Swenson Shear’s SnapTable PRO Is Equipped to Notch, Slit and Hem up to 60-inch Offsets for Hip-valley Roofing Cuts

The new SnapTable PRO from Swenson Shear, Ceres, Calif., adjusts to accommodate panels between 12 and 24 inches.

The new SnapTable PRO from Swenson Shear, Ceres, Calif., adjusts to accommodate panels between 12 and 24 inches.

The new SnapTable PRO from Swenson Shear, Ceres, Calif., adjusts to accommodate panels between 12 and 24 inches. It is equipped to notch, slit and hem up to 60-inch offsets for hip-valley roofing cuts. The SnapTable PRO is the newest addition to Swenson Shear’s collection and was added to increase the capability to slit and hem up to 60 inches for any commercial, industrial or residential job site.

The SnapTable PRO is an all-in-one panel preparation system for standing-seam metal roofing. It was designed and is manufactured in the U.S. The product saves an average of 35 percent in labor costs.

SnapTable PRO was designed for light to 20-gauge metal, including Corten 1 inch; 1 1/2-inch nail strip; 1-, 1 1/2-, 1 3/4-inch SnapLock; 1-, 1 1/2-, 2-inch mechanical seam; Zip-Rib; and many more options.

It is available with a hydraulic notching system, optional cover and optional trailer.

SnapTable PRO comes with a two-year manufacturer’s warranty.

“We wanted to remove limitations from panel preparations,” explains Jonathan Dravecky with Swenson Shear. “With the SnapTable PRO, our metal roof contractors can achieve any angle for any standing-seam panel up to 24 inches. And our trailer option eases transportation to and from the job site.”

Forty Years of Roof Leaks Solved with Standing-seam Copper

Because the show must go on, what served as a canopy-style roof at the Miller Outdoor Theater, Houston, needed repairs in short order. Byrne Metals, Humble, Texas, installed more than 18,000 square feet of copper 238T standing-seam panels during the five-month off season by calling in the rollformer from McElroy Metal that runs panels right onto the roof deck.

Improvements included replacements of the east and west wings, a new soffit for the main sloped roof and the new 20-ounce copper standing-seam roof.

Improvements included replacements of the east and west wings, a new soffit for the main sloped roof and the new 20-ounce copper standing-seam roof.

“Everyone else who had tried to fix the problems focused on trying not to change the appearance,” says Karl Schaack, P.E., president of Price Consulting, Houston. “We realized providing a leak-free solution required some change in the appearance. We got a little pushback at first, but when we explained our design, they were just happy to know it wasn’t going to leak anymore.”

“It was a very challenging job,” says Neil Byrne, president of Byrne Metals. “This is an iconic structure in Houston, originally built in 1968. At the time, it won several awards for its design.”

Unfortunately, right from the start, the design didn’t hold up against the Texas rains. For more than 40 years, anyone who was hired to fix the problem, failed.

Schaack chose 238T symmetrical panels from McElroy Metal for the project. “It’s rigid and it meets high-wind requirements,” he says. “The 238T is symmetrical so if a panel gets damaged, you only have to replace one panel.”

BEFORE: The multi-million dollar renovation in Hermann Park served to correct canopy deficiencies that caused leaks above the stage and audience.

BEFORE: The multi-million dollar renovation in Hermann Park served to correct canopy deficiencies that caused leaks above the stage and audience.

The multi-million dollar renovation in Hermann Park served to correct canopy deficiencies that caused leaks above the stage as well as the audience, putting a real damper on the theater’s cultural and educational event offerings.

Byrne Metals went to work as soon as the 2013 season concluded in early November. Improvements included replacements of the east and west wings, a new soffit for the main sloped roof and the new 20-ounce copper standing-seam roof. The profile was McElroy Metal’s 238T symmetrical standing-seam panel. “Using copper helped the new roof blend in with the original framework,” Schaack says. “Especially as it ages, it will look great, like it’s been there all along.”

Changes in design to the updated roof, as well as a watertight standing seam installation, will help prevent future leaks.

Using copper helped the new roof blend in with the original framework. The profile was McElroy Metal’s 238T symmetrical standing-seam panel.

Using copper helped the new roof blend in with the original framework. The profile was McElroy Metal’s 238T symmetrical standing-seam panel.

The roof area between the existing Corten superstructure was framed with purlins, a metal deck was installed on top of the purlins, then a 1 1/2-inch nail base was installed over the deck along with ice and water shield. A giant reverse-slope diverter was built at the intersection, where the sloping roof connected to the stage wall. Valleys were lowered below the roof plane and there was a slight change in pitch that was overcome by rounding the insulation/plywood over the pitch change.

McElroy Metal’s job-site production equipment simplified the process of installation and made the job site safer. The rollformer was hoisted to the eaves on a scissor lift where panels were conveniently run onto the roof. Not only did this method eliminate the need for an expensive crane to get panels on the roof, it was safer as some of the panels were up to 110-feet long. Because of the unique shape of the roof, panels were cut to fit on the roof.

“We specialize in the unique and difficult,” Byrne says. “This is the kind of job we like. We generally have about 20 to 30 projects under contract at any one time, but this one required a lot of personal attention from our upper management, myself included. We had as many as 30 crew members onsite, working 10-hour days and some weekends, when necessary.”

A rollformer was hoisted to the eaves on a scissor lift where panels were conveniently run onto the roof.

A rollformer was hoisted to the eaves on a scissor lift where panels were conveniently run onto the roof.

As with all Byrne Metals jobs, safety was a major consideration during the evaluation and installation. “There are three things we consider important to staying in business,” Byrne says. “Safety, quality and productivity. We have a fulltime safety person on staff making sure we’re working safely on all jobs. This job required us to take into consideration some other factors like guys working long days, getting fatigued and the speed at which we had to work to complete the job on time. We enjoy a good challenge and Miller Outdoor Theater falls into that category.”

PHOTOS: McElroy Metal

Learning and Trying New Things

The start of a new school year is always an exciting time. As I see my friends post photos on Facebook of their kids’ first days of school, I am reminded of the excitement I felt way back when. I loved wearing a new outfit, seeing friends I hadn’t seen in awhile and anticipating all the fun—and learning—in the year ahead. In a way, I get to recreate those feelings each time I put together a new issue of Roofing. I’m continually learning about the industry and this issue is no different.

For example, in “From the Hutchinson Files”, Thomas W. Hutchinson, AIA, FRCI, RRC, CSI, RRP, principal of Hutchinson Design Group, Barrington, Ill., and a Roofing editorial advisor, explains the virtues of cover boards. As he points out in his article, the use of cover boards can now be considered a good roofing practice.

Meanwhile, Jared O. Blum, president of the Polyisocyanurate Insulation Manufacturers Association, Bethesda, Md., explains a new white paper about polyisocyanurate insulation R-values in “Cool Roofing”. He states the R-value of polyiso roof insulation is reduced at some point at lower temperatures, but within any reasonable temperature range associated with typical building operating conditions in almost any climate in North America the difference appears to be very small.

In addition, we here at Roofing like to learn and try new things. As a result, this issue is interactive! Please download the free Layar Augmented Reality app, which was designed to bring print to life. Then hover over page 45 in the print edition with your smartphone or tablet to view a video about Virginia Polytechnic Institute and State University’s Indoor Practice Facility in Blacksburg, Va., which features almost 1,000 squares of 238-foot-long, curved, standing-seam metal panels. We’re really excited about this new capability and would love to know what you think.

Project Profiles: Education Facilities

Leon Levine Hall of Medical Sciences, Campbell University, Buies Creek, N.C.

TEAM

ZINC INSTALLER: Baker Roofing, Raleigh, N.C.
ARCHITECT: Little Diversified Architectural Consulting, Charlotte, N.C.

A total of 40,000 square feet of interlocking zinc panels are used on the walls and standing-seam zinc panels are installed on the roof of the building to provide long-lasting durability and an impressive visual aesthetic.

A total of 40,000 square feet of interlocking zinc panels are used on the walls and standing-seam zinc panels are installed on the roof of the building to provide long-lasting durability and an impressive visual aesthetic.

ROOF MATERIALS

A total of 40,000 square feet of interlocking zinc panels are used on the walls and standing-seam zinc panels are installed on the roof of the building to provide long-lasting durability and an impressive visual aesthetic. As North Carolina’s first new medical school in 35 years, Campbell University regards this building as an investment in the state’s future needs for health-care professionals and a modern educational space. Campbell wanted a building with permanence to show its commitment to health sciences in the long term, and zinc provides it with a durable metal that can survive decades of internal and external activities.

ZINC MANUFACTURER: VMZ Interlocking panel in 1-millimeter QUARTZ-ZINC and VMZ Standing Seam panel 1-millimeter in QUARTZ-ZINC from VMZINC

ROOF REPORT

The Leon Levine Hall of Medical Sciences, which was completed in June 2013, consists of approximately 96,500 square feet on four floors. The building is designed to create a modern learning environment with simulation laboratories, traditional laboratories, an osteopathic manipulative medicine lab, student group-study rooms, student interaction areas, a resource library and small café. It hosts the School of Osteopathic Medicine and is designed to provide hands-on education for medical students.

PHOTO: VMZINC

Pages: 1 2 3 4 5 6 7 8 9 10

OMG Roofing Products Releases Video on Installing Thermoplastic Single-ply Membranes

OMG Roofing Products has unveiled a video showcasing how easy it is to install thermoplastic single-ply membranes on standing-seam metal recover projects using the RhinoBond induction welding system.

OMG Roofing Products has unveiled a video showcasing how easy it is to install thermoplastic single-ply membranes on standing-seam metal recover projects using the RhinoBond induction welding system.

OMG Roofing Products has unveiled a video showcasing how easy it is to install thermoplastic single-ply membranes on standing-seam metal recover projects using the RhinoBond induction welding system. The video offers a step-by-step demonstration of the application and highlights the ways the RhinoBond System eliminates the traditional hassles of this type of application, including the following:

  • No special width membrane needed.
  • No membrane to install between purlins.
  • No penetrations of the new membrane.
  • No excess membrane buried in the laps.
  • No membrane orientation issues.
  • No fastener jacking.

Watch the RhinoBond standing seam video.

Project Profiles: Retail/Mixed-use

Outlet Collection at Niagara Niagara-on-the-Lake, Ontario, Canada

Team

DEVELOPER: Ivanhoé Cambridge, Montreal

The largest open-air outlet mall in Canada features approximately 23,000 square feet of PTFE fiberglass membrane walkway canopies.

The largest open-air outlet mall in Canada features approximately 23,000 square feet of PTFE fiberglass membrane walkway canopies. PHOTO: Birdair

Roof Materials

The largest open-air outlet mall in Canada features approximately 23,000 square feet of PTFE fiberglass membrane walkway canopies. The membrane canopies exhibit a flying-mast cone design that provides relief from the elements and creates a signature look for the shopping center.

PTFE, or polytetrafluoroethylene, is a Teflon-coated woven fiberglass membrane that is durable and weather-resistant. PTFE fiberglass membranes can be installed in climates ranging from the frigid arctic to the scorching desert heat with a project life in some cases exceeding 30 years.

PTFE fiberglass coating is chemically inert, and the low-surface free energy of the material results in an electrical-grade fabric membrane that is readily rinsed by rain-water. It is also immune to UV radiation. This combination makes PTFE-coated fabric membrane ideal for projects requiring weather endurance and fire resistance.

PTFE fiberglass is ENERGY STAR- and Cool Roof Rating Council-certified. During scientific tests of its solar properties, it was discovered that PTFE fiberglass membranes reflect as much as 73 percent of the sun’s energy while holding just 7 percent on its exterior surface. Certain grades of PTFE fiberglass can absorb 14 percent of the sun’s energy while allowing 13 percent of natural daylight and 7 percent of reradiated energy (solar heat) to transmit through.

PTFE FIBERGLASS MEMBRANE DESIGNER, FABRICATOR, INSTALLER: Birdair

Roof Report

Located beside the Queen Elizabeth II Highway, less than 20 kilometers from the U.S. border, the 520,000-square-foot shopping center features 102 retailers, including Canada’s first Pandora outlet, White House Black Market outlet and Bass Pro Shops Outpost. Other sought-after brands at the center include a Kate Spade Outlet, NIKE Factory Store, Calvin Klein Outlet and Michael Kors Outlet.

The Niagara Outlet Collection was developed to attract shoppers and visitors who might have otherwise crossed the U.S. border to shop in the Fashion Outlets of Niagara Falls, the Walden Galleria or the Boulevard Mall. David Baffa, Ivanhoé Cambridge senior vice president of retail development, said the developer wants the new outlet collection to be part of the Niagara experience.

Outlet Collection at Niagara is committed to corporate responsibility and environmental sustainability and has a number of design features throughout the property to raise awareness of its green initiatives. Its canopies make the open-air concept possible, reducing energy consumption because the common areas do not need to be heated or cooled. Some of the public buildings, like guest services and the eatery, have been designed so that they can be opened to the outdoors in favorable weather, thus saving energy and connecting people to the outdoors.

Pages: 1 2

‘Z’ Closure Ventilates Peaks of Standing-seam Metal Roofs

Glick Metals LLC has announced its Snap-Z vented “Z” closure designed for standing-seam metal roof applications.

Glick Metals LLC has announced its Snap-Z vented “Z” closure designed for standing-seam metal roof applications.

Glick Metals LLC has announced its Snap-Z vented “Z” closure designed for standing-seam metal roof applications. The Snap-Z product allows installers to vent the peak of a standing-seam metal roof in such a way that air is allowed to flow but water and snow infiltration are restricted. The Snap-Z is designed to work with 1-inch, open-hem metal ridge caps. It fits between the ribs of standing-seam roof panels. Snap-Z, which is covered by a 20-year limited warranty, comes standard with a matte black finish and is available in 15 additional colors to coordinate with a variety of roof-color offerings. It is available in 1-inch, 1 1/2-inch and 1 3/4-inch heights. Custom lengths may be ordered.

Install Standing Seam over Shingles

McElroy Metal has introduced a method for installing standing-seam metal roofing directly over asphalt shingles without a tear-off.

McElroy Metal has introduced a method for installing standing-seam metal roofing directly over asphalt shingles without a tear-off.

McElroy Metal has introduced a method for installing standing-seam metal roofing directly over asphalt shingles without a tear-off. The system is designed around the patent-pending 138T Shingle Recover Clip and 138T symmetrical standing-seam panel. The main challenges when installing a metal roof directly over shingles with no underlayment are clip alignment and abrasion on the underside of panels. The 138T Shingle Recover Clip is long enough to sit on two shingles, aligning the clip into the plane of the roof. The clip has eight holes so the installer can align the fasteners through the ends of the shingle tabs. The clip’s 3/4-inch height holds the panel up so it does not touch the surface below but allows a contractor to walk on the roof without damaging the clips or panels.

Thin-film PV Provides Greater than 16 Percent Cell Efficiency

MiaSolé has made available its second-generation FLEX Series Modules.

MiaSolé has made available its second-generation FLEX Series Modules.

MiaSolé has made available its second-generation FLEX Series Modules. The CIGS-based flexible thin-film PV modules provide greater than 16 percent cell efficiency for many types of roof applications. FLEX-02W module is 39 by 102 inches, rated at 360 watts and designed for low-slope commercial single-ply roof systems. FLEX-02N module is 14.6 by 102 inches, rated at 120W and designed for standing-seam metal roofs. Both modules bond to the roof surface with a simple peel-and-stick adhesive, which eliminates the need for racking and reduces labor and logistics costs. The FLEX-02 Series modules are IEC 61646, IEC 61730 and UL 1703 certified.

Notch, Slit and Hem Standing Seam

Swenson Shear’s Snaptable PRO can notch, slit and hem standing-seam panels for any commercial, industrial or residential job site.

Swenson Shear’s Snaptable PRO can notch, slit and hem standing-seam panels for any commercial, industrial or residential job site.

Swenson Shear’s Snaptable PRO can notch, slit and hem standing-seam panels for any commercial, industrial or residential job site. The product offers 60-inch slitting and hemming capabilities for standing-seam profiles from 12 to 22 inches. It saves an average of 35 percent in labor costs and is available with a two-year manufacturer’s warranty. In addition, Swenson Shear has spent the last year revamping all product lines to continue to provide the highest-quality metal panel preparation for concealed and exposed fastener panels, soffit and siding, and stone-coated steel.