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WorksheetsLevel 3 Complex Roofs knowledge check
Total questions: 15
Worksheet time: 8mins
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
There is gap found when trimming around a roof light, this is too
allow for flashing
Minimise fire risk
Minimise water ingress
Allow for adjustment when fitting
Doubling up of rafters is most commonly found
Where flashing is used
Directly above a loft hatch opening
Either side of a formed opening
Where heavy tiles need supporting
In addition to studs, breathable membrane and vapour barrier, what is required to construct a dormer window cheek?
Insulation
Balusters
Wall ties
Trimmed joists
What components make up closed eaves detail?
Soffit
Verge
Barge board
Apron lining
When fixing the fascia board, what method is used to ensure ends of the rafters are in line?
String line and spirit level
Straight edge and spirit level
Straight edge and plumb bob
String line and plumb bob
