What Sealant Should I Use When Replacing an RV Roof Vent?
Updated 07/29/2026 | Published 07/25/2026
Products Featured in This Question
Question:
Hi etrailer, I'm replacing the original roof vent on my fifth wheel with the Ventline Ventadome Roof Vent. Is Dicor the right sealant to use after I get everything bolted down?
asked by: Mike D
Expert Reply:
Hey Mike! Yes, Dicor Self-Leveling Lap Sealant # DC94SR is exactly what I recommend for roof vent installation. Whenever you're working on a roof, self-leveling sealant is almost always what you want to use. Install the # V2092SP-28 over butyl tape like # DC38SR first, then apply the Dicor over the mounting screws and around the flange to create a weatherproof secondary seal.
Which roof vent are you replacing?
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Product Page this Question was Asked From
Dicor 501LSW-1 Self-Leveling Lap Sealant - 10.3oz - White
- RV Roof Repair
- Sealant
- Self-Leveling Sealant
- Fiberglass Roof
- Metal Roof
- PVC Roof
- White
- Dicor
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