Instant Roof Nui Crack

EPDM or TPO flat roofs develop "alligator cracks" where water pools. Traditional patch goo washes away. Instant polymer sheets bond to EPDM without special cleaners.

One specific type of "Nui Crack" that Instant products are uniquely good at fixing is Thermal Splitting.

This happens on commercial flat roofs (TPO/EPDM) and old metal roofs. When the temperature drops from 100°F to 30°F overnight (common in continental climates), the roof membrane shrinks and splits like a frozen lake. Instant Roof Nui Crack

These cracks are hairline but long (sometimes 20 feet). Standard caulk cannot flex enough to fill these.

Solution: Use a high-solids Instant Roof Liquid (like Dicor or Flex Seal Liquid) brushed into the split. Because it remains flexible (rubber), it expands and contracts with the temperature. This is one scenario where an "instant" bottle does a better job than a roofer with a torch (which might burn the membrane). EPDM or TPO flat roofs develop "alligator cracks"


If you used a cheap $10 aerosol can as your "Instant Roof Nui Crack," you have roughly 6 months. Start calling roofers for quotes now. Do not wait for the next rainy season. Roofers are cheaper in the summer (dry season) than during the winter storms.


Properly addressing roof cracks involves: If you used a cheap $10 aerosol can

If you repair a crack with the Instant method, but ignore the root cause, the crack will return next year. Cracks usually happen because of: