a treated roof is not wind-proof or hurricane-proof, and no such claim is made here. The single exception in the published table is the hail line on Fortify Elite in the Good band.

What the warranty covers after a storm

The cover is written around the treated surface: premature peeling, curling or warping caused by the treatment, and water penetration through the treated shingle. A storm that lifts, tears or removes shingles is a different event, and it is excluded.

The exception is hail, and it is specific: 5 years of hail coverage on Fortify Elite in the Good band, sitting alongside 20 years non-prorated. No other row in the table carries a hail line.

What that means in practice

After a storm, the first question is whether the roof is still doing its job. Lifted or missing shingles, water inside, and granules washing out in quantity are all reasons to have it looked at.

If the cause is storm damage, the answer is a repair or an insurance claim on the property policy, not a warranty claim on the treatment.

Why we are careful with storm language

Terms like hurricane-proof and storm-proof are the easiest promises to make and the hardest to stand behind. This site does not make them, and the climate guidance is labelled as guidance rather than a guarantee of results.

What the treatment genuinely does is make the surface shed water and slow UV breakdown. That is a maintenance benefit, not a shield.

Before the season starts

Have the roof scored while the weather is settled, and deal with anything the assessment lists as a repair. Most storm damage starts where a roof was already weak: a lifted shingle, a failed flashing, a valley that was holding water.

If the roof is treated, keep the paperwork where you can find it. The registered terms name the band and the date, which is what any later conversation starts from.

If water appears after a storm

Send the details through the form, with where the water is showing inside and what the roof looks like above it. The remedy starts with a free inspection, and the first question is where the water is actually getting in.

If it is entering at a flashing, a vent or a valley, that is a repair rather than a treated-surface claim, and we would rather say so plainly.

Estimate where your roof sits

Two answers give an estimated zone and the coverage that comes with it. The measured Roof Health Score at the assessment decides the rest.

Roof age12 years

Roof condition

Estimated zoneFairRoof Health Score band 75-89 · estimate 78Sound, with the first signs of wear.

Single applicationFortify1x · one coat12 yearsFull coverage years 1-5, then reducingMax warranty value per sq ft: $1.60 / sq ft

Dual applicationRecommendedFortify Elite2x · two coats15 yearsFull coverage for the whole periodMax warranty value per sq ft: $2.30 / sq ft

Single applicationFortify1x · one coat12 yearsFull coverage years 1-5, then reducingMax warranty value per sq ft: $1.60 / sq ft

Dual applicationRecommendedFortify Elite2x · two coats15 yearsFull coverage for the whole periodMax warranty value per sq ft: $2.30 / sq ft

This is an estimate. Your exact Roof Health Score is measured at the free assessment and decides final eligibility and coverage.

Free assessment, no obligation. Six zones, one measured score.

Questions that follow on

Get my roof scored

The free assessment measures the condition, confirms the treatment and puts the price in writing. No obligation, and no phone call to schedule.

Source: GoNano warranty terms.