dryer pipe venting

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dave2664

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Laundry dryer vent is venting to garage causing sheetrock to decay and lots of lint. I would like to vent up and out to the flat roof of the gagage with a 4 inch peice of PVC. Any tips on a type/where to get a quality roof seal for the PVC pipe which will be protruding from the roof so as not to have water leak. Any help appreciated.

Dave
 

Dunbar Plumbing

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Use an Oatey roof flashing that has the rubber boot made into it. There are plastic roof flashings and aluminum. I'd use aluminum ones.

You'll have to use either 2 90's as a turn down or a solvent weld trap in 3 or 4" whichever size you plan on using.

Take the vent pipe up at least 18" out of the roof, longer if steeper so lint doesn't start laying on the roof.
 

Jimbo

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You are not allowed to use PVC for a dryer vent. It must be metal. Get solid galvanized single wall duct. Do NOT use any flexible stuff. It must be smooth wall. ( Only exception is up to 6 feet at the actual connection at the dryer can be flex)
 
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