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3 marksCarpentry: Roofs, Doors, Windows and Stairs

CSEC Industrial Technology · 2018 · Paper 2 · Question 2(c)

If the total rise of the roof in Figure 2 is 1.5 m, calculate the actual length of the common rafter. (Note: You are required to list the formula and show your working. The overhang should not be included.)

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Other parts of this question

  1. 2(a)On page 9 produce, using a neat single line diagram, a roof framing plan of the hipped end of the roof in Figure 2 to show any FOUR of the following roof…[6 marks]
  2. 2(b)(i)State the purpose of the ridge board in the design of the roof in Figure 2 on page 8.[2 marks]
  3. 2(b)(ii)Name FOUR types of roof coverings that are suitable for the roof in Figure 2.[4 marks]
  4. 2(b)(iii)Use a suitably labelled sketch to show how a common rafter should be fixed to the wall plate.[3 marks]

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