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TOPIC: Flashing

Metal Roof Exhaust Flashing

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I am looking for information about flashing for the exhaust from a Tankless Water Heater as it passes through a metal roof. The current flashing is a rubber like material. Are these types of flasings good for the elevated temperatures with the exhaust from these heaters.
Guest User

1/20/2010
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Some are designed for high temp. You can also use an exhaust pipe with an insulated wall Todd Miller
Todd Miller
Isaiah Industries, Inc.

1/21/2010
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Before: HVAC guys cut holes in the roof for the pipes. This was a temp. fix.
Guest User

1/23/2010
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After: I made a soldered boot from galvanized steel to fit over the pipes. Then painted to match. The holes here where already cut so I had no choice, but you should try to arrange your Z-Bar so water flows around it easily - possible a diamond shape over a seam. This is one option.
Guest User

1/23/2010
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