4 & 5. Snap a chalk line on the center of the furring strip in the center of the room. (overlap sheets towards the door, underlap sheets moving away from the door; this is so the seam faces the back.) Align the edge of the sheet with the chalk line and attach the sheet using 1-inch common nail at 6-inch intervals where they overlap and 1-foot intervals down the center. Angle the nails for greater strength and drive them in beside the nipples on the metal sheet; the nipples will be reserved for nailing the seam of the overlapping sheet. The installer should support the metal sheets with furring strip; just to help hold it up while nailing.
10. Seal all seams by tapping with the head of a wide-angled chisel.
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