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WorksheetsRoof Structures
Total questions: 20
Worksheet time: 10mins
What is this type of roof structure called?
Monopitch roof
Pitched roof
Monitor roof
Flat roof
Which of the following Building Regulations DOES NOT apply to roof construction?
Part L
Part C
Part G
Part A
Select all the answers that relate to the required functions of a roof:
Strong - it must safely transfer loads through to the building
Weatherproof
Resist the passage of sound
Resist heat loss
Resist spread of fire
Which of the following would not be a suitable pitch for a roof?
45 degrees
35 degrees
30 degrees
75 degrees
What is the function of a wallplate? You must select all the correct answers
To transfer the load directly to the foundation
To spread the weight of a rafter across the wall
To provide a secure connection to a birdsmouthed rafter
To prevent spreading of the roof structure
What is the name of the timber that connects from the ridge at the apex of the roof to the wallplate at the base of the roof?
Purlin
Ridgeboard
Wallplate
Rafter
Which of the following correctly describe the functions of a ceiling joist? Select TWO correct answers
Ties the rafters together to prevent spreading
Prevent deflection in the ceiling joists
Support the ceiling to the room below
Spread the load of the rafters
What might be the effect on the walls of a building where the roof structure that is not sufficiently strong?
The roof will sag
The external walls will deflect
The foundations will fail
Water will ingress through the cavity wall
What do we call the timber that is supported by the pine end walls, running perpendicular to the rafters?
Rafter
Tie
Joist
Purlin
What is the purpose of a Purlin? Choose TWO correct answers.
Supports the rafters, usually at the midpoint
Allows the use of smaller section timbers in a cut roof
Ensures the roof resists the spread of fire
Prevents moisture ingress into the roof space
What is the name of the board behind the gutter?
Barge board
Soffit board
Fascia board
Skirting board
If you look carefully at the image, you will see a vent in the soffit board. What is the purpose of this feature?
To let rain out of the roof space
To allow rain escaping from the gutter to escape from the soffit space
To provide ventilation to the roof space
To allow the carpenter to fix the soffit board in place.
What do we call this type of roof structure?
Trussed rafter roof
Cut roof
Flat roof
Monitor roof
What do we call this type of truss?
Girder truss
Fink truss
Attic truss
Monopitch truss
What type of roof does this property have?
Pitched roof
Flat roof
Northlight roof
Monopitch roof
When a flat roof has all the insulation placed above the roof joists, is it a cold roof or a warm roof?
Cold Roof
Warm Roof
What do we call the timbers that sit on a flat roof joist to provide the necessary fall for rainwater?
Furry
Firring
Sloped
Ceiling joist
This type of roof is known as a ...
Monitor roof
Northlight roof
Raised roof
Dual roof
This image shows a Northlight roof. What type of building usually has this structure?
A tall thin multi storey building
A commercial hotel
A narrow span industrial
A wide span single storey industrial building
What is a typical feature of a space frame? Select TWO answers
It is heavyweight and used for small spans
It is geometric in pattern
It is thin in relation to the building size
It is a lightweight structure that spans large areas
