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Steelworker Volume 02 - Building manual for how to work with steel | Next
Table 2-3.—Duct Board Length Selection Chart |
Figure 2-103.—Duct installed to a built-up steel roof.
Figure 2-104.—Fabricating rectangular/square fiber-glass duct from duct board.
Of extreme importance is the selection of the
inside diameter of the duct is the determining
proper board size to fabricate the duct before
factor of the board size. Use table 2-3 to determine
cutting and grooving. In all applications the
board size.
2-37
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