duct tape vent

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1

Originally Posted By: mike garcia
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Hi guys


This was a exhaust vent in the kitchen out to roof. It had duct tape


that was peeling off where it seals. Would you suggest there be a


metal flange or something installed around this or not make a big


issue. This vent can get hot though and the vent surrounded by wood.


Thanks


[ Image: http://www.nachi.org/bbsystem/usrimages/more/kitchen%20vent.jpg ]

2

Originally Posted By: mboehmer
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In need of repair - exhaust vent pipe not installled correctly.

3

Originally Posted By: Blaine Wiley
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It shouldn’t get too hot, but they could have at least used the metal duct tape nachi_sarcasm.gif

4

Originally Posted By: dedwards
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MIke,


Duct tape is good for taping a hostage’s mouth, or a temporary fix for a flapping shoe sole but it is not worth a flip for ductwork. That is a big assumption. Duct tape always (repeat always) comes loose once it gets hot. Blaine is right about using the foil tape (code tape) for ductwork, and whenever possible using “hardcast” or mastic on ductwork seams to seal it up real good. Looks like a home owner repair. Unfortunately we see flopping end caps on ductboard constructed ductwork all the time due to someone using " duct tape".

5

Originally Posted By: wcampbell
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Does this house belong to McGyver?

–
This Ole House-Home Inspections


William A. Campbell TREC # 6372


Serving the Texas Coastal Bend


(361) 727-0602 (home)


(361) 727-0055 (office)


(361) 229-4103 (cell)

6

Originally Posted By: bbadger
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http://www.ducttapeguys.com/ icon_wink.gif

–
Bob Badger


Electrical Construction & Maintenance


Moderator at ECN

7

Originally Posted By: Ryan Jackson
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If I’m not mistaken (and tell me if I am), any duct conveying heated air must have a UL181 tape. That has only been a code requirement for about 4 years though.

–
Ryan Jackson, Salt Lake City

8

Originally Posted By: mboehmer
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I believe IEC 2000 - requires all air duct transitions, joints and connections to be sealed airtight using a UL181 approved (or pending approval) mastic sealant for all types of duct material (i.e… sheet metal, ductboard, and flexible duct)


All seams on air handler(s), furnace(s), and plenum(s) must be sealed with mastic and reinforced with fiberglass mesh tape or UL181 tape.

Further, I believe that all ceiling penetrations must be caulked or foamed to reduce infiltration.