[RE-wrenches] TPO Roofing

[August Goers]

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

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

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

www.luminalt.com


On Wed, Aug 30, 2017 at 11:00 PM, William Miller <william at millersolar.com>
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 roofing is obsolete and no boots (flashings) were available.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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