MM RV Repair

Sealant stages

Use this when judging photos or walking a roof. Recommend based on risk, not pressure. If one penetration is failing, others of similar age usually are too.

1

Good / Healthy

Smooth continuous bead, bonded on both edges, still pliable. Light dirt only.

No action. Note it for later.

2

Early weathering

Surface chalking, hairline crazing that does not go through, still mostly bonded.

Flag preventative reseal this season.

3

Moderate failure — recommend reseal

Visible cracks, shrinkage gaps, peeling at edges, harder when pressed. Water can already enter even without an interior drip.

Quote a partial or full reseal now.

4

Severe / failed — removal & reseal

Deep cracks, voids, missing bead, easy lift-off, staining or soft spots nearby. Scrape failed product, then new bead.

Do not overlay failed material.

Shop examples

Failed lap sealant at a cap seam — cracked, lifting, and missing sections

Removal & reseal

Cap / sidewall bead is crazing through, lifting in sheets, and leaving open voids. Overlay will not stick. Scrape, clean, then new self-leveling or non-sag as the surface requires.

Solar entry gland with weathered but still-adhered lap sealant

Partial / still holding

Solar gland bead is dirty and weathered but still bonded with no deep cracks or lift. Candidate for a targeted touch-up or monitor — not an automatic full strip.

Vinyl insert cues

Quote footage on the calculator (front/rear cap, camp & street sides, awning and slide topper rails). Black is stocked; white is special order.

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