Editor’s Note

My family and I recently went to an expo at the BMO Centre. It’s a reminder that contemporary architecture can still produce a strong physical response. As you approach the building, the scale becomes the experience. The level of detail holds up, but it’s the mass that registers first.

Some will argue the scale is excessive. That may be true. But there is also a clear effect when a building makes the pedestrian feel small. It forces attention. It pulls you into the present moment in a way smaller buildings rarely do. Even with kids in a stroller, moving quickly, it’s difficult not to stop and take in the size of it.

The most defining exterior surface is the roof and canopy system, executed using a standing seam assembly from BEMO. The system sits on a BEMO-FLEX substructure, allowing the roof to follow complex geometry without introducing segmented breaks.

Approximately 37,000 square meters of aluminum roofing were installed, finished in a brushed, copper-toned FEVE coating. The panels were roll-formed on site in lengths exceeding 39 meters, which is a deliberate move. Fewer joints means fewer failure points, particularly in a climate with freeze-thaw cycling.

The canopy is where this system is pushed hardest. Thousands of unique panels were fabricated to accommodate curvature, tilt, and transitions. This is not a standard standing seam application. It is a customized deployment where geometry drives fabrication tolerances.

The vertical enclosure relies heavily on aluminum composite material, specifically Alucobond panels installed as a rainscreen system.

This is a predictable choice. Composite panels offer a balance between rigidity, weight, and finish control. On a building of this size, reducing dead load while maintaining panel flatness is critical. Solid plate aluminum would introduce unnecessary weight; thinner sheet systems would risk oil-canning.

The façade reads as continuous at a distance, but up close the system is fully expressed. Panel joints, reveals, and fastening logic remain visible. This is not a concealed system. It is intentionally legible, which aligns with the building’s overall industrial language.

The glazing package combines fabrication by TVITEC with installation by Ferguson Glass.

The scope includes roughly 55,000 square feet of double-glazed aluminum curtain wall, along with skylights and interior glazed partitions.

The system is not particularly exotic, but the geometry is. Portions of the curtain wall are segmented and tilted, meaning standard unitized repetition is disrupted. That introduces alignment risk at every mullion transition.

Thermally broken aluminum framing is used throughout, which is non-negotiable in Calgary’s climate. The performance challenge is less about the glass itself and more about maintaining continuity of the air and vapor barrier across a façade that is constantly shifting and morphing.

At the base and in select zones, the building incorporates precast and masonry supplied in part by Knelsen Sand & Gravel and Endicott.

This is doing a different job than the metal systems. It establishes durability at ground level, where impact, moisture, and wear are highest. It also introduces material weight, which the upper portions of the building intentionally avoid.

Unlike the Calgary Central Library, this is not a highly textured precast expression. The emphasis is on robustness and continuity rather than surface articulation.

Even if architects do not like the form, there is value in studying the level of execution. The materials are not unusual, but the consistency is. It is a procedural mammoth that depends less on the inherent qualities of any one material and more on the discipline of assembling them without drift.

Until next time,