Half my ductwork is probably 40 years old and the rest is 25-30 years old. Needless to say it's all pretty deteriorated. Also, my plenum is made of what appears to be some material that's not really ridged. It's in a bad spot and gets bumped/leaned on a lot and doesn't really hold up to this well.

I have a good amount of leakage in the attack and want to get it all sealed up.

Anyone have any experience with replacing a plenum and ductwork? I'm sure I can find ductwork locally or online but don't know where to look for a DIY plenum. Any advice is appreciated.

Note: I'll do this work in the fall/winter when the temps drop, not right now!

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Posted by Bullfrog

Institutionalized but Unevaluated

Member since Jul 2010

56565 posts

Posted on 8/24/15 at 1:35 pm to poochie

Prepare to bleed to death from 1000 nicks. I'd hire somebody for the sheet metal work.

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Posted by stout

Smoking Crack with Hunter Biden

Member since Sep 2006

167767 posts

Posted on 8/24/15 at 1:39 pm to poochie

quote:
Also, my plenum is made of what appears to be some material that's not really ridged.

Every residential plenum ever.

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Posted by wickowick

Head of Island

Member since Dec 2006

45842 posts

Posted on 8/24/15 at 1:50 pm to poochie

Wait 2 months to do this work...

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Posted by CHEDBALLZ

South Central LA

Member since Dec 2009

21997 posts

Posted on 8/24/15 at 2:42 pm to poochie

You can buy plentum at an AC Supply warehouse. They pretty standard. Ducts are pretty standard too, they come in a bag in variuos lengths.

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Posted by go_tigres

Member since Sep 2013

5178 posts

Posted on 8/24/15 at 3:33 pm to poochie

LINK

These folk should have everything you need if you choose duct board. Duct board, mastic, silver tape, etc. Sheet metal supply plenums are pretty easy to find online.

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