Sheet metal roofing is one such roofing material that has become extremely popular for residential roofing in recent years. Manufacturers begin with metal sheets that are converted into flat metal panels and then to roofing panels and components. Many manufacturers and fabricators also apply a finish to most of them. With proper forming tools and equipments, some metal roofing installers also fabricate flat stock into roofing materials on site. But on-site fabricating has several problems associated with it. There can be wide variations in the quality of the work and with the finishes. On-site fabricators also offer limited warranties running from six months to one year. It is also notable that with site-formed roofing, you also don’t have the strength and reliability of a large manufacturer behind the product.
Manufactured sheet metal roofing is sold in large panels that are normally 26-gauge coated steel and weighs about one pound per square foot. Because of the large panel size, this roofing works best on large, unbroken expanses. Apart from steel, other materials include painted aluminum, solid copper, zinc alloys, and terne-coated stainless steel.
Sheet Metal Roofing
There are two main sheet metal roofing system named after the method of joining the panels: “Standing-seam roofing” and “batten roofing”.
Standing-seam roofing has a self-sealing, raised seam.
Batten roofing uses a wider cover cap. In this system, special matching metal parts are made for ridges, hips, edges, and connections.
Prices of sheet metal roofing materials widely depend on the material and finish and are priced by the square foot. Prices range from $1.50 per square foot to about $6 per square foot depending on the material and finish. This includes the price of panels, fastening clips, caps, and all trims and flashing. You should always ensure that the price in inclusive of all the necessary parts and accessories.
How to get the best roofers’ bid
To get bids, start by calling the manufacturer. Most of them will usually put you in touch with a local representative or installer who will bid on your job. You can also go for several roofers’ bids before finalizing the contractor or the roofer to do your job. Make sure that labor and freight are included bid. It is notable that freight can be very expensive; hence, it pays to choose a manufacturer in your own region.
Popular Brands of Sheet Metal Roofing
Let us now have a closer look at some popular brands of sheet metal roofing. Prices may vary depending on your geographical region, material, finish, parts and accessories and complexity of the job.
Berridge: Offers a wide variety of metal roofing and siding materials. Victorian and classic shingles, prefinished or unfinished in Galvalume, are few interesting ones. These are perfectly suited for restoration of older home.
Microzinc Roofing System: Offered by W.P. Hickman. These are manufactured from a zinc-copper-titanium alloy in both standing-seam and batten systems. Microzinc alloy roofing metal develops a gray patina in about 6-18 months and weathers naturally. It is a very beautiful roofing material but is also very expensive. Prices may run from about $4 to $6 per square foot.
Follansbee Steel: This is an alloy of lead and tin in the ratio 80:20 or 80% lead and 20% tin. It also helps soldering during construction and offers excellent paint adhesion. This finish must be painted on standard steel to prevent rusting but on stainless-steel panels, it can be left to weather naturally because stainless steel won’t rust. Stainless-steel terne-coated roofing is both durable and beautiful. The terne coating transforms from a shiny metallic finish to a matte gray with oxidation. During initial oxidation, some lead washes off the roof, and traces may be detected in the soil around the house. Prices run from about $3 per square foot excluding the installation charges. I personally believe that the presence of lead is a matter of concern as lead can be a health hazard. I recommend installers to wear hand gloves to protect against lead poisoning.
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