Worksheets020402a Advanced Roof Framing
Total questions: 20
Worksheet time: 15mins
If the major and minor ridges intersect and the major and minor roofs have different spans, what will change in the roof slope ratios?
unit rise is constant, unit run varies
unit run is constant, unit rise varies
line length is the same but unit rise varies
unit rise and unit runs are reversed
An unequal slope gable roof has one slope at 1:3 and the other at 1:2. The ridge would be located at?
1/8 of the width of the building
1/6 of the width of the building
2/5 of the width of the building
1/4 of the width of the building
An unequal slope gable roof has one slope at 2:3 and the other at 1:2. The ridge would be located at?
1/8 of the width of the building
1/6 of the width of the building
2/5 of the width of the building
3/7 of the width of the building
What is the longest piece of baseboard moulding that can fit diagonally (without bending) into an elevator that measures 6' by 7'
on the floor and by 8' high? Answer in the lesser whole foot dimension.
10 feet
12 feet
14 feet
16 feet
What is the best way to determine how much shortening is needed on valley rafters on intersecting unequal slope roofs?
shorten half the diagonal thickness of the major ridge
shorten half the diagonal thickness of the minor ridge
measure the shortening on a full or accurately scaled plan view
shorten the full diagonal thickness of the valley rafter
When constructing an intersecting unequal slope roof if you want to make both the fascia height and overhang dimension
consistent at the roof intersection you will need to?
Raise the wall height of the steep slope roof
Raise the wall height of the least sloped roof
Lower the wall height of the steep slope roof
Lower the wall height of the steep slope roof
What is the best way to determine how to make the cheek cuts on valley rafters on intersecting unequal slope roofs?
measure half the diagonal thickness of the major ridge
measure the cheek cuts on a full size plan view
measure half the diagonal thickness of the valley rafter
measure the full diagonal thickness of the valley rafter
On an intersecting un-equal slope roof the run of a valley rafter is?
only 45 degrees to the plate line
not 45 degrees to the plate line
only 90 degrees to the plate line
When valley jack rafters join the valley on an intersecting unequal slope roof, how is the shortening determined?
measure half the diagonal thickness of the valley
measure the full diagonal thickness of the valley
measure half the diagonal thickness of the jack
measure the shortening on a full size plan layout
If the overhang is to be a uniform width and at the same elevation on all sides of an unequal slope roof, what must be done on the
shorter span roof to achieve this?
eliminate plumb and level cuts at the birdsmouth
furring down the soffit to meet the major soffit line
raise the entire roof to accommodate the soffit
raise the plate line to accommodate the soffit
When must a rafter on each side of a dormer opening need to be doubled?
always
when opening is greater than two rafter spaces
when opening is greater than 800 mm
when opening is greater than 1200 mm
What can provide light, ventilation, and greater floor space, in an attic?
a stub roof
a flat roof
a mansard roof
a dormer
What is the name of the typical steep roof with 6 or 8 sides?
dormers
mansard
turret or gazebo
oriel
What is another name for a Jerkinhead roof?
stub gable
dutch hip
mansard
gambrel
What is the name of the sloped wall roof that provides usable attic space?
gampole
mansard
dutch hip
stub gable
What is the name of this type of framing?
Fascia framing
Eyebrow framing
Jerkinhead framing
Dutch hip framing
How is the wood above plate determined when laying out the birdsmouth for a valley rafter that is not at 45 degrees to the ridge?
Use the wood above plate from the common rafter.
Use the wood above plate from the hip rafter.
From the full scale layout that is done in plan view.
What is the main characteristic of an equal span, equal slope intersecting roof?
The minor roof ridge will be the same elevation as the major roof ridge.
The minor roof ridge will be higher than the major roof ridge.
The minor roof ridge will be lower than the major roof ridge.
The minor roof will be in the centre of the major roof.
What is the first step when calculating the position of the ridge in an unequal sloped roof with a steep slope of 12/12 and a low slope of 2/5?
Find a common unit run.
Find a common unit rise.
A2+B2+C2=D2
Find the Slope Gain Factor of the low sloped roof.
Where is the working line for a valley rafter of an unequal sloped intersecting roof with an overhang (when the ridges are at the same height)?
Inside corner where the major and minor ridges intersect to the outside corner of the building.
Intersection of the major and minor ridge working lines to the outside corner of the building.
Inside corner where the major and minor ridges intersect to the outside face of the fascia.
Intersection of the major and minor ridge working lines to the outside face of the fascia.
