Roof structures

How many roof types are there?

• 4

• 3

• 6

• 2

What is a wallplate used for?

• used to fix the roof after construction.

• used to support brickwork.

• used to keep walls stable.

• used to help building breathe.

Modern roof structures are quick to erect and usually made off site?

• True

• False

flat roofs usually have a pitch of no more than

• 10 degrees

• 25 degrees

• 12 degrees

• 15 degrees

Straps: these come in various shape and sizes, and are used to secure floor joists, roof trusses etc.

• True

• False

What is the purpose of a soffit?

• this is used to cover the void between the brickwork and where the eaves hang over the structure.

• to help secure the roof to the brickwork

• this is used to cover the gap along the ridge of the roof

what is the purpose of flashing?

• to divert water away from a roof and stop water penetrating through spaces where roofs join a solid

• to stop water penetrating through the wall plate

• to fix the soffit

What is the purpose of a purlin? (pick 2)

• to support the roof

• to secure the gable walls

• to help with weight distribution

• to fix roof straps too.

define a 'hipped roof'

• is any that has sloping roof surfaces instead of upright gable sections

• any roof with less than a 10 degree pitch

• a roof that uses slate and not tiles