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Dryer Duct - You make the call

jar546

jar546

CBO
Joined
Oct 16, 2009
Messages
12,724
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Not where I really want to be
Code compliant?

Why or why not?

IMG_1337.JPG
 
IMO, this becomes part of the exhaust duct system and therefore doues not meet the limitations for the transition duct allowed to bve flexible. I think this should be rigid pipe and I would also look at the way the connection are made. Will it restrict air-flow and collect lint? Section M1501.1, 2003 Edition.
 
% % % %

Also, Section R309.1.1: - Duct Penetration:"Ducts in the garage and

ducts penetrating the walls or ceilings separating the dwelling from the garage

shall be constructed of a minimum No. 26 gage (0.48 mm) sheet steel or

other approved material and shall have no openings into the garage."

% % % %
 
IMC 504.2 Duct is penetrating the garage seperation wall.

IRC M1502.2 needs to be min 3ft from the door opening.

R309 requires 26ga metal

pc1
 
Last edited by a moderator:
Pcinspector1 said:
IMC 504.2 Duct is penetrating the 1-HR garage seperation wall and should be fire rated.pc1
Click to expand...
There is no requirment in the IRC for a 1-hr garage seperation. Has your jurisdiction specifically adopted and amened the IBC/IMC to apply to single family residential?
 
Darren,

No, we have not amended our adopted code. 1/2" gyp would be required on garage wall side.

1-HR removed from post.
 
I thought that flex could only be used for the initial non concealed connection at the dryer. Am I crazy? I will have to read the dryer vent section again. I agree with the 26 gauge steel for garage duct penetrations and would also require that the penetration be sealed.
 
Well, Daddy-O.. this is not concealed... other than the howdy-do into the garage, that needs to be sealed, I don't have a particular issue with it. G2439.2 .. I don't know that M1502.6 specifically prohibits it.. (it should)
 
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