air conditioning duct forum

How do I repair a gash in an AC (air conditioning) junction box in my attic

Blu , Monday, 16th of August 2010 04:00:41 AM

Hello- In my attic, l have a junction box w/ a few AC ducts branching from 
Blu
it.l discovered a 6'' straight gash on top of the junction box which is 
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allowing cool air to escape into the attic.How should l properly fix 
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this?Is it as simple as patching it w/ duct tape or should l do / use 
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something else?Thanks! ~Slacker
 
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Bubzieboo , Tuesday, 17th of August 2010 05:26:55 PM

1.) Don't use 'Duct' tape. Its good for almost everything else  
Bubzieboo
except heating ducts(runs).  
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The constant heating and cooling of the duct causes most sticky tapes to  
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fall off within 12 months. Their is an aluminum tape made specificlly for  
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the heating & cooling business for use on metal duct work.. Try the 'Big  
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Box' stores or a heating contractor for a roll.  
 
 
 
 
 
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miss puffy wuffles , Wednesday, 18th of August 2010 04:16:33 AM

There is a very sticky tape that has aluminum backing and gooey  
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junk on the face. It works very well and lasts for years. Ask for it at a  
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lumber yard or hardware store. Duct tape will work in a pinch but won't  
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last as long.  
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honey comb , Thursday, 19th of August 2010 12:35:40 AM

clean it and repair with aluminum tape.  
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