Caulk

[MakinSmoke]

What kind of caulk should I use on the fiberglass roof joints and around the vents, AC, etc.

[MakinSmoke]

What kind of caulk should I use on the fiberglass roof joints and around the vents, AC, etc.

[wrongway]

You can use the EDPM Lap Sealant. That is what has been used on the roof already. You can either clean off the old or just go right over the existing sealant. Put on a little thicker, so that the lap sealant will self-level itself and will flow into the cracks or pop outs.
We use Dicor White Self-Leveling Lap Sealant 501LSW Formulated for 1/4" to 3/8" bead. Price is right at $7.90 a tube.
Do not recommend silicone.
Tom

[MakinSmoke]

Got it, thanks. Now, my leak is coming in through (literally) the satellite receiver switch. Is there a trick to getting the dome off so I can get to the hole?

[Workshop]

Have been using the EDPM for several years and have been pleased with the results. The self leveling is great for the flat areas but Dicor also makes a non-sag for those vertical areas.

[Max1]

Virgil,
I have no good advice as I have had no experience with the domes.

[ChiefJohn]

Jo (Virgil's better half!),
Please take some pictures of Virgil on the roof doing the caulking and email to me!

Virg,
Good luck with the repair -- it's not a laughing matter when the rain decides to enter your nest. We had the same thing happen with our after market King Dome TWICE! and it was installed at SC. Finally determined it was a small pin-hole that somehow escaped the caulking gun. Marilyn was placing bowls to catch the water and cussing, fussing, and discussing why I NEEDED a satellite dome.

[MakinSmoke]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">You can use the EDPM Lap Sealant. That is what has been used on the roof already. You can either clean off the old or just go right over the existing sealant. Put on a little thicker, so that the lap sealant will self-level itself and will flow into the cracks or pop outs.
We use Dicor White Self-Leveling Lap Sealant 501LSW Formulated for 1/4" to 3/8" bead. Price is right at $7.90 a tube. </div></BLOCKQUOTE>

Wrongway or anyone,
I guess I'm getting more and more like RockinTom.....an**, er detail oriented.

Dicor's webpage says...
"The Dicor Lap Sealant is compatible with the EPDM sheeting and offers excellent adhesion to aluminum, mortar, wood, vinyl, galvanized and concrete."
I don't have an EDPM sheeting roof, I have molded fiberglass.

Now, my question is do I still use EDPM lap sealant to patch a molded fiberglass roof?

I apologize for questioning you but none of this is common sense to me. I have no experience at all in this area.

[Butch50]

Virgil,

Seeing as it is now Monday morning why don't you give Jack at SC a call and see what they recommend on the fiberglass roof. That is what I would do to make sure I get what they think is best.

[MakinSmoke]

Butch,
You were right. Got to Jack right away and he said the EDPM lap sealant was right for molded fiberglass roofs also.

Now the issue is finding a tube. Dicor not stocked by Home Depot (at least in Key West) Jack said that je "believed" that any kind of self-leveling caulk that was not silicone would work. Off to the hardware now.