caulk/sealant questions

[tbred]

Hello to all! Hoping to get up on the roof to inspect things as soon as we get a thaw. TT is a 2013 and we have had it less than a year and have sealed nothing yet.

I have many questions regarding type/application of caulk and I'm hoping I understand things correctly. So, I need the self leveling for flat surfaces/around vents ect.? I'm not too sure where the other non-sag type would be used on a roof application, perhaps on edges? How about where the edge of roofing material meets trailer wall?

Now on to silicone, nowhere near roof, trailer body only? And my final question is that the windows on tt appear to have no caulk around them, the flange is tight against the trailer but it seems that could be a place for water intrusion. Is that normal?

Thanks for any advise, just want to make sure I order/use the proper materials for the job.

[tbred]

Thanks for the great info Old-Biscuit, just what I needed!

[Old-Biscuit]

The Dicor Self Leveling Sealant is great for roof seams/around vents etc.
But doesn't work very well on vertical/sidewall needs.

Dicor makes a non-sag sealant.

For vertical/sidewall sealant..... ProFlex Flexible RV Sealant by Geocel Corp. NOT FOR USE ON RUBBER such as EDPM roofs

The windows, compartment doors, furnace panel, water heater frame etc. used a butyl tape sealant when being installed and unless you are removing to repair no need for extra sealant around the edges.

Silicone should NOT be used.........silicone leaves behind an all but permanent coating to which no sealant, including fresh silicone, will adhere. If a silicone has been used it must be completely removed using a silicone remover.

[tbred]

Thanks for the link Wmoses, I'll check it out.

I worded that incorrectly mlts22, I was going to use the Proflex sealant not silicone. Is that stuff okay that you know of?

[mlts22]

Avoid silicone, period.

[wmoses]

Suggest paying a visit to this webpage. Lots of good information and answers. Good luck.