Ductboard Fabrication
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- Опубликовано: 12 ноя 2020
- Part 1 of our series on installing HVAC Systems & duct systems in residential new construction. We'll be installing a five ton & a two ton heat pump system with matching return & supply duct systems in a 4700 square foot home.
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Great Job!
Very interesting and informative video!! Well done!
That’s a pretty slick machine.
Great video. That machine is awesome
The machine works really well!
Very informative to me my friend
I like
This video made me itchy lol
what is a good spray adhesive to make sure that duckboard fiberglass won't go airborne. which is a good spray that doesn't off gas toxic chemicals?
check out the duro dyne website
That black coating you see on the newer style ductboard is both adhesive sealant and antimicrobial coating
I have a 24.5" x 21" i forget the math to make the outside dim. same ? 1.5 in board. yes I have done it but forget everytime. add 3 or subtract 3. Thank you.
So, with 1.5” duct board, if your inside dimensions are 24.5x21 the outside dimensions should be 27.5 x 24.
Nice work as always... Any difference between the orange ductboard vs the yellow ductboard? or is it just different manufacturer?
Different manufacturer. Orange is an Owens-Corning product and the yellow is a Johns Manville product and is “no-itch”.
Duct board is fiberglass and that's what your breathing in every time the unit comes on so none of it is good
Anyone know what the machine is called?
www.certainteed.com/insulation-equipment/products/sg-220-duct-board-grooving-machine/
I would also use outward clinch staples in the flaps at a minumum. Ideally you should also mastic the seams.
We've done that in the past. We're following SMACNA 7th edition guidelines here.
“Closures systems are a vital element in the proper as- sembly of fibrous glass duct systems, providing both the structural connection and sealing of seams and joints. Only those closure systems that comply with UL 181 or UL 181 A are suitable for use with rigid fibrous glass duct systems. Listed closures include
1. Pressure Sensitive aluminum foil tapes.
2. Heat activated aluminum foil/scrim tapes.
3. Mastic and glass fabric tape system (GFM).
Model codes and project specifications require that non-metallic duct construction, which includes fibrous glass ducts, conform to UL181, Class 1 Requirements. Under UL 181 A listing procedures, an individual closure system may be qualified for use on all manufacturer's boards which meet the UL 181 requirement. UL 181 A tapes are imprinted for identification.
We've been following method 1 for 15 years with no issues in craftsmanship or code officials. Staples are great for use with the heat activated tape and the GFM system because something needs to hold the flaps in place while you apply those methods. Notice though that MASTIC is only approved for use WITH glass fabric tape, that is if you're following SMACNA guidelines for your local code like our state does.
@@AIRMANHVAC We always use staples and tape, mainly because it's faster to fab as am assembly line one guy stapling one taping, and it looks better.
But you are correct. Only one UL181 compliant closure method needs done.
There's a lot of guys that use tape AND mastic which is honestly pointless. It doesn't need BOTH and honestly, it looks like crap finished product wise lol.
Nice work butt iv used for years and now coming back to haunt me good luck tho the shelf like is shit
No one wants to know how to make plenums and trunks with a $100,000 machine. They want to know how to make it without that machine.
That’s a 14k machine….I’ll gladly make a video using hand tools and a square.
I am duct fitter sir I have you vacancy tell me
Not trying to be an ass but you should ware a mask designed to protect your lungs from fiberglass, I know guys on high flow 02 for the rest of their lives not that old from breathing in fiberglass without protection because it “wasn’t cool” it’s no joke, your health is all you got.
Yea Brian, agreed. Sometimes we do and sometimes we don’t. Depends on the airflow through the building at the time.
That is cool but that's the worst stuff to make ducked work out of.
That “ductwork” is code in the southern areas
@@domrod1579 if you're cheap!! Hard pipe is the way to go! If you can't do it right then dont do it!
@@Eric-ot6sn you’re obviously too ignorant to understand, what code is. That duct board will last longer than metal in southern areas. But ok genius !
@@domrod1579 no it want, I've been doing this over 20 years and I have seen that shit fall apart.
@@Eric-ot6sn 20 years? Yeah, I’m definitely questioning 20 years. You should know, that this trade is done differently in other parts of our country, with no exceptions.