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Roofing and Siding since 1985
Sat, May 16 2026,10:50am [ Login ] [ Main index ] [ Post a new message ] [ Search | Check update time | Archives: 1, [2], 3 ]
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Date Posted: Fri, Nov 08 2002, 6:52am
Author: Paul
Subject: Re: Roof Vent for muliple washroom vent fans
In reply to: A Roofer 's message, "Re: Roof Vent for muliple washroom vent fans" on Thu, Nov 07 2002, 6:38pm

Hi. Thanks so much for your info. It is not uncommon to use 3 or 4 inch PVC piping for bathroom fan applications. The flexible hosing has a greater chance of leakage and humidity and roof trusses don't mix. My hope was to use an upside down Y fitting that would prevent the exhaust from one fan to go down the pipe of the other. Plus I figure most fan must have some kind of closure to prevent outside air from coming inside. The only drawback that I could think of initially is that I might have 3 fans all trying to push air out of the same 3 or 4 inch hole. But then I figured if the the fans were small in size that maybe this was possible. My idea seemed so logical but I certainly understand and appreciate the information you gave me.

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