Question 4
(a) State four functional requirements of a window.
(b) Sketch a casement window with a vent light and label the following
(i)vent light
(ii)window frame
(iii)transom
(iv)mullion
Observation
Most candidates were able to:
- state the functional requirements of a window correctly;
- sketch a casement window with a vent light;
- label the parts correctly.
However, some of them failed to:
- sketch the casement window with a vent light correctly.
The expected response to question 4 is as given below:
(a ) Functional requirements of a windows are:
(i) fire resistance;
(ii) sound insulation;
(iii) strength and stability;
(iv) thermal insulation;
(v) exclusion of wind and rain water;
(vi) it allows ventilation into the room;
(vii) it allows light into the room.
(b) sketch of a casement window:
