Caulk roof gutter seam for fiberglass roof

[Pap, Penna]

Has anyone ever used PHENOSEAL vinyl adhesive caulk to seal the gap. I have used expensive silicone caulk, before, but it seems to dry and comes loose. Any thoughts other than Eternabond.

[Pap, Penna]

Has anyone ever used PHENOSEAL vinyl adhesive caulk to seal the gap. I have used expensive silicone caulk, before, but it seems to dry and comes loose. Any thoughts other than Eternabond.

[LK23]

The Winnebago approved product for sidewall seams is polyurethane caulk. I assume it holds better than silicone. I recently tried it on a small area but it hasn't been applied long enough to evaluate the results.

[NeilV]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by Pap, Penna:
Has anyone ever used PHENOSEAL vinyl adhesive caulk to seal the gap. I have used expensive silicone caulk, before, but it seems to dry and comes loose. Any thoughts other than Eternabond. </div></BLOCKQUOTE>

Phenoseal hardens and gets brittle in the sun. Use the Winnebago specified caulk or a good quality butyl gutter seal.

[Pap, Penna]

Thanks for the come back, I use GeoSel (White) very plyable and sticks very well, recommended by RV dealer here where I live. Thanks again.

Pap

[Moder2]

Winnie Customer Contact told me any 100% silicone.

Prior to that one someone else's advice was to use a self leveling product like Dicor. Didn't last and it wasn't easy to work with on the side roof seams. Re did the job with Silicone and have had good luck since.

John