On the other is a thin foil backing which serves as the outside of the duct.
How to cut 1 inch duct board.
Standard duct board comes in sheets that are typically 48 inches 120 cm wide by 96 inches 240 cm long.
Use a straight edge or ruler and use a permanent marker to make a clear and precise line.
Slide the duct board knife along the width of the duct board.
On one side of the sheet is a thick layer of fiberglass insulation.
Lay the duct board knife flat between the duct board and the foil vapor barrier with the tip of the knife pointing toward the 1 1 2 inch line.
Use grey tool to cut female side joint shiplap on left edge of board.
The master flow 48 in.
To cut foam board straight start by making sure you measure and mark a straight line.
Measure and draw groove centerlines starting at leftside ofboard usingstraightedge adding stretch outallowances draw two lines for staple flap at right side of board.
R4 1 r6 1 5 r8 2.
Keileoho aluminum foil tapes 3 rolls.
Cut this duct board to size and use it to build your own hvac fittings or trunk duct and then assemble it with fiberglass weave and mastic or duct board approved duct tape for a convenient solution to your ducting problems.
Duct board is an easy to work alternative to sheet metal for heating and cooling systems.
Duct board r 6 features fiberglass construction with an fsk backing for sturdiness over time.
Use orange tool to cut.
Drag the knife perpendicular along the 1 1 2 inch mark.
How to cut join duct board.
Remove the 1 1 2 inch piece of cut insulation.
We stock massive quantities of duct board and sound board and have a professional duct artist on staff to specialty cut duct board distribution boxes tri boxes supply and return plenums trunk lines all sizes and r values.
Duct board is manufactured in three different thicknesses.
Duct board knife marking pen.
1 inch 2 5 cm 1 5 inches 3 8 cm.
It s made of fiberglass covered in a thin layer of aluminum and offers.
Determine board length as described above.