Retrofit … with metal!

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Berwald Roofing fabricates, curves and installs Garland’s R-Mer panels for Minnesota ice arena /

Like many community ice arenas across the country, the New Hope Ice Arena in New Hope, Minn., needed some major renovations.

GarlandThe facility, built in the 1970s during a nationwide boom in the construction of community ice arenas, still had its original ice rink. In addition to installing a new rink, the city also wanted to improve the efficiency of the building by replacing its current Freon-based refrigeration system with a more energy conscious ammonia-based system.

On top of that, the facility’s single-ply EPDM roof was more than 25 years old and had been deteriorating for several years due to various puncture holes, severe UV damage, fastener back out and wet insulation. Snow and ice had also damaged the roof considerably. Replacing the damaged single-ply roof with a watertight, energy efficient solution was a critical step in the renovation process.

Without a properly performing roof, any upgrades to the building’s refrigeration system would not be effective. Additionally, the leaky roof increased the risk of damage to a newly installed ice rink.

CS-Garland2Based on the performance objectives of the project, a standing seam metal system was installed to replace the facility’s existing roof and provide a long-term, watertight solution. Berwald Roofing Company of North St. Paul handled the fabrication and installation of more than 36,000 square feet of 24-gauge, 16-inch wide R-Mer Span structural standing seam panels from The Garland Company.

The continuous panels measured 150 feet, so running the panels onsite required some extra hands.

“Garland sent out a roll former and we ran panels for two days,” says Collin Prochnow, of Berwald Roofing. “We had guys about every 20 feet carrying panels off the machine. Couple days later, Garland sent out a curver and we curved the panels. Then we started hoisting them to the roof with a spreader bar and a large crane.”

CS-Garland5The standing seam metal system was chosen for this project for a variety of reasons, including its superior strength and durability to withstand harsh weather conditions; improved aesthetic value; and the minimal maintenance required for the system to maintain its performance.

Additional benefits of metal roofing systems include its low life-cycle cost and long-term performance. R-Mer Span panels are engineered to provide the industry’s highest wind uplift rating and designed to withstand 50 pounds of snow per square foot — critically important for a facility located in an area that on average receives 50 inches of snow every winter.

The panels provide the guaranteed watertight protection needed for a long-term, high-performance solution. In addition to its strength and unsurpassed watertight protection, R-Mer Span offers the functional diversity needed for unusual or complex roofing projects.

The ice arena’s original roof system was removed and additional polyisocyanurate insulation was installed to achieve an R-value of approximately 40, helping to maximize the energy efficiency of the facility. An ice and water shield underlayment was then installed over the insulation. Bearing plates were secured to the arena’s wooden deck and the metal panels were attached to one-piece clips, eliminating the need for exposed fasteners and allowing for thermal movement.

CS-Garland6As an additional measure of protection, metal edge fascia and soffits were installed around the entire perimeter of the facility, while columns were capped with metal. A high-performance snow retention system — the S-5! SnoRail — that meets the severe requirements of the harshest of snow loading was installed on the roof, providing protection from the harsh Minneapolis area winters.
Important/interesting details related to project: All improvements to the ice arena, including the installation of the standing seam metal roof system, are expected to save the city about 30 percent annually in energy costs. Additionally, this high-performance metal roofing solution was provided by a single, full-service manufacturer and is covered by a 30-year warranty.

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