Architectural Fire-Rated Door in Ottawa

This Ottawa project shows a pair of architectural fire-rated steel doors installed in a hollow-metal frame at the side entrance of a commercial building. The blue diamond marker on the leaf identifies the opening as part of the building's fire-compartment zoning — a reference the facility uses to keep its fire separations documented. Behind that quiet exterior is a tested, certified assembly that has to perform on demand, and every part of the install was carried out to the listing requirement so it does.

Architectural fire-rated doors are where appearance and life-safety meet. The owner wants a clean, durable entrance that suits the building; the building code wants a door that contains fire and smoke for a rated period. A fire door only delivers that protection as a complete assembly — the slab, the frame, the hinges, the closer and the latch were all tested together, and substituting any uncertified component voids the rating. We treat the whole opening as one listed system rather than a door that simply needs to be hung.

For this double-door opening we set the frame plumb and square and anchored it to the structure with the specified fasteners, then hung both leaves on fire-rated hinges sized for the weight of the steel slabs. The clearances around each leaf — typically no more than about 3 mm at the head and jambs — were held within tolerance, because a gap larger than the listing allows lets smoke and hot gases pass around the door and defeats the separation. On a pair like this, the meeting stiles and the astragal between the leaves have to align so the doors close against each other and seal.

Hardware is where fire doors are most often compromised, so we matched every item to the assembly. The closers are fire-rated and sized to pull the heavy leaves fully shut from any position. The latching positively engages the strike without anyone having to turn a knob, because a fire door that is closed but not latched offers no protection. On a double door the leaves have to close in the correct sequence — the active leaf last — so a coordinator keeps the order right and lets the astragal seat. We adjusted the closing and latch speed so the doors come home firmly and quietly, cycle after cycle.

This project ties directly to our main fire-rated doors Ottawa service, where we supply, install and inspect fire door assemblies for commercial buildings, multi-unit residential properties and industrial facilities. It also overlaps with our architectural door work, since statement and oversized openings frequently carry a fire rating that the design still has to respect. Where the same opening has to be both secure and code-compliant, our high-security door work covers the overlap.

The result is an architectural fire-rated door that looks like a solid commercial entrance and works like the life-safety device it is — closing fully, latching positively and sealing its compartment every time. For Ottawa property managers and building owners, that combination of finish and compliance is exactly what a fire door is supposed to deliver, and it is the standard we hold on every fire-rated installation across the city and the Ottawa Valley.

Problems We Solved

• A fire-rated opening that no longer closed and latched on its own
• Hardware that did not match the door’s fire rating
• An assembly that would not have held smoke or flame in a fire

The Result

• A labelled fire-rated door hung true in a rated frame
• Closer and latching hardware that seats the door every cycle
• An opening that meets its fire-separation requirement again