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Dryer Venting #153849 12/16/03 09:53 PM
Joined: Oct 2000
Posts: 3,964
Bill Addiss Offline OP
Member
Does the Building code require Metal venting for Dryers? (Residential Occupancy) Or is that a Manufacturer's recomendation?

Bill


Bill
Building Codes & Related References
Re: Dryer Venting #153850 12/16/03 10:14 PM
Joined: Aug 2003
Posts: 1,374
R
Ryan_J Offline
Moderator
I'm pretty sure the IRC requires it except at the appliance. I'll check tommorrow for you.


Ryan Jackson,
Salt Lake City
Re: Dryer Venting #153851 12/17/03 09:39 AM
Joined: Aug 2003
Posts: 1,374
R
Ryan_J Offline
Moderator
Hi Bill. Section M1501.1 of the 2000 IRC states that the duct shall be metal.


Ryan Jackson,
Salt Lake City
Re: Dryer Venting #153852 12/17/03 11:06 AM
Joined: Aug 2001
Posts: 7,520
P
pauluk Offline
Member
Is that solid ducting, or the Spiral-wound expanding type? The latter is very common here for dryer vents and such like.

Re: Dryer Venting #153853 12/17/03 12:06 PM
Joined: Feb 2003
Posts: 67
P
pwood Offline
Member
bill,
the umc section 504.3.2.1 says"domestic clothes dryer moisture exhaust ducts shall be of metal and shall have smooth interior surfaces"exception allows up to 6' of approved flexible duct to connect to the metal duct.flexible portion not to be concealed.

Re: Dryer Venting #153854 12/17/03 01:23 PM
Joined: Oct 2000
Posts: 3,964
Bill Addiss Offline OP
Member
How new is this requirement?

I can swear there's still plastic dryer venting kits on the store shelves, or that there was recently.

Bill


Bill
Re: Dryer Venting #153855 12/17/03 01:29 PM
Joined: Aug 2003
Posts: 1,374
R
Ryan_J Offline
Moderator
Bill: I'm not sure how new this requirement is, sorry.

In regards to your statement about product availability, this should not surprise you. Take a trip some time to a big box (or other) hardware store and see how many non-compliant items you find. The plumbing department, for example, has many, many items that do not comply.


Ryan Jackson,
Salt Lake City
Re: Dryer Venting #153856 12/17/03 02:07 PM
Joined: Oct 2000
Posts: 3,964
Bill Addiss Offline OP
Member
How many Electricians among us install the venting for Dryers and Exhaust Fans?

I've always maintained that it really wasn't my job and would only do it if no one else would or could. What have you seen, who usually does it?

Bill Addiss

[This message has been edited by Bill Addiss (edited 12-17-2003).]


Bill
Re: Dryer Venting #153857 12/17/03 02:26 PM
Joined: Oct 2001
Posts: 597
E
ElectricAL Offline
Member
In my area, venting requires a seperate permit. The owner-occupant or an HVAC contractor are the credentials required to pull the permit.


Al Hildenbrand
Re: Dryer Venting #153858 12/17/03 05:11 PM
Joined: Jan 2003
Posts: 4,391
I
iwire Offline
Moderator
I have never done the venting, I may supply the exhaust fan but not the venting. [Linked Image]

I only see the HVAC guys do that or once in a while the GC.


Bob Badger
Construction & Maintenance Electrician
Massachusetts
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