Figure 4.3.9 shows a wall/roof junction, again in a steel frame building. The exterior gypsum serves
as the air barrier, running past the spandrel beam. Flexible membranes are used to seal the air
barrier at the top of the stud wall. The wall air barrier is also sealed to the roof membrane to
prevent leakage at this point.
Wall air barrier
sealed to roof
Flexible seal to
Figure 4.3.9 Metal Stud Wall / Flat Roof Edge (Quirouette)
BIA, "Brick Veneer, Steel Stud Panel Walls", BIA Technical Notes on Brick Construction No.28B, 1987.
CMHC, "Seminar on Brick Veneer Wall Systems", Canada Mortgage and Housing Corporation, 1989.
Owens/Corning Fiberglas, Design Guide for Insulated Buildings, Toledo, Ohio, 1981.
Quirouette, R.L., "Metal Stud Walls", Construction Details for Air Tightness, Record of the DBR Seminar/
Workshop, Proceedings No.3, NRCC 18291, National Research Council of Canada, 1980.
Steven Winter Associates, "Catalog of Thermal Bridges in Commercial and Multi-Family Residential
Construction," ORNL/Sub/88-SA407/1, Oak Ridge National Laboratory, 1989.