How to Cut Polycarbonate Roofing

Updated February 21, 2017

Polycarbonate roofing is a flexible, shatterproof material that features a built-in ultraviolet (UV) light blocker. The roofing is available in a variety of sizes and is easily cut to fit around chimneys, pipes and other structures on the roof of your home or business. When cutting polycarbonate roofing, you don't need a special saw or tool but you do need to wear the proper safety gear to keep any fibres from the material away from your eye and hands.

Lay the polycarbonate roofing flat on a clean surface --- concrete floor, large workbench or other flat surface. Wear work gloves and safety goggles when handling and cutting the roofing.

Place a T-square or long ruler on the roofing to establish an even line or to mark on the material -- using a white or light-coloured marker -- the shape you want to cut out of the roofing.

Raise the material 1 to 2 inches from the flat surface. Use a set of garden scissors, a hacksaw with a fine-tooth blade or a fine-toothed panel saw to slowly cut the polycarbonate roofing evenly along the T-square, ruler or outline of the shape you made with the marker.

Place the cut piece of roofing to the side until you are ready to install it. Remove the material's protective polythene film covering from each side before installing the roofing on your home or business.


When installing the polycarbonate roofing, place the side with the label and brand-name markings right-side up --- this side contains the UV protection. Use a non-hardening silicone sealant to secure the roofing to your home and to allow the polycarbonate roofing to expand and contract normally.


Do not remove the roof's protective films until you have cut the roofing to your liking and you are ready to install it. The film keeps dust and dirt from marring the polycarbonate roofing during the transit process from the manufacturer to the building supply, hardware or home improvement store.

Things You'll Need

  • Work gloves
  • Safety goggles
  • T-square or long ruler
  • White or light-coloured marker
  • Garden scissors, hacksaw with fine-tooth blade or fine-toothed panel saw
  • Shop towels or rags
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About the Author

Nick Davis is a freelance writer specializing in technical, travel and entertainment articles. He holds a bachelor's degree in journalism from the University of Memphis and an associate degree in computer information systems from the State Technical Institute at Memphis. His work has appeared in "Elite Memphis" and "The Daily Helmsman" in Memphis, Tenn. He is currently living in Albuquerque, N.M.