Replace or reseal skylight

Remove, clean away old sealant, inspect skylight and if ok, reseal and reinstall...

IB853347201 wrote:
Remove, clean away old sealant, inspect skylight and if ok, reseal and reinstall...

X2. There's no point replacing a good skylight just becsuse it's a little yellow.

As above. I had to do the same. I used Eternabond to seal it.

Without a picture, showing "cracked all the way around", it is hard to say if all old sealant should be removed. In any case, no sense to replace skylight, unless badly sun damaged (brittle). It takes a lot of product, to reseal a sky light, and towing before sealant cures, can cause roof flex, that may loosen/lift a little, on a new complete reseal. If not badly cracked/opened up, edge of skylight visible, I'd consider a good cleanup on old sealant, just adding new sealant covering cracks.

Jerry

Thanks all, Im gonna just reseal the crack if its not too bad and get on with it! Clean and protect the roof while im at it

You can also try one of the headlight restore kits on the skylight if the yellowing is bothersome.

Is it a true skylight or a clear vent? If a vent skylight they are extremely cheaply built. I took my cheap vent out and replaced with a fantastic fan.

I also renovated a old 2006 camper. I found that after many years of sun exposure all the plastic parts on the roof became brittle. So, I replaced all the plastic components with new ones. So if it were me and were planning on using the camper for some time, I would replace the sky light with a new one. Really not much more work than repairing and resealing the old one.

I would go Huntindogs route. Once you get the old sealant loose the hard part is done.