By Alan M. Petrillo
Fire station bay doors serve a number of functions: allowing quick and safe egress of fire apparatus; sealing out heat, cold, and inclement weather; and lending a visual appeal to the aesthetics of the building.
It's those main considerations, along with cost and maintenance factors, that fire department personnel and designers keep in mind when putting bay doors on new fire stations or outfitting older stations with newer model doors.
Four-Fold Doors
Steve Bonacci, assistant sales manager for Electric Power Door, says his company has been in the door business for 93 years and he's spent 40 years with them. "Fire departments generally have three choices for their apparatus bay doors," Bonacci points out. "The least expensive is an overhead sectional door. Then there's the rolling steel door, which is essentially a curtain that rolls up. Third, there's the four-fold door."
Bonacci notes that four-fold doors are bi-fold doors that split in the middle and open both to the left and right. "We only market four-fold doors for fire stations because they are high-cycle and low-maintenance," he says. "They are custom-designed, and owners can spec what they want-how many windows, an arched opening, or wood cladding over the steel. The sky's the limit as to the design."
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The Sacramento (CA) Fire Department chose to install Electric Power Door four-fold doors on its Fire Station Number 5. (Photo courtesy of Electric Power Door.) |
Four-fold doors can be engineered to be hurricane- and tornado-resistant, Bonacci says, or even bullet- and blast-resistant if needed. "We can cover all the boundaries a station may need."
Kevin Landgraff, sales manager for Door Engineering and Manufacturing, says four-fold doors have been growing slowly in popularity for the past dozen years or so. "Four-fold doors are the main product we make for fire station apparatus bays," he says. "They have an advantage in operational speed, opening in less than seven seconds, and also are energy-efficient in keeping heating and cooling losses to a minimum. Many of them have large glass panels in them that are one-inch, insulated, low-E, tinted high-performance glass."
Besides performance and speed, four-fold doors also have the advantage that there is no wear like that on critical components at the top of overhead sectional or rolling steel doors. "With a four-panel door, you have two panels folding off to each side, operated by an overhead mounting that rotates to pull the door open and push it closed," Landgraff says. "Perhaps a weather seal may wear out with age, but that won't affect the operation of the door."
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Hormann-Flexon installed its Speed Guardian 4000 rolling steel doors at the El Paso (TX) Fire Department's Station 37. (Photo courtesy of Hormann-Flexon.) |
Landgraff says that Door Engineering and Manufacturing, which has be