K25 - Traditional cut roofs

Traditional cut roofs relate to single roofs, double roofs and triple roofs.

Which is NOT a single roof?

• Couple roof

• Close-couple roof

• Close-single roof

• Collar-tie roof

What is the component with a question mark?

• Feet

• Rafter

• Fascia

• Purlin

The birdsmouth found on a roof rafter should be marked at...

• 1/2 of the width of the rafter

• 1/3 of the width of the rafter

• 1/4 of the width of the rafter

• 1/5 of the width of the rafter

If the plumb cut is set at 40 degrees, what is the degree of the seat cut?

• 60 degrees

• 50 degrees

• 40 degrees

• 30 degrees

The roof in the image is called a...

• Couple roof

• Close couple roof

• Collar-tie roof

• Double roof

This type of roof is called a...

• Mansard roof

• Jerkin-head roof

• Gambrel roof

• Lean-to roof

A 'double roof' can be recognised because it has...

• Common rafters

• Wall plates

• Purlins

• Ridges

What is the name of this hip mechanical joint, seen in the image?

• Snake tie

• Dragon tie

• Lizard tie

• Kraken tie

Which Building Regulations apply to traditional cut roof?

• Part A Structural

• Part F Ventilation

• Part L Conservation of fuel and power

• All three of them

What is a 'Dihedral angle'?

• The angle to find the crown rafter pitch

• The angle to find the birdsmouth

• The V shape on top of the hip rafter to align to the adjoining roof members

• The angle to find the pitch