VAfan wrote:
I have a ~1 inch crack from a middle edge up. Anyone fixed a small crack with success?
I’m thinking drill a hole at the top of the crack to stop it and cover it with lap sealant.
I also have cracks. I have repaired cracks successfully with Pro-flex RV caulk. Eventually I will replace the dome; that is the right thing. But I keep putting it off.
The plastic they make the domes out of is not sun-safe (bizarre - if anything gets lots of sun exposure a roof dome is right at the top) and they get very brittle. The first crack I got by pressing too hard. I patched it and later got another the same way. As it got weaker I also patched craze marks that looked like they could develop into cracks. Still no leaks (I check the ceiling near it regularly.)
Maybe next year is the year I'll do the right thing and replace it.