Façade Engineering

‘Facades have become complicated beyond the skills of architects, structural and mechanical engineers. Facades require a dedicated engineer with a particular range of skills and experience, who understands their behavior and can undertake their design, manufacture and installation better, more efficiently and more comprehensively than can a traditional architect, structural or mechanical engineer.’

-Society of façade engineers (cibse)

Façade is the external envelope of the building above the ground level. There are many materialized facades exists in the field such as,

  • Glass
  • Cladding
  • Stone
  • Masonry
  • Curtain wall
  • Other cladding types

At the stage of design and engineering a façade, there are major aspects to be considered and incorporated to the design and its specifications as follows.

  • Structural steadiness and their behaviors
  • Durability
  • Sustainability
  • Weather tightness
  • Interaction with super structure
  • Thermal gains and losses through the façade
  • Occupant comfort and energy efficiency
  • Shading
  • Ventilation
  • Natural lighting
  • Condensation
  • Fire behavior of the building envelope
  • Acoustic performance
  • Safety and survivability
  • Security
  • Maintenance and build-ability

Façade engineer’s acts in a façade project

  • Designing
  • Incorporate knowledge into architect’s design
  • Incorporate knowledge into quantity surveyors work
  • Incorporate knowledge into structural & mechanical engineer’s statics
  • Involving with the surveying or diagnostic and remedial work
  • Research and testing

Façade Engineer

  • Overall background with architectural, structural or building physics
  • Cladding skills
  • Knowledge of rage of material, system performance types
  • Building envelope physics
  • Analytical modelling


Contribution of a façade engineer

  • Delivering a façade that do what is required
  • Excellence in design
  • Risk control
  • Driving cost out
  • Continuity through fabrication and installation stages
  • Quality control in design becomes a physical reality
  • Verifying performance
  • Troubleshooting


Dasun Siriwardena PEng(UK) MSPE
BSc (Hons) in Construction Engineering, QS & BE, PM-(U.A.E), CSWA-Simulation
P.O Box. 12500, #1/45, Dias Place,
Panadura, Sri Lanka.
Mobile. +94 774 298 126

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