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Any idea why self leveling caulk shouldn't be used on skylights????

In their article in the latest Escapees Magazine: RV Roof Maintenance, DIY — Lap Sealant for Fiberglass





  • Final Thoughts - It is important to not use this self-leveling lap sealant on vertical surfaces as it only works on horizontal surfaces. Also, don’t use it on skylights.



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I don't use caulk on the roof anymore , except to fill a void left from cleaning the OEM stuff out . After that , I apply 'roof repair' tape ( like eterna bond ) .

I did most of the vents and the shower sky light about 5 years ago , and maybe a year later , the rest . I haven't regretted it for a second .

 

I do use caulk on vertical seams and some of that has to be redone , every so often .

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Any idea why self leveling caulk shouldn't be used on skylights???? In their article in the latest Escapees Magazine: RV Roof Maintenance, DIY — Lap Sealant for Fiberglass

I can't think of any reason and its interesting that the author doesn't support his opinion on this. While I've not owned an RV with a fiberglass roof, I have used self-leveling caulk on skylights on both metal and EDPM roofs and the same is true of RV manufacturers and repair shops.

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Any idea why self leveling caulk shouldn't be used on skylights???? In their article in the latest Escapees Magazine: RV Roof Maintenance, DIY — Lap Sealant for Fiberglass
  • Final Thoughts - It is important to not use this self-leveling lap sealant on vertical surfaces as it only works on horizontal surfaces. Also, don’t use it on skylights.

 

Our Winnebago has Dicor self-leveling all around the skylight in the shower.Came from the factory that way, and is still holding strong.

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I use "DYCO" product. Metal roof /alumina edge. Works good for me the last 16 years. Done touch up twice, on top of old. Comes white or silver. It is DYCO C-10 Flow seal, #29401 01011 (white) comes in cocking tubes. OU812

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