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cenergy 03-29-2013 11:16 AM

Insualtion around vent Pipe
 
I have just moved my laundry up to the 2nd floor in my home. The plumber installed an in wall vent for the drain. It's on branch off my drain that goes up a few more feet and has one of those special PVC fittings.

I would like to insulate with fire/sound insulation. Can this be done around the vent or will hinder the air flow and slow my drain?

Thanks,
Cb

fetzer85 03-29-2013 11:58 AM

Insulating around the outside of a vent pipe would not have any affect on its venting abilities.

TheEplumber 03-29-2013 12:37 PM

Quote:

Originally Posted by cenergy (Post 1148437)
I have just moved my laundry up to the 2nd floor in my home. The plumber installed an in wall vent for the drain. It's on branch off my drain that goes up a few more feet and has one of those special PVC fittings.

I would like to insulate with fire/sound insulation. Can this be done around the vent or will hinder the air flow and slow my drain?

Thanks,
Cb

If he installed an AAV- it needs to breath air from the room. Insulate the pipe only

cenergy 03-29-2013 01:33 PM

It is an AAV, and is in a stud bay. It's about at the 6 foot mark in a 7 1/2 bay. Is 1 1/2 feet of air enought breathing room if I insulate all the way up to the vent?

TheEplumber 03-29-2013 02:15 PM

Quote:

Originally Posted by cenergy (Post 1148499)
It is an AAV, and is in a stud bay. It's about at the 6 foot mark in a 7 1/2 bay. Is 1 1/2 feet of air enought breathing room if I insulate all the way up to the vent?

It needs air from the room. So if you sheetrock the wall leave an opening and put a simple fresh air grill/louver on it. Keep the insulation clear of the AAV

joecaption 03-29-2013 03:26 PM

Why do you feel the need to insulated a vent line? There's nothing in it but gas, it's not going to freeze.
That vent also needs to remain accessible, it can not be behind a wall.

cenergy 03-29-2013 04:08 PM

I am insulating the room behind the wall. its a bedroom.

Ghostmaker 03-29-2013 08:37 PM

That AAV must be accessible does he have a grill or something so you can replace it once it fails and starts stinking?

jagans 03-29-2013 09:53 PM

Just install a simple return air grill right where the AAV is. That gives you accessability, and free air. Put the louvers up


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