THE ROOF

FIXINGS FOR SHEETINGS

• USE PROPER DRIVE CREWS FOR CORRUGATED GALVANIZED ROOF SHEETS.

• BE SURE THAT THE SCREWS GO INTO THE PURLINGS AT LEAST TWO (2) INCHES.

• USE LARGE WASHERS UNDER THE SCREW HEADS TO PREVENT THE ROOF SHEETS FROM TEARING WHEN PULEED UPWARD BY HIGH WINDS.

• REMEMBER TO USE SUFFICIENT SCREWS SO THAT THE EHADS WILL NOT TEAR THROUGH.

• NAILS DO NOT HOLD AS WELL AS SCREWS.

• USE NAILS WITH WIDE HEADS AND LONG ENOUGH TO BEND OVER BELOW THE LATH.

• GALVANIZED COATED NAILS ARE BETTER THAN ORDINARY WIRE NAILS.

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  LATHS SPACING AND FIXING
  

• SPACING FOR LATHS AND NUMBER OF FIXINGS WILL VARY WITH THE GAUGE OF SHEETING USED.

• SCREWS HOLD BETTER THAN NAILS SO FEWER SCREWS CAN BE USED. BUT THE SHEETING MUST BE THICK OR THEY WILL TEAR THROUGH.

• LATHS SHOULD BE PLACED CLOSER TOGETHER FOR THIN SHEETS TO PROVIDE SPACE FOR EXTRA FIXINGS.

• A GUIDE TO THE NUMBER OF FIXINGS AND SPACINGS OF LATHS IS SHOWN BELOW.