I will be installing a 16' run of 3.25 x 10" galvanized duct work near the ceiling of my kitchen which will eventually be covered by a chase I will build around it.
I want to make the run secure and prevent any possible vent noise rattling when I use the range hood fan.
Does each section of stack have to be screwed together with machine screws or will the metal ducting tape suffice??
How is each 5' stack of ductwork secured to the plasterboard wall?? Thanks for your help!
Vic
Try as you might you may find that your vent fans will be noisy anyway. It is the fan itself and the actual air movement that makes noise, not the ducting so much.
The best solution I have seen for noise reduction is to put the fan outside. So long as the fan is in the room it will be noisy regardless of what you do with the vent. Of course some fans are less noisy than others.
You need screws in my opinion. Tape is fine but who knows how well it holds up inside an enclosed chase?
So long as it is attached at the hood and attached where it leaves the house and all the stacks are screwed to each other then I see no reason to fasten it to the wall.
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