Air seal Zip to glycol pipes
estebang
| Posted in Energy Efficiency and Durability on
I am putting solar water heaters on my roof. The roof is made up of 7/16 Zip (which is my air and vapor barrier), 2 layers of rigid insulation then flat 2×4 air channel and 5/8 plywood. I know the zip tape will not withstand the heat temp of the copper glycol pipes. It is (2) half inch pipes. I think the temp in the pipes can get up to 250 degrees. What have others done to seal these holes?
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Replies
Use commercial sealing boots for roofing. You can get these with more than one boot in a single assembly if needed. The usual way to do this is to cut the boot back to the size pipe you need, then secure the boot to the pipe using a single pipe strap. These boot assemblies are made for exactly the purpose you describe.
One example is here:
https://www.amazon.com/EAGLE-Flexible-Roofing-Flashing-Boots/dp/B07KGH5Y13/ref=sr_1_30?crid=Z33Q28AH9KYM&dib=eyJ2IjoiMSJ9.mRGMbzlWEaiqBuVVFW-Wh6Bypo6qiZlJpkWSAu2kNaV5AylyDziL3GZz5L4j1f9UNMOwCQqwAs_MNuHpXziSUH_0FiH2jmKI01ZmHaDG73NPwf0N_nRNBqs1a_febB2X6kFnAyU9doqEukNhdeLdDrT_hG5dd4pKTNZN-JzLzXv57C_lQa2J2BCMLh17otPIWS8c55wIxgWzT_YB403TXg15ohihkn6fhESvvWsL-o4_MhNSP1x1tq-k7zDMT3LCCnteeegMRXz1KUfQxWR4gC5DtANbVdE83NnhyMVZjAs.23h5-q43WyrKj2X0FLrt3C11dSvCT9FmjLZeRHiJQ78&dib_tag=se&keywords=roof%2Bseal%2Bboot%2Btwo&qid=1726746940&sprefix=roof%2Bseal%2Bboot%2Btwo%2Caps%2C142&sr=8-30&th=1
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