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Stone Coated Steel Roofing Materials & Cost Guide

Stone coated steel roofing is made from metal or steel. It is more durable, yet still retains the natural beauty of traditional roofing. After production, stone chips are laid over the metal, which is then attached to the steel piece with acrylic film. Stone coated steel roofs are ideal for homeowners who want the durability of steel roofing but like the look of asphalt shingle. It is lightweight, strong and easily installed. There’s no need for battens with steel roofing, and the metal shingles lock together. This is especially helpful against climates with heavy wind and rain.

The Costs 

  • Average minimum cost for a 1,200 square foot roof: $7,000-$8,100

  • Average maximum cost for a 1,200 square foot roof: $9,200-$10,100

  • Average cost of stone coated steel roofing per square (1 square = 100 feet): $185-$400

Steel metal roofing may be more expensive than shingles, but the investment pays off in the end. These types of roofs last much longer and have more durability than asphalt shingles. Homeowners actually end up saving money due to the low maintenance costs. Compared to the cost of a regular asphalt shingle roof, which averages at $2,000-$5,500, stone coated steel roofs can cost almost double or triple. The plus side of this is that the roof will most likely never need replacing again.

Because this type of roofing is fairly new, it may be hard to find a qualified installer.

Stone Coated Steel Roofing

Steel roofing offers the added benefit of protection from the elements such as wind and hail, and most stone coated steel roofs are able to withstand flame and fire. A regular asphalt roof would not be able to stand up in hurricane winds; many steel roofs can. Steel also does not fade in the sun from UV rays, and color does not dull. It can even reduce energy bills due to its ability to actually reflect UV rays. Steel roofs are also corrosion resistant and can ward off dimpling from hail damage.

Stone coated steel roofing was developed over 50 years ago in New Zealand. It is normally mounted on wood strips called battens, but as the trend for stone covered steel roofing moved into the United States, the need for battens was modified in order to apply it over existing asphalt or wood shingle roofs. Deciding to place a roof either with battens or without depends on the type of design and the location or climate.

It provides exceptional wind resistance and is especially helpful in areas that have a high hurricane season, such as Florida. In this case, it would be recommended to use the batten-less method of steel roofing, which provides better resistance to high winds. Batten roofs work better in areas where hail could be a problem and areas where roofs are steep since the battens make installation easier. It is undoubtedly easier to install stone coated steel roofing without battens because of its prime wind resistance. Batten-less installations of steel roofing do not need excessive wood framing to make the roof more energy efficient. Although there is a slight increase in energy efficiency with battens, it is not enough to make up for the beneficial weather resistance of batten-less roofing. It is, however, necessary to install batten framing when the roof is being laid over an existing wood shingle or if the home is without an attic.

Both methods meet all North American building codes and California Title-24 Energy Codes, ensuring a more environmentally friendly structure.


Materials used in the building of stone coated stainless steel roofing include roof vents, flashing for piping, ridge vents and gutter protection. These can all be made with stone coated stainless steel. Other materials will also be needed in building, such as rake covers, starter strips, valleys, sealant and attachments.

Advantages of Stone Coated Steel Roofing

There are many advantages to stone coated steel roofing. The average warranty on stone-coated steel roofing is at least 50 years. It saves teardown cost as it can be installed right over existing asphalt shingles. It’s lightweight at about 1.3 lbs per square foot and increased energy efficiency with low environmental impact. Most metal roofing has a high recycled content. This helps to conserve natural resources and energy. It adds resale value to the home or building, and some insurance companies offer discounts on stone coated steel roofs due to its fire and weather resistance for its protection from the elements

Disadvantages of Stone Coated Steel Roofing

There are some disadvantages to stone coated steel roofing. The upfront costs are more than regular asphalt roofing. Natural stones used may create color inconsistencies. The panels overlap and do not interlock, which can create problems if snow, rain or wind get through. This type of roofing uses exposed fasteners, which can rust in time due to water exposure or trap moisture within. The batten type systems are prone to moisture and condensation, which can rot in time. Stone coated shingles are somewhat new; not every roof installer may know how to install them properly.

The bottom line is that, although stone coated steel roofing is fairly new, the benefits far outweigh the drawbacks. Although finances and budget do come into consideration with steel roofing, it is a better choice for builders who have the extra money to install this kind of roofing. Stone coated steel roofing will stand the test of time and far outlive asphalt shingles or cheaper roofing methods. If the home or building the roof is being installed in has a strong resale value, then this may be a good option. It is one of the longest lasting, most durable roofing systems on the market today.

Because of its resistance to weathering, the elements and virtually non-existent maintenance costs, stone coated steel roofing is an optimal choice for almost any building providing the occupants plan to stay in their home for a long time. Those planning to sell their home in the near future may not want to invest in this type of roofing, only because they will not be around to see a return in their investment or recoup the cost of the roof when the house is sold.

Last updated on Sep 10, 2014

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