Facade

The glazed envelope, from setting-out to final seal

Curtain wall and structural glazing systems, together with the skylights, canopies and entrance systems that complete the building face.

The facade is the part of a building everyone sees and the part that has to survive everything the weather does to it. It carries its own weight and the wind load across every span, moves as the structure moves, sheds water at every joint, and does all of it while staying visually flat across storeys. Getting that right is a setting-out and engineering problem long before it is a glass problem.

H.V. Enterprises works across the glazing systems the envelope actually needs — semi-unitized and unitized curtain walling, pressure-plate systems, suspended spider glazing, and the skylights, canopies and automatic entrances that finish it. Survey, fabrication and installation stay with one team, which is what keeps a grid line true from the podium to the top floor.

Systems

  • Semi Unitized Glazing
  • Unitized Glazing
  • Pressure Plate Curtain Glazing
  • Suspended Spider Glazing
  • Skylight / Canopy
  • Automatic Sensor Doors — Linear, Revolving & Swing

Where it is used

  • Commercial towers and corporate headquarters
  • Retail frontage, showrooms and podium glazing
  • Atriums, skylights and glazed roofs
  • Entrance lobbies and canopies
  • Recladding and facade replacement on existing buildings

What decides the result

Unitized against stick-built
Unitized panels are assembled and glazed in the workshop and lifted into place as finished units, which cuts time and scaffolding on site. Stick systems are built up in place, which costs programme but suits irregular geometry and smaller elevations. The choice follows the building, not a preference.
Movement and tolerance
A structure deflects, shortens and moves under load and temperature. The facade has to accommodate that at its joints. A system detailed tight enough to look perfect on day one and given nowhere to move is a system that will eventually load its glass.
Water management
Every serious curtain wall drains rather than relies on being sealed. Water that gets past the outer line is collected and returned outward through the system. Designing for a perfect seal instead of a drained one is the most common cause of facade leaks.
Setting out
A facade grid is established from a survey of the built structure, not from the architect's grid. Concrete is never exactly where the drawing puts it, and an error carried up an elevation shows as a visible kink in the glass line.

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