STEEL BUILDINGS WALL SHEETING Installation (Con't.)
STEP 2
Pre-drilling the high rib lap for self tapping screws (LAP TEK)
On the exterior lapping rib, mark the pilot hole to be
pre-drilled at 18" spaces, start 2 %" in from the bottom end of the
sheets. Use 1/8" diameter drill bit. Remember drill pilot holes only
on this side of the metal buildings sheet.
Prearrange the sheeting in stacks near the area convenient to
where they will be attached to the steel building. Measure the
lengths of the sheets and check them with the metal buildings area
to be covered.
Make certain that the sheets at one end of the stack are lined up
- this end should set at the base of the metal building. Secure the
stack firmly while drilling to prevent misalignment.
On the exterior lapping rib, mark the pilot hole to be
pre-drilled at 18" spaces, start 2 3/4" in from the bottom end of
sheets. Use 1/8" diameter drill bit. Remember drill pilot holes only
on this side of the sheet.
 Metal Buildings
Stack the steel building wall sheets to be pre-drilled with no
more than 6 sheets to a stack.
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