Gently tap the block with a hammer along the seam to close any small gaps. Be careful not to tap on the raised dimples or you'll crush them.
Seal all the seams between the ceiling panels in this manner.
come in 2x2- or 2x4-foot sizes
come in 4-foot-long sections
creates solid nailing surface for ceiling panels
for attaching the plywood underlayment
used to build T-braces for supporting plywood during installation
for brad nailer to fasten ceiling panels; or use special cone-headed nails
used to fill gaps at the seams
for concealing caulked gaps and mistakes on an unpainted ceiling
used to seal panel seams
for marking cut lines on ceiling panels
used to locate ceiling joists
for boring tin-snip starting holes in ceiling panels