Pemko

Thresholds

• Saddle and half saddle thresholds come in widths from 3 to 12 inches and heights of 1/4 or 1/2 inch.
• Latching panic thresholds are for doors with vertical rod exit devices that latch into the threshold.
• Thermal barrier thresholds (FG models) suit exterior doors in cold or hot climates.
• Modular ramp thresholds (R series) handle level changes. Models marked ADA compliant are listed with their height and offset.

Seals, sweeps and door bottoms

Perimeter gasketing seals the head and jambs. Inserts include silicone, sponge neoprene, PemkoPrene, Eco-V vinyl, pile and nylon brush. Door sweeps and U-shaped or L-shaped door shoes seal the bottom edge, and the 222 and 2221 shoes are made for hollow metal doors. Automatic door bottoms (411, 420, 434 and 4301) drop when the door closes, and the STC411 is an acoustic model. See thresholds and weatherstripping.

Fire and smoke seals and astragals

Adhesive-backed S44, S88, PK33 and PK55 gasketing is sold for fire and smoke openings. Check that any seal you add to a rated door is listed for that use, as described in fire door assemblies: what voids the label. Astragals cover meeting stile, overlapping, T-shaped and security types for pairs of doors.