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Snow bars precipitate safety at school

Architects for the Alton Hall Elementary School in Galloway, Ohio, recognized the need for snow retention, and McHenry, Ill.-based Sno Gem Inc.'s Sno Barricade was specified and attached to the standing seam roof.

Architects for the Alton Hall Elementary School in Galloway, Ohio, recognized the need for snow retention, and McHenry, Ill.-based Sno Gem Inc.'s Sno Barricade was specified and attached to the standing seam roof. Mike Parkinson, associate project manager at Cincinnati-based SHP Leading Design, says his company used Sno Barricade on dozens of projects and it was specified for the Alton Hall Elementary School for durability and performance. "I can't remember the last time it wasn't on one of our projects," he says.

Parkinson says Sno Gem designs systems specific to each project. "With the design criteria, they run calculations for the project and prescribed a two-rail system around the entire roof to protect the occupants from potential sliding snow and ice," he says.

Sno Gem calculates snow retention solutions considering the layout of the standing seam metal roof, slope, length of run, panel width and annual snowfall. Jim Carpenter, vice president of operations at Sno Gem, says every metal roofing layout is different and requires calculations. "Our calculations are based on results obtained from extensive testing of our clamps," he says. "In addition, we always apply a two-to-one safety factor when calculating a snow retention system; essentially meaning each Sno Gem recommendation is always twice as strong as the intended system."

Washington, Pa.-based Rush Architectural Metal Erectors Inc. (R.A.M.E.) installed 1,850 feet of Sno Barricade around the building's perimeter. Additionally, R.A.M.E. installed Barricade Plate, an accessory designed to hold back thinner amounts of ice and snow that could pass beneath the bar. Barricade Plate is installed on the upslope side of the bar in the middle of the panel and is held in place by a tek screw not visible from the ground. Both products are available in colors to match all roofing panels.

Albert Rush, owner of R.A.M.E., says Sno Barricade doesn't compromise roofing warranties because it attaches without penetrating panels. "Sliding snow and ice is a dangerous problem building owners don't have to deal with any more because of engineered snow retention systems," he says.

R.A.M.E. installed 42,143 square feet of Bossier City, La.-based McElroy Metal Inc.'s 22-gauge, 16-inch-wide Maxima metal roof panels with pencil ribs and 2-inch-high seams with a two-coat fluoropolymer finish in a custom color. Additionally, R.A.M.E. installed McElroy Metal's 22-gauge, 12-inch-wide Marquee-Lok flush-profile metal wall panels in a custom color with a two-coat fluoropolymer finish.

Livonia, Mich.-based Environmental Glass Inc., the glazing contractor for the project, installed Wausau, Wis.-based Wausau Window and Wall Systems' SUPERWALL Series aluminum curtainwall with a custom-color two-coat fluoropolymer finish; and Walker, Mich.-based Tubelite Inc.'s T14000 Series aluminum storefront with a custom color two-coat fluoropolymer finish.

Additionally, Environmental Glass installed Fort Scott, Kan.-based Peerless Products Inc.'s EnerGsave aluminum windows with a custom-color two-coat fluoropolymer finish; and Wausau, Wis.-based Major Industries Inc.'s Guardian 275 with Insul 15 Fiberglass Sandwich Panels translucent wall system with a custom-color two-coat fluoropolymer finish.

Columbus, Ohio-based Air Systems Diversified Inc. supplied Schofield, Wis.-based Greenheck Fan Corp.'s EHH-501 Aluminum Fixed Exterior Louvers with a custom-color two-coat fluoropolymer finish. Columbus, Ohio-based The Altman Co., the general contractor for the project, installed the louvers.

Greenheck Fan Corp., www.greenheck.com

Major Industries Inc., www.majorskylights.com

McElroy Metal Inc., www.mcelroymetal.com

Peerless Products Inc., www.peerless-usa.com

Sno Gem Inc., www.snogem.com

Tubelite Inc., www.tubeliteinc.com

Wausau Window and Wall Systems, www.wausauwindow.com