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Old 11-14-2010, 09:40 PM   #1
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Replacing ductwork.

I've already replaced more than half of my original leaky and poorly insulated metal duct with flex duct, but the ductboard trunk itself is in poor shape. I know the supply shop will cut me any size and shape I want out of ductboard, but is this the best option? If so, what tools do I need and what advice can y'all give? I know I can put together just about anything with mastic and scrim, but I'd really like something I can be proud of.


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Old 11-15-2010, 03:39 PM   #2
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If I had a supply shop who would cut the ductboard for me and make it....I would do it in a heart beat. Just because its easier and more convenient. Remember if you cut ductboard will also have to buy the tools to cut ductboard which cost around $40-$50 bucks. And you may never use that tool again after your done. I mean I am not trying to discourage can do if you like! LOL Also check if your current size of the ductboard truckline is good enough or you need a bigger size for more cfm. Here's chart you can go by more or less


Last edited by kilosos2; 11-15-2010 at 03:53 PM.
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Old 11-15-2010, 06:06 PM   #3
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Yeah, getting the ductboard precut is going to make this a lot easier. I just don't want it to look like a bad paper mache project when I'm done. Also, is there any better product to use than duct board? It seems to be the only thing used down here, but the life expectancy sucks.
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Old 11-15-2010, 06:12 PM   #4
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You could use sheet metal duct. A bit harder to work with. Plus you need to insulate it. If its in an unconditioned space.
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