Posted 2008-08-05 4:58 AM (#89031) Subject: caulking roof
Member
Posts: 18
Location: concord nc
I have a question on what is the best caulk to use when caulking a roof. And any tips to make it easier. I have a 2002 Sundowner and the caulk is starting to break down on the roof. Also is it safe to actually stand on the roof. I sort of felt like it wasn't because with me pressing on the roof it would flex.
Posted 2008-08-05 8:43 AM (#89041 - in reply to #89031) Subject: RE: caulking roof
Expert
Posts: 5870 Location: western PA
The best caulks are the marine grade polyurethanes, not the household silicones sold in the big box stores. Many threads are available for specific products and applications, if you do some searches.
Posted 2008-08-05 11:50 AM (#89056 - in reply to #89031) Subject: RE: caulking roof
Expert
Posts: 2957 Location: North Carolina
I have a 2000 Sundowner. The roof caulk was breaking down too.
The best and easiest method of removing the old caulk is a knife to cut the majority off. Then use a wire brush wheel in as powerful a side grinder or drill you can get. The wire brush leaves a clean metal surface for the new caulk.
Sundowner uses this caulking on the exterior of their trailers. It's very durable.
The caulk used is a moisture cured polyurethane. Manufactured by Sika Corp.
30800 Stephenson highway
Madison Heights, MI 48071, 248-577-0020
The name is Sikaflex - 221 SF, Product code is 220-242
The OEM color used is "AL Gray"
You might also try marine / boat supply as a place to purchase it too.
caulking roof
