Observation

Most candidates were able to:

• state the function of foundation;
• sketch wide strip foundation and label the parts.

However, majority of the candidates were unable to state the function of:

• tongue and groove boarding;
• joist and wallplate.

The expected response to question 3 is as given below;
3(a)       Function of foundation

            The function of a foundation is to:

• transmit the weight (load) of a building both live and dead loads to the subsoil without failure;
• support the building by providing stable base for the structure.

 

(b)

3(c)       Function of each of the following in a suspended timber floor construction:

(i)         Tongue and groove boarding - provides a stable bearing surface for the occupants.
(ii)         Joist - supports the timber floor boarding and transmits its load onto the wall plate.

• Wall plate - support and spread the timber floor’s load on the bearing wall.

• 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.
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: