venting


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Old 10-10-02, 05:35 PM
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venting

probably an easy one..

I'm redoing all the plumbing in the bathroom. Running ABS everywhere, even for the venting..

a friend suggested that we use cast iron for the part of the venting stack that goes through the roof...(cast iron better for exposure to outside elements..)

is this typical to do? i'm curious what others have done and what is recommended..

thanks
 
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Old 10-10-02, 06:07 PM
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reiterate the reason for using Cast iron for venting.

possible UV/breakdown of the plastic.
 
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Old 10-10-02, 06:57 PM
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Use ABS through the roof, no problems.
 
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Old 10-11-02, 06:36 AM
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If your worried about UV, paint the vent pipe.
If you are in an area where you have snow, freezing conditions: you may want to expand vent one pipe size before going through the roof for snow - frost protection.
 
 

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