duct board shaping and cutting

[raf]

anyone know where I can find info on the shaping ( angle cuts etc.)and cutting of duct board. I haven't worked with this stuff in 12 years but now have a job where much needs to be installed.

I tried Owens Corning website hoping to find a pdf file of link but came up empty handed.

Thanks

[square2round]

Try a google search. I found a couple of pdf's, but I'm not on my computer. This computer doesn't have Adobe. I searched for "ductboard cutting procedures". Try to re-phrase if you still come up short.

If this doesn't help, ask the local supply house to get you a copy of the paperwork that comes with the purchase of the cutting tools. I don't own the tools, but I'm pretty sure the instructions that come with the tools has all that information.

[johnl45]

Knauf Air duct fabrication Manual or NAIMA fibrous glass duct construction standards. http://www.naima.org
http://www.jm.com/insulation/technical_info/2949.htmhas some fabrication info.

[ct2]

we have machinery that cuts our ductboard but we made a tool to cut circles with using a piece of 1/2 x 2" flat aluminum

along the length of the flat bar on the c/l holes are drilled and tapped 1/4-20 on the radius of each size and on the end a razor knife blade is attached with an end cap that is also drilled to accept a #10 screw-the end of the flat bar having two holes drilled and tapped to match the holes in the cap


everyone that uses one has been happy with it. I dont know if that helps or not

[raf]

Thanks for all the feedback. I ordered the guide from NAIMA should be here within 12 days.