METAL BUILDINGS SHEETING INSTALLATION (Con't)

Steel Buildings Sheeting Instructions

• The Steel Building  roof sheets are installed last. Start these so that the laps are away from the prevailing wind. It is standard among metal buildings to use roll caulking (mastic sealant) on the laps when sheeting the steel building  roof.

• Use self-tapping screws (LAP TEK) at all locations where screws go through only sheeting or trim. Use self-drilling screws (S.O.S.) at all locations where they go through both sheeting and purlins or girts.

• For effective results, it is vital that an adjustable torque screw gun with 2,500 RPM be used for the self drilling screws supplies with your steel building. Failure to use a 2,500 RPM gun speed will result in broken drill points on these screws.

  NOTE: Occasionally the rubber washer may spin out from under the self drilling screw head; replace it with a new self drilling screw. (S.D.S) if this becomes frequent, reduce the torque on the screw gun or replace it as needed.

  NOTE: Occasionally the screw hole of a self tapping screw (LAP TEK) may become oversized, use a #17 X: X" self tapping screw (LAP TEK) to correct this. If this becomes frequent, reduce the torque on the screw gun or replace it as needed.

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