Archive for the ‘Metal Roofing’ Category

Classic Metal Roofs Garners National Recognition

Wednesday, April 5th, 2017

Earlier this month, Classic Metal Roofs, LLC was honored with the 2016 Superstar Award by our metal roofing supplier, Classic Metal Roofing Systems. This award is given to only a few roofing contractors across North America who exemplify superior customer service and quality.

Classic Metal Roofing Systems’ President, Todd Miller, praised Classic Metal Roofs LLC, “Every year, Classic Metal Roofs, LLC sets an example for home improvement contractors across the country in their care for customers and quality installations. We are honored that they choose to partner with us to serve homeowners in their area.”

Classic Metal Roofing Systems sells its metal roofing systems through a network of independent dealers across North America. Classic Metal Roofing Systems partners and works closely with these independent dealers to ensure consistent quality and care for homeowners around the country. Only a few of these organizations are recognized for their exemplary success and service.

Miller continues, “We relish the opportunity to honor Classic Metal Roofs, LLC as they continue to set an example for the entire history. This is a company that truly excels at what they do.”

Classic Metal Roofing Systems has been manufacturing “the world’s most beautiful metal roofs” since 1980. They have a wide breadth of products that create beautiful facsimiles of traditional shakes, shingles, slates, and tiles. For more information about Classic Metal Roofs, LLC, visit their website at www.classicmetalroofs.com.

Metal Roofing Leads to LEED Rating Energy Savings: Why Choose Aluminum

Thursday, March 2nd, 2017

Summary: Aluminum metal roofing can boost a building’s LEED® rating significantly, raising the energy efficiency of a home and passing significant savings on to the client.


A recent study conducted by the U.S. Green Building Council suggested that Leadership in Energy and Environmental Design (LEED®) certified buildings averaged an ENERGY STAR® score of 89 out of a possible 100. In addition to being more environmentally friendly, LEED® for Homes™ certified buildings save clients money in the long run by boosting the energy efficiency of a home. One such element of a high-scoring building is metal roofing, a durable, customizable building material which has a huge impact on LEED energy savings.

The Benefits of Metal Roofing

It is no secret that architects love metal roofing. Striking to look at, easy to work with, and resistant to harsh weather conditions, roofs constructed from aluminum, zinc, and copper (or a combination thereof) are a popular choice. Resistant to fire and wind damage and practically maintenance-free, homeowners love them too. Recently, metal roofing has gained further praise for its sustainability; the materials are easily recyclable and can be built over the top of existing roofing to reduce waste and disposal costs. Best of all, these building materials are incredibly energy efficient, keeping homes cooler in summer and warmer in winter without excessive gas, oil, or electricity usage.

LEED Platinum rated house

LEED Platinum Award Winning House features a Classic Metal Roofs installation

LEED Energy Savings

The LEED program ranks a building’s sustainability using a point system. A building may be awarded a certified silver, gold, or platinum LEED rating, with corresponding social and economic incentives. By reducing heat transfer and lowering energy expenditures, metal roofing can have an enormous impact on a building’s LEED rating. It has been proven that these types of materials save homeowners up to 70 percent in air conditioning and cooling use, which in turn may make a building eligible for LEED credits and even tax incentives.

LEED Platinum rated house

Award-winning net-zero energy home: Note the nice complementary use of standing seam over the porch with the Oxford slate main roof – energy savings and great looks!

Aluminum vs. Steel: Why Choose Aluminum?

There is a reason airplanes are made with aluminum and not steel. Aluminum skin over aluminum frames is how most aircraft are built. Its light weight and superior strength make it an ideal choice for both airplanes and roofs.

Cheaper than copper and zinc, and incredibly malleable, aluminum roofing is often preferred to steel on account of its superior resistance to corrosion. However, aluminum is also the smart choice for contractors concerned with sustainability and LEED rating. Thin and light, with an impressive strength-to-weight ratio, aluminum roofing stores the least amount of heat of any metal building material. This means that the roof cools quickly once the sunlight fades, leaving the attic space temperate and filtering far less heat to the rest of the home.

With all of this in mind, it is clear that aluminum should be the metal of choice for homeowners and architects looking to maximize energy savings and for a roof that will look great for years.

Painting and Protecting Metal Roofing: Anodized vs. Paint vs. Powder Coating

Wednesday, February 15th, 2017

Any roof, no matter the product type or color, is only a good one if it is durable and does not leak. Versatile and malleable, aluminum roofing is a wise, cost-effective option for your home. There are three good options for protecting metal roofing. Paint protects surfaces and adds color, but metal roofing is different from other materials. To protect the material from the elements and to visually enhance the result, metal roofing can be anodized, painted with liquid, or powder-coated.

Anodizing

Anodized aluminum roofing has a protective surface coating of aluminum oxide that is applied via an electrochemical process. Because it is durable and weather-resistant, anodizing is a common, effective, and long-lasting protection for applications like standing seam metal roofing. The thicker the anodic coating, the longer it lasts.

Anodized coatings may be dyed almost any color. They will also take on bronze overtones naturally due to a diffraction phenomenon the coating itself produces over time. Anodized metal does not lose its coating, which grows integrally from the base aluminum and thus neither peels nor flakes, permanently sealing the aluminum roofing underneath against the elements.

Painting

Painting or powder coating also protects and colors metal roofing. However, these paints and powders should be factory-applied rather than completed DIY. Of the many resin options, PVDF performs exceptionally well on metal roofing in harsh weather environments. PVDF-coated aluminum roofing generally outperforms anodized metal. It is not only resistant to extreme weather, but also to chemicals, UV light, flaking, and chalking. Also contributing to PVDF’s popularity is the nearly limitless range of color possibilities.

kynar-layer-system-img

Kynar500® and Hylar5000® are the two leading products, virtually identical in all but name. Both yield the same superior-quality finishes; what is more, these products are usually warrantied for 30 years up to five Delta E units, which is the measure of the smallest perceptible color shift.

Powder Coating

Powder coating, on the other hand, is essentially “paint without the solvent.” Powder paints encapsulate pigment inside powdered resins. When composed of the same resins, the powder and liquid versions perform similarly by comparison. Because they are applied electrostatically after the product has been made, these “post-forming” double coatings not only beautify, but they also help correct any potential flaws or fissures in the base protective coating applied by the manufacturer.

A significant environmental benefit accrues due to less air pollution from the oven-curing manufacture process for powder coatings as compared to liquids. Kynar powder coatings are leaders in this innovative product category. When reflective metallic pigments are integrated into Kynar powder coatings, the stunning results are also money-saving. Reflective powder coatings deflect significant UV radiation away from the attic, keeping the house cooler and in turn reducing energy costs. When combined, Kynar paints and powder finishes provide superior color quality and long-lasting protection.

Aluminum Metal Roofs vs. Asphalt Shingles

Friday, February 3rd, 2017

There are many pages and blog posts on this Classic Metal Roofs website which contrast the merits of aluminum metal roofs versus asphalt shingle roofs – to the advantage of the former, of course. We do not claim to be unbiased on this matter! Below we lay out the pros and cons of each in succinct table display form, for those who just like to cut to the bottom line, or for those of you who are just starting to educate themselves on the subject.

METAL ROOFS vs. ASPHALT SHINGLES
ALUMINUM METAL ROOF ASPHALT SHINGLES
aluminum metal roof aluminum metal roof
ENVIRONMENTALLY COMPATIBLE
recyclable aluminumAluminum metal roofs are manufactured with up to 95% recycled post-consumer metals.

landfillThe National Association of Homebuilders Research Center has estimated that somewhere in the neighborhood of 20 BILLION pounds of asphalt shingles are thrown into American landfills every year.

MAINTENANCE
Aluminum roofs when properly installed need no maintenance service. It is a good idea to inspect the roof to make sure that no damage has occurred from falling or blown debris after a significant storm. This is common sense and should be done regardless of your roofing material. Asphalt shingle roofs need to be inspected on a regular basis. Damage can occur on several fronts. It is best to stay ahead of problems in order to minimize the cost of repairs.
HEATING & COOLING FEATURES
reflective metal roof surfaceThere is a reason that aluminum metal roofs are Energy-Star rated: They can keep a house significantly cooler in the summer. Tests have shown 25% savings in cooling costs when a house has an aluminum roof. In the winter, an aluminum roof will keep a house marginally warmer due to the reflectivity back into the house of heat that would otherwise escape.

energy absorbing dark asphalt roofStandard asphalt shingles have no cooling- or heating-related advantages. The opposite is true. One can expect a large heat gain in the summer and no retention of heat in the winter.
DURABILITY
Aluminum roofs are made to last. Hurricane-rated wind, ice, snow, hail, and sunshine will not affect a properly installed aluminum metal roof.

Asphalt shingle roofs are effectively manufactured to fail. “Planned obsolescence” is the key concept here. Usually failures are in high wind, and when ice dams form and water infiltrates the home due to the inherently flawed design. Sun causes asphalt shingles to break down and cup. Hail is the number one destroyer of asphalt shingles in the United States.
STRESS ON ROOF STRUCTURE / WEIGHT
low stress aluminumDepending on the profile of the roof and the thickness of the aluminum, these roofs typically weigh between 50 and 75 pounds per 100 square feet of coverage. high stress asphaltDepending on the style and manufacturer of the shingles, asphalt roofs weigh between 240 and 400 pounds per 100 square feet of coverage.
STYLE / DESIGN / PROFILES / COLORS
Aluminum metal roofs are available in multiple shingle styles including a traditional shingle, a slate, a shake, and a Mediterranean barrel tile design. Standing seam in several widths are also a very popular choice among architects, homeowners, and builders. All are available in many colors.

The product is available in a wide variety of colors and several styles.
LONGEVITY
long lived aluminumAn aluminum roof can last over 100 years when properly installed. There are aluminum roofs still in service in the U.S. that are well over 100 years old. short lived asphaltAsphalt shingle roofs here in New England last an average of 15-20 years, based in location conditions.
BLACK STREAKS, BUG INFESTATIONS, SQUIRRELS
Black streaks are a type of algae that live off the minerals in some types of asphalt shingles. Algae thrives in moist conditions, so it is most commonly found on shaded or noth-facing roof slopes that do not get a lot of direct sun. There is no place for the algae to get a foothold on the aluminum to cause black streaks. Bug infestation is also a non-issue, as there is no place for the bugs to go because the roofs are interlocked together. And, it is impossible for squirrels to chew through a metal roof to gain access. Black streaks are everywhere on asphalt shingles. It is true that algae do not damage roofing, but it certainly looks bad. It attaches to the granules and indentation of the shingle roof. Asphalt shingles overlap each other on the roof, which holds moisture and attracts bugs. Squirrels love asphalt roofs; they can chew right through them and gain access to the house interior.

PRICE / COST
high ROA aluminumWith all the advantages of aluminum as a roofing material you would expect to pay more. They do have a substantially higher up-front price but the cost of ownership and return on investment over the roof’s lifetime cannot be beat. The long-term cost is very low.

high maintenance cost asphaltIf you want a roof where the up-front price is cheap, then this is the way to go. But high long-term costs are what you get with asphalt, in the form of repair, maintenance, and – ultimately – replacement costs.

RETURN ON INVESTMENT
Aluminum metal roofing is one of the best home improvement investments you can make to enhance the value of your home. Recent statistics here in New England assert that you can expect to recover 85% or more of your investment when the house is sold. Of course, then there are all the other benefits you reap every year that your house has an aluminum metal roof.

No return on investment, just depreciation of investment. This type of roof is considered a liability and is often a point of negotiation for lowering the offering price at the time the house is resold.
© Classic Metal Roofs, LLC

Metal Roofs – Aluminum vs Galvanized/Galvalume

Thursday, January 26th, 2017

All Metal Roofs Are Not Created Equal

The benefits of metal roofing in New England cannot be disputed. Although not all metal roofs are created equal, nor are they installed in the same manner. We are going to cover a vital item that is highly significant when it comes to residential applications. That is the base metal used for the roof.

Base metal, when used in the context of construction, is the primary component used in construction material, from the sheets of roofing exposed to the elements, right down to the fasteners contained beneath the roof. When used as part of a roof assembly, the base metals can be steel, aluminum, copper, or zinc, or a combination of base metals. All base metals have distinct properties which contribute to advantages and disadvantages in longevity and appearance when applied in various climate zones.

We will focus on two widely used base metals used in roofing: steel and aluminum. Steel is a hard, strong, gray or bluish-gray alloy of iron with carbon and usually other elements, used extensively as a structural and fabricating material. Aluminum is a silvery-white, soft, nonmagnetic, ductile metal. Both metals can be used for roofing. Steel can be used for structural roofing and architectural roofing. Aluminum is primarily used for architectural roofing. Architectural roofing does not require structural integrity in the construction assembly.

Galvanized and Galvalume Steel Roofing

It is important to note that base metals can be combined, coated, or layered with additional metals in a variety of bonding processes. Two popular roofing materials that use this process of binding two or more dissimilar metals are referred to as galvanized and galvalume, each of which use steel as the base metal. Iron or steel can be coated with zinc; this is known as a galvanized metal. The zinc acts as a protective layer to iron or steel to prevent rust. Galvalume is aluminum and zinc coated steel. The combination of aluminum and zinc is used once again as a protective layer to the steel. Steel exposed by itself without other protective metal coatings such as aluminum or zinc turns a reddish- or yellowish-brown flaky coating of iron oxide that is formed on iron or steel by oxidation, especially in the presence of moisture. It is what we refer to as “rust.”

Rust has been called “the great destroyer” and “the evil.” The Pentagon refers to it as “the pervasive menace.” It destroys cars, fells bridges, sinks ships, sparks house fires, and nearly brought down the Statue of Liberty. Rust costs America more than $400 billion per year—more than all other natural disasters combined. (reference: RUST: the longest war)

What Happens When the Protective Coating Wears Off?

Everyone has come across rust at some time in their life. We have all seen it before. Rust is unsightly. Shiny spokes on a bicycle wheel, or a dented corner panel on a car, all show the common enemy of rust becoming evident eventually. The question is would you want to see rust on your home’s roof in the future? Which base metal assures no rust whatsoever over the course of the roofs life? The only one of the three base metals we have looked at that is rust-proof is aluminum.

Metal working requires tools which bend, cut, and shape metal roofing components. Roof valleys and ridge caps are bent, roof edges are cut, and panels are formed and shaped depending on the particular style desired. All of this metal work by mechanics contributes to stresses on the metals and exposure of edges where a base metal may lose the protective coating, be it another metal or paint finish which is meant to keep it from rusting. This is particularly true for galvanized and galvalume roofs where the base metal steel is now exposed to the elements. Warranties for galvalume and galvanized roofing will call out a certain acceptable amount of rust from any edge that is cut within a specified period of time. Do you want to look up at a newly installed metal roof and wonder when the rust will show up, the paint finish will start peeling, and rust will begin running down your siding? I suspect not. So if that is true, you will want to choose to have an architectural aluminum roof installed, as aluminum does not rust. Aluminum, as you remember, is used to coat steel in the galvanized and galvalume products. You also do not want the fasteners holding your roof on, which may also be galvanized undergoing deterioration.

galvanic reaction on metal roof

The photo above shows galvanic reaction occurring, through the paint finish no less, of a steel based roof underneath the flashing of a drip edge above. This would not happen in a Kynar resin paint finished aluminum roof.

drip edge and rib bend in the galvalume standing seam roof

The photo above shows the drip edge and rib bend in the galvalume standing seam roof of the same home. If you examine the photograph closely, you will see the paint finish has chipped away underneath the drip edge where the steel base metal has begun to deteriorate (rust).

galvalume metal roof failure on commercial building

It is common for commercial buildings to use galvalume roofing as an initial cost saving measure. In the photo above we are beginning to see the failure of the paint finish along the seam of the bent metal. The failure is either in the paint resin, or the manufacturing process when the finish was adhered to the metal coil. Galvalume has a coating of aluminum over the steel and will likely take more time for rust to occur at the exposed locations of the panel. However, wear occurring along the roof’s drip edge where all the water and snow run off will eventually wear away the aluminum coating once the paint finish fails, and rust will ensue.

Only Aluminum Offers Long-Lasting Protection While Remaining Aesthetic

Paint finish warranties are key to understanding the expected longevity of a galvanized or galvalume metal roof. Aluminum roofing comes with paint finishes, as well, and have their own warranties. The big difference is that aluminum will oxidize/chalk if exposed to the elements, but the aluminum will not look unsightly and continue on with a rapid oxidation process (deterioration/rust), as steel will.

Be sure to visit Classic Metal Roofs website to see non-rusting roofs made with aluminum for your next architectural “metal” roof.

Written by Bryan Rusch, Partner at Classic Metal Roofs LLC. Additional articles related to metal roofing can be found on Bryan’s LinkedIn profile here: https://www.linkedin.com/in/bryanrusch