Company History

Prosteel Roof Products’ ownership and management team has a wealth of experience in the manufacturing and marketing of stone coated metal roofing products.

Prosteel Roof Products has experienced tremendous growth since its formal factory opening in January 2000 and has become a leading manufacturer of stone-coated steel roofing products.

The Prosteel USA state of the art manufacturing facility is located in Oceanside California USA on four acres of land and produces a wide range of stone-coated steel roofing product profiles to suit almost any architecture.

Prosteel has built a strong leadership position in this industry and has a series of “firsts” to its name:

  • FIRST with a “Concealed fastener,” direct-to-deck stone-coated SHINGLE panel - 1997

  •  FIRST with a “Rake Channel” with an integrated “Locator-Lip” design for easy install & added weather protection - 2000

  •  FIRST with a “Nail-on” batten-less, direct-to-deck stone-coated shake panel - 2002

  •  FIRST with a fully integrated stone-coated roof vent “Prosteel SMART-Vent” panel - 2003

  •  FIRST with the SMART-Jack pipe flashing & SMART-Sleeve pipe cover - 2004

  • All of which add up to “Smart Roofs for Smart People™”.

Stone-Coated Steel History

While stationed in Britain during WWII a New Zealand industrialist noticed how the corrugated iron hangers and military structures roofed in steel were holding up to the rigors of the British climate. The service life was prolonged by the bitumen coating over the steel.

He took the idea back to New Zealand and perfected it further by adding a layer of stone chips into the coating to create an even longer lasting surface protection. His next step was to create simulated tile shapes in the metal instead of the traditional corrugated sheets. From this basic concept the stone-coated steel tiles of today were born.



Today’s stone-coated steel panels incorporate the same basic ingredients but with a high tech flavor. Over the years companies have perfected the coatings used and today’s stone-coated steel roofs incorporate state-of-the-art acrylic technology and have been tested in a part of the world that has one of the most severe UV climates. It is these advances in acrylic and chemistry technology that have enabled Prosteel to provide a limited appearance warranty on the surface coating stretching for over 20 years.

Since the early days of stone-coated steel, many shapes have evolved and now through Prosteel Roof Products you can chose a profile that best suits the architecture of your home. From the graceful curves of ProsteelTile, the earthy wood-tones of ProsteelShake to the eye appealing low-profile ProsteelShingle, any of them add up to a smart roof for smart people.