Alma, Wisconsin

If your building is open to the public — retail, clinic, city hall — Wisconsin adoption of ANSI A117.1 requires automatic or power-assisted doors for accessible routes. Push-button operators must meet activation force under 5 lbf and hold-open time of 5 seconds minimum. We install and adjust low-energy operators from Horton and Besam to meet these specs. A non-compliant door can trigger a complaint and a DOJ review.

Standard LCN closers have fluid that thickens below 0°F; at -10°F, latch speed slows to the point doors don't close. That causes constant alarms in fire-rated openings. EPDM threshold seals compress permanently after three or four freeze cycles, leaving a 1/8-inch gap for drafts and ice. Aluminum thresholds contract enough to crack silicone caulk. We replace seasonal kits with low-temperature fluid for closers and use silicone-rubber seals rated for -40°F.

Sectional dock doors at warehouses in Alma turn 10,000 to 15,000 cycles per year. Spec sheets say torsion springs last 10,000 cycles; we replace them proactively at 8,000 to avoid a mid-shift snap. Automatic sliding doors on storefronts need quarterly adjustments — sensors drift, rollers wear. Manual hollow metal doors get semi-annual hinge pin lubrication and closer speed check. That's two calls per year for dock doors, four for automatic entries.

Replace when the frame is rusted through at the anchor points — common on Alma's older loading docks. If a fire door's 3-hour rating is compromised by 10+ repairs (over-drilled holes, patched skins), a UL label replacement is mandatory for insurance compliance. Doors with twisted stiles or dropped hinges that can't be brought back to plane need new frames. Generally, if repair costs exceed 60% of replacement and the door is over 15 years old, replace it.