Unit 306 First Fix Roofing and Stairs

A hipped roof

• Larger than 12 degrees

• Less than 8 degrees

• Returns around the external corner of a dwelling

• Returns around the internal corner of a dwelling

What is the name given to a roof which incorporates a purlin as mid-support for the rafters

• Mansard

• Gambrel

• Double

• Single

Which of the following is required as well as the run, in order to calculate the length of a common rafter?

• Rise

• Span

• Width

• Gauge

What is measured to work out the span of a roof?

• Inside of wall plate, to inside of wall plate

• Outside of wall plate, to outside of wall plate

• Internal wall, to internal wall

• Diagonals of floor plan

What method is used to measure rafter lengths?

• Trammel

• Compass

• Ready reckoner

• Roofing square

Which two methods can be used to work out the length of a common rafter?

1, Ratios

2, Geometry

3, Calculations

4, Ergonomics

• 2 & 3

• 1 & 2

• 3 & 4

• 2 & 4

In the image, what does the distance 'X' represent?

• Rise

• Run

• Going

• Span

What cuts make up a birds mouth?

• Seat and plumb cuts

• Seat and edge cuts

• Face and backing cuts

• Backing and edge cuts

What roofing components supports the rafters mid-length?

• Ridge

• Purlin

• Wall plate

• Dragon-tie

A purlin is supported by

• Strut

• Collar

• Ceiling joist

• Valleyboard