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Duct leakage questions
Do you guys duct seal and/or tape the seams of the snap lock on ductwork?
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Don't do installs anymore but back in the day yes and no. Should you? Yes. It's a very cut throat market in residential. 9 times out of 10 the low bid gets the work and I promise you his bid will not include duct sealing.
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Mastic all seams, better than most duct tape. There is also matic tape but it is cheaper to buy a bucket and brush but a bit messy it you dont give it time to dry before wrapping/hanging.
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I use a combo of paint on mastic & mastic tape.
depends on what is being sealed & if it has to be wrapped
or how close duct take offs are on plenums.
having both on hand makes it simple.
The cure of the part should not be attempted without the cure of the whole. ~Plato
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Ok thanks for the responses. I personally prefer to duct seal it with paint on mastik because its the cheapest, but sometimes i use the foil tape, i would never use mastik tape its like $40 a roll. My boss insists we do it though i was just curious because i had the theory that its not a leak spot unless you undersize your ductwork. The way i see it is that the air wants to take the path of least resistance which is down the duct to the supply or return, why would it want to fight its way through a tiny crack if the duct isnt undersized.
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 Originally Posted by Datsik
Do you guys duct seal and/or tape the seams of the snap lock on ductwork?
what for...... and never
it was working.... played with it.... now its broke.... whats the going hourly rate for HVAC repair
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some of us just care that much.... 
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where do you think the leakage goes...... outside.... don't think so...... done hundreds of houses zero problems ....and zero foil tape....lol
it was working.... played with it.... now its broke.... whats the going hourly rate for HVAC repair
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Umm yes.... it leaks outside..... Thats why we seal the ducts....mastic is better than foil tape...lol
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Originally Posted by bigtime
Umm yes.... it leaks outside..... Thats why we seal the ducts....mastic is better than foil tape...lol
o.k ...seal away....
it was working.... played with it.... now its broke.... whats the going hourly rate for HVAC repair
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will do..... and its not just because of pride.....its cause its code....
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I hear ya not code hear on residential....commercial sometimes depends on the engineer..... i don't disagree with you just not common practice here...
it was working.... played with it.... now its broke.... whats the going hourly rate for HVAC repair
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