British Columbia Institute of

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BSCI 9110 - Building Envelope 1

Building Science Part-time Studies Course

School of Construction and the Environment

BCIT is planning for a substantial return to on-campus activity for the fall 2021 term as informed by BC Public Health Officer guidelines. Refer to each course listing for details.

Course Details

This course will cover the design and performance of above grade Wall and Fenestration assemblies. The remaining building envelope assemblies of the building envelope will be covered in the Building Envelope II course. Topics include: a) Introduction to the “building envelope”, and its relationship with the structure, service systems, and fabric of the building. Introduction to the four primary sets of functions (support, control, finish and distribute); b) Overlapping interests of the building envelope consultant, architect, structural engineer, mechanical and electrical engineers, and other building professionals during the design and construction phases of the building envelope; c) Exterior and interior environmental Loads, as well as loads from the building envelope itself; d) Design and performance aspects of the Wall assemblies with respect to the control of rain penetration, heat loss, vapour diffusion, air leakage, condensation, as well as improving long term durability. Manual and computer-based hygrothermal analysis of the Wall assemblies; e) Design and performance aspects of the Fenestration assemblies (windows, curtain walls, window walls, store front, & skylights) with respect to the control of rain penetration, heat loss, vapour diffusion, air leakage, condensation, as well as improving long term durability aspects; f) Designs that minimize thermal bridging at Wall and Fenestration assemblies, as well as their transitions with adjacent building envelope assemblies; g) 2D and 3D building envelope details pertaining to moisture, air, and heat management, with the specific focus on the “continuity” of the building envelope control layers (rain penetration control, thermal insulation, air barrier, and vapour retarder/barrier) at the field of the Wall and Fenestration assemblies, as well as their transitions with adjacent building envelope assemblies; h) Overview of the requirements of the applicable Building Codes and Standards (National Building Code of Canada, British Columbia Building Code, Vancouver Building By-Law, Ashrae 90.1, NAFS, etc.) with respect to moisture, air, and heat management at Wall and Fenestration assemblies.


BSCI 9000 and BSCI 9020



This course isn't currently offered through BCIT Part-time Studies. Please check back next term or subscribe to receive email updates.

Learning Outcomes

Upon successful completion of this course, the student will be able to:

  • Design the primary Wall Assemblies and Windows for low-rise, and medium and high rise buildings.
  • Calculate, to the appropriate level of accuracy, the structural and hygrothermal response of the assembly by applying the main techniques for the analysis – both manual and computer based – of these components of the building enclosure.
  • Recommend procedures – both quantitative and qualitative – to obtain the necessary performance.
  • Advise on the Commissioning and the Maintenance of Wall and Window Assemblies.
  • Diagnose, using both analytical methods and test procedures, problems and problem Wall and Window assemblies.
  • Recommend repairs to Wall and Window Assemblies for low-rise, and medium and high-rise buildings.
  • Apply the necessary codes and practices.

Effective as of Fall 2011

Related Programs

BSCI 9110 is offered as a part of the following programs:

School of Construction and the Environment

  1. Building Engineering/Building Science
    Full-time/Part-time   Master of Applied Science
  2. Building Science
    Full-time/Part-time   Master of Engineering


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