Premier Floors - Manual (Page 25)

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this panel. Set the next panel into place over
the bottom plate and tip it into its final position.
Measure the total depth of the header required
and add any sheathing or plating to the top or
bottom of the header to achieve this dimension.
Measure the maximum length the header can
be and cut the header 1/8” short of this, taking
care to avoid the nails in the Insul-Beam II as
you cut.
Apply Premier Mastic to the insides of the
opening and drop the Insul-Beam II horizontally
into place. Do not nail the panel skins to this
header yet. Apply Premier Mastic to the top of
the panel, down the center of the Insul-Beam II
and inside both ends.