August, While compatible, I mentioned in another recent thread that Geocel 4500 lacks testing to ASTM standards. If you have an AHJ that cares about that kind of stuff, you might want to pass it by them first. Geocel 2300 and 3300 do meet ASTM standards per the manufacturer.
Jason Szumlanski Florida Solar Design Group On Thu, Aug 31, 2017 at 10:26 AM, August Goers <[email protected]> wrote: > Hi William, > > Although we are seeing PVC more frequently than TPO these days, I still > think there are lots of TPO products readily available. This is the > standard type of vent boot we see roofers supply and install via heat > welding (depending on the brand of original roof you are working on): > > http://www.gaf.com/Roofing/Commercial/Products/Single_ > Ply_Roofing/EverGuard_TPO_Single_Ply_Membranes/EverGuard_TPO_Accessories# > ventboot > <https://mailtrack.io/trace/link/4dff17f052ada0010e9f379f96aaae4f17a46449?url=http%3A%2F%2Fwww.gaf.com%2FRoofing%2FCommercial%2FProducts%2FSingle_Ply_Roofing%2FEverGuard_TPO_Single_Ply_Membranes%2FEverGuard_TPO_Accessories%23ventboot&userId=1613865&signature=d6e1dcf0fd773b28> > > The Chem Link E-Curb system can also work on a TPO roof but you must use a > TPO primer per the manufacturer's instructions: > > https://www.chemlink.com/e-curb > <https://mailtrack.io/trace/link/9631bd80efaad843744d71ef844d4e0dedc81c7b?url=https%3A%2F%2Fwww.chemlink.com%2Fe-curb&userId=1613865&signature=08fdce66875c988a> > > I believe both a Chem Link M1 and Geocel 4500 can be used with primed TPO, > but there may be more TPO-specific sealants available. > > August > > > *August Goers* > > Luminalt Energy Corporation > > o: 415.641.4000 <(415)%20641-4000> > > www.luminalt.com > <https://mailtrack.io/trace/link/505fa707356649eca8f6bdb298565be6007a1aa1?url=http%3A%2F%2Fwww.luminalt.com&userId=1613865&signature=f7c4de36cbd72c71> > > > On Wed, Aug 30, 2017 at 11:00 PM, William Miller <[email protected]> > wrote: > >> Friends: >> >> We are working what is purported to be a TPO roof. We were told the >> roofing is obsolete and no boots (flashings) were available. >> >> I'd really appreciate a brief run-down on the material and practices, if >> anyone is willing. If it would be easier and I'm the only one who cares, I >> could call someone who has worked with it and we could have a brief chat. >> >> Here are some basic questions: >> >> 1. How do you seal in a stanchion? >> 2. Are boots available? >> 3. Is there s caulk you can use? >> >> We will be using a licensed roofer, but I suspect the one we inherited >> might be BSing me and I need to educate myself. >> >> As always, thank you in the extreme for any guidance. >> >> William Miller > > > >
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