PART 2: Window Selection

Windows for the house are to be selected by you from a local BC supplier to meet the
minimum thermal performance criteria of R-5.0 (U-0.20).
List the manufacturer and summarized the relevant information for your selected
window including U-value, SHGC and any other criteria you might find useful. (5 marks)
For the selected windows, you will need to evaluate the window frame design on the 9-
point scale covered during the window class and Section 5.9 of the course textbook. To
do this, draw a separate 1:1 scale sketch through the window sill profile and evaluate
the following 9 criteria directly on the drawing (10 marks). Use your chosen window
profile in the detailing of the assemblies.
1. Continuity of water shedding surface (WSS)
2. Continuity of water resistive barrier (WRB)
3. Vertical or sloped water shedding surface
4. Use of continuous compression gaskets for operable vents
5. Use of continuous compression gaskets or shimmed tape at glazing stops
6. Unobstructed drainage path within window between WSS and WRB
7. Capillary break between WSS and WRB
8. Continuous air barrier
9. Durable materials at frame joints