Stone Coated Metal Roofing Systems

Prosteel Metal Roofing Looks the Best and Lasts the longest

 

Prosteel offers four unique roofing profiles made from stone-coated steel that range from the graceful curves of ProsteelTILE®, to the deep wood grain of ProsteelSHAKE® metal shake roof, to the sleek low-profile finish of ProsteelSHINGLE® metal roof shingles, or the timeless beauty of ProsteelROMAN® all of which create a strong, weather-tight, environmentally-friendly metal and stone roof that will beautify and protect virtually any property for years to come.

Whether your needs are focused on finding just the right roof for your home or a perfect color for an upcoming architectural or multi-family project, a Prosteel steel roof is the smart choice. We have also made the process simpler by providing an in-depth video on-line for you to view - just take a look at our , along with a brief explanation on the benefits of "Batten" vs. "Batten-Less" installations. For more information or a roofing estimate, please feel free to contact us about Prosteel's Smart Roofs for Smart People™.
Prosteel Company Firsts

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™”.
Frequently Asked Questions

Q. How Long Has Stone-Coated Roofing Been Around?

Stone-coated steel roofs occurred during World War II when tar & sand were used to cover galvanized steel bunkers. After the war, the practice was commercialized and the first roofs were produced. Stone coated steel roofs have been protecting buildings for over 55-years, but the product technology today bears little resemblance to early practices due to advances in the chemistry of coatings and acrylics.

Q. Will A Steel Roof Make My Home Hot?

No. A properly vented steel roof moves air both between the shingles and the underlying deck as well as moving air from vents under the decking. Heated air is allowed to dissipate through the ridgeline as cooler is drawn through eave vents. Reduced energy bills can result from airflow both under and over the decking.

Q. Can You Walk On A Steel Roof?

Yes. Some care must be exercised while walking on the roof, but note that roofers walk all over the shingles during the installation process

Q. Is a Steel Roof Noisey In The Rain?

The combination of dead-air space and the stone coating minimize outside sounds. One rural couple standing directly under a stone coated steel roof observed that they could hear the rain striking a metal building about 50-feet away, but couldn’t hear any noise from the stone coated steel roof directly overhead.

Q. How Wind Resistant Is a Steel Roof

Prosteel roofing panels have been proven to resist wind speeds in excess of 120-mph. One homeowner’s roof survived tornado force winds completely intact. “We lost 12 large trees…the shingled roof of our garage…a 14' X 14' (2" X 6") pump house deck slammed into the house and buckled the brick. You said it would hold up in a tornado. I’m writing to tell you it will.” Bill Jamieson

Q. How Do The Granuals Stay Bonded To The Steel

Specially graded ‘Non-Oiled’ natural granite stone chips, produced by SGI Corporation are used for all Prosteel stone-coated products. The granules are embedded in a UV resistant acrylic polymer for a lasting bond to the steel substrate

Q. Will A Steel Roof Rust?

The steel substrate is protected from corrosion by layers of metallic and polymer coatings. Prosteel has an advanced metal composite developed by BIEC International and introduced in 1973 as aluminum-zinc coated steel. The composite improved earlier metallic coatings by applying an aluminum-zinc alloy to the steel in a continuous hot dip process. The aluminum creates a barrier coat while enhancing the long-term performance of zinc and its ability to protect breaks in the coating. Galvalume® coated steel has repeatedly been shown in industry studies, conducted over the last 30-years, to outperform the corrosion resistance of other coated metals. This is why the Prosteel roofing panel is referred to as “The final Roof”, and is backed up with a 50-year limited warranty.

Q. Does The Color Fade?

Though sized more precisely, Prosteel uses the same stone granules used by asphalt shingle manufacturers for over 50-years, so history demonstrates that fading is not a problem. Over time, a slight change in color may occur due to settling of airborne contaminants; however periodic rain or washing the roof with a garden hose will keep the roof looking new.

Q. Is a Steel Roof Fire Safe?

Steel roofing is classified as a noncombustible roofing material (Class A). Prosteel panels when installed over combustible materials like wood shakes or shingles, the resulting roof assembly can be classified as A, B or C depending upon the type of underlay installed between the old roof and new roof. The lightweight (1.5-lbs/Sq-ft) strength of the steel roof helps prevent roof collapse onto occupants exposed to fire within their residence. top There are many examples of the safe fire performance of stone-coated steel roofs in areas subjected to fire storms. Additionally, the lightweight strength of the steel roofing precludes it from crashing down on occupants exposed to fire within their residence.

Q. How Long Does It Take To Install A Steel Roof?

Usually only a few days. The complexity of the building’s roof is the primary factor in determining the time required. Complex roofs require more time than basic designs.

Q. What IS The Installed Weight Of A Steel Roof In Comparison To Other Products?

 

PRODUCTWGT. PER SQ. (1-Sq. = 100 Sq.ft)
Steel Roofing125 lbs.
Standard (3-Tab) Asphalt Shingles**190 – 215 lbs.**
Wood Shake/Shingle*250 – 300 lbs.*
Heavy Weight Laminated Asphalt Shingles**290 – 430 lbs.**
Clay / Concrete Tiles*900 – 1200 lbs.*

Cedar, Clay & Concrete product weights are all DRY weights, all 3-product weights increase when WET. **Asphalt Shingle weights DO NOT include the weight of new plywood. OSB sheathing.

Q. What Does Hail Do To Steel Roofs?

Prosteel panels have earned a UL Class-4 Impact Resistance rating from Underwriters Laboratories. Except under the most extreme storms, Prosteel panels show no visible effects from impacting hail stones. Some insurance carriers extend a discount on premiums to homeowners that have a UL Class-4 Prosteel roof.

Q. Are Steel Roofs More Susceptible To Lightling Strikes? 

Steel roofing is no more susceptible to lightning than other roofing materials. It has been demonstrated that lightning strikes most frequently the highest points of terrain. Where concerns exist, lightning rods can be installed on roofs that are the highest point of surrounding terrain

Q. How Does Prosteel Market Its Products? 

Prosteel sells its products ONLY through wholesale type distributors who in turn sell to local contractors.

Online Warranty Rescorces

Our onlne warranty registrations process ensures efficiency and your readily available Paper and Electronic copies of this best roofing warranty available! Terms and conditions of Prosteel's 50-Year Limited Warranty can be found here.

For your warranty registrations, transfers and claims convenience please follow our online procedures listed in the below links. If you are unable to complete an online registration, PDF downloads with mailing instructions are available in the below links.

Warranty Registrations

To process your Prosteel roofing warranty, please complete and submit our online Warranty Registration within ninety (90) days of your roof installation. After approval, a numbered Prosteel Warranty certificate will be emailed to you for your records.

Or download and print a paper version to send in via postal mail from here.

Warranty Transfers

If your roof was installed after June 1, 2016 there is no need to transfer your warranty ownership. To transfer an existing warranty ownership, complete and submit our online Warranty Ownership Transfer within thirty (30) days of the properties change in ownership. Our warranty department will email your new warranty certificate or contact you within 5 business days.

Warranty Claims

If a problem is experienced with a Prosteel Product that is believed to be covered by this Limited Warranty, please submit an online Warranty Claim form. Please include your valid warranty certificate number, and photographs of the specific defect or problem. You may be required to provide additional information or materials at the request of Prosteel, including photographs. As a condition of coverage under this Limited Warranty, you must notify Prosteel of any problem or defect within thirty (30) days of discovery to minimize damages that may occur from said defect.

Choose From 5 Distinctive Roofing Profiles to Compliment Any Architectural Style

How Prosteel Roofing Compares with Traditional Roofing Materials.

Your roof is an integral part of your home or business, and Prosteel roofing offers you the best looks, security and protection! 

Prosteel roofing is available in a full range of colors and styles, and thanks to its great lasting looks, durability, and energy savings in both hot and cold climates, is gaining in popularity against its concrete, clay and asphalt shingle alternatives. Refined profiles and durable chipped stone and acrylic coatings deliver lasting good looks, with the lowest maintenance costs and highest performance satisfaction ratings! Unlike traditional roofing materials, metal does not absorb moisture so it will continue to look good and significantly outlast almost all other roof types. 

Our metal roofing is not only up to 10 times lighter and more compact than traditional concrete and clay tile or asphalt shingles, but it is also far stronger, and offers the best warranty protection against fire, wind, and hail.

Why Prosteel Roofing?

A Strong Leadership History:- Founded by US steel roofing industry veterans with over 100 years of combined experience in stone-coated steel technology. Read our Company History page.

Reliability, Quality and Innovation:- Prosteel’s design focus is on simple, functional products that provide fast install times and an aesthetic look to suit any architecture. 

THE PROSTEEL DIFFERENCE - Prosteel’s superior product features are the result of years of research and development on exclusive processes and include: 

Prosteel STEEL — Highly corrosion-resistant AZ-50 Galvalume® steel coated with specially prepared & treated with proprietary primer to enhance Prosteel acrylic adhesion.

Prosteel BASECOAT — Proprietary special formulation developed by the world’s largest resin supplier to promote long-life performance in all climates.

Prosteel STONE CHIP — Finely graded, non-oiled, natural granite granules that enhance adhesion and provide the tightest granite stone coat matrix on the market today.

Prosteel ACCESSORY DESIGN — SMARTvent stone-coated ventilator panels fully integrated into the roof field with no need for special flashing. SMARTjack stone-coated 3-in-1 type vent pipe flashings with self-sealing rubber gasket and aluminum base. SMARTsleeve stone-coated and soon-to-be-released vent pipe sleeve cover to perfectly finish pipe penetrations. Eave Riser metals and Rake Channels incorporates great looks and error-free installation.

Prosteel WARRANTY — Every roof is backed with a 50-year limited warranty that has unlimited transferability to subsequent owners — a major plus in today’s housing market. We take pride in our products and it shows — everywhere a Prosteel roof stands!