Question 4
- a) List three roof covering materials.
b) Sketch in line diagram, each of the following types of roof:
(i) monopitch roof;
(ii) lean-to roof.
c) Use a sketch to illustrate how the air test is conducted on a drain line.
Observation
Most of the candidates were able to:
- list three materials used in roof covering.
- sketch in line diagram monopitch roof and lean-to-roof.
- sketch how the air test is conducted on a drainline.
However, the candidates failed to label the sketch of how the air test is conducted on a drainline.
The expected response to question 4 is as given below:
- (a) Roof Covering Materials:
- galvanised iron sheets;
- aluminuim roofing sheet;
- clay roof tiles;
- palm fronds;
- bamboo;
- wood shingles;
- asbestos cement roofing sheet;
- concrete roof tiles.
(b) 
(c)