BC Owner Builder Exam 2023 Questions and Answers
100% Verified
Order of inspections
1: forms, basement and crawlspace
2: Plumbing, dampproofing, foundation drainage , sanitary sewer, storm sewer, sump,
water service
3: plumbing, electrical, mechanical, gas
4: framing inspection
5: insulation and vapour barrier
6: rainscreen/exterior finishs, drywall
7: building envelop inspection
8: final inspection
Which is not an acceptable method for determining the correct grading for a
trench?
An experienced excavator says it's ok
At what depth is shoring required?
1.2m/4ft
Which best describes the principle of rain waterterm-0 deflection?
Design and construction that prevents water from ever entering
What lighting safety certifications are required in Canada?
CSA safety certification
What grit of sandpaper would get the smoothest result?
Higher grit with get a smoother finish
What is the maximum rise in a flight of stairs?
The vertical height of any flight of stairs should not exceed 3.7m
What is the minimum distance that a ladder must extend above a parapet wall or
landing?
3ft
What heights are end dams to be on windows and door flashings?
25mm/1 inch
End dam use
Stop water from coming in
When should you call for inspectors to make them efficient as possible?
Group inspectors together when possible and call when work is complete
When is an HRV required?
Almost always
What can you build under the owner-builder HPO process?
Single detached home under a single title. Single dwelling attached to pre-existing
building older than 10 years. Single dwelling attached to a new non-residential building.
Who issues permits for a gas fireplace?
Safety Authority (call Technical Safe BC)
Can an owner builder take out their own electrical permit?
Yes, up to 200A
What is the best way to apply asphalt waterproofing on a foundation?
, Spray-on or roll on dry foundation with 2in. below grade
When is the appropriate time to backfill a foundation?
After damp-proofing
What do you need to do when applying a peel and stick waterproof membrane
foundation?
Use an approved primer before installing
What are gas meter installation requirements?
The distance from the gas vent to the roof must be greater than the overhang of the
roof, nothing can be with in 1m either side or 4.5m above a gas meter
When do you need to install a handrail or have fall protection?
10ft, 4ft if no fall protection
How high does a construction fence around a site need to be?
6ft
When installing the footer, it was dug down 2in. deeper than what the elevation
should be. What needs to happen?
Install the footing form at proper elevation and fill with extra concrete
When installing flashing for a roof valley how much do the asphalt shingles need
to overlap?
6in.
What would cause a blister on a flat roof?
Moisture trapped under roof
Water is backing up in a skylight, what do you do to fix it?
Clear drainage
What needs to be done first when starting to install asphalt shingles on a roof?
Install eve protection
What kind of fastener can you use in a wood that has been treated with
chromated copper arsenate?
Lumber manufacturer approved fastener
When should there be insulation under a basement slab?
When there is in floor heating
How deep should the control joint be in a concrete slab?
1/4 of the slab
What kind of insulation should be installed under slab?
XPS
What kind of insulation has the least moisture permeability?
XPS
When framing a header of a staircase where does the framer get the nailing
pattern?
Use the BC code section 9 nailing pattern
What document must the owner submit to WorkSafe BC prior to starting
construction?
Notice of project
What is the nailing/screw pattern for backer board?
Manufacturer approved pattern
When installing a bi-fold door the door bings at the side jamb on the top. What
can be done to fix this?
100% Verified
Order of inspections
1: forms, basement and crawlspace
2: Plumbing, dampproofing, foundation drainage , sanitary sewer, storm sewer, sump,
water service
3: plumbing, electrical, mechanical, gas
4: framing inspection
5: insulation and vapour barrier
6: rainscreen/exterior finishs, drywall
7: building envelop inspection
8: final inspection
Which is not an acceptable method for determining the correct grading for a
trench?
An experienced excavator says it's ok
At what depth is shoring required?
1.2m/4ft
Which best describes the principle of rain waterterm-0 deflection?
Design and construction that prevents water from ever entering
What lighting safety certifications are required in Canada?
CSA safety certification
What grit of sandpaper would get the smoothest result?
Higher grit with get a smoother finish
What is the maximum rise in a flight of stairs?
The vertical height of any flight of stairs should not exceed 3.7m
What is the minimum distance that a ladder must extend above a parapet wall or
landing?
3ft
What heights are end dams to be on windows and door flashings?
25mm/1 inch
End dam use
Stop water from coming in
When should you call for inspectors to make them efficient as possible?
Group inspectors together when possible and call when work is complete
When is an HRV required?
Almost always
What can you build under the owner-builder HPO process?
Single detached home under a single title. Single dwelling attached to pre-existing
building older than 10 years. Single dwelling attached to a new non-residential building.
Who issues permits for a gas fireplace?
Safety Authority (call Technical Safe BC)
Can an owner builder take out their own electrical permit?
Yes, up to 200A
What is the best way to apply asphalt waterproofing on a foundation?
, Spray-on or roll on dry foundation with 2in. below grade
When is the appropriate time to backfill a foundation?
After damp-proofing
What do you need to do when applying a peel and stick waterproof membrane
foundation?
Use an approved primer before installing
What are gas meter installation requirements?
The distance from the gas vent to the roof must be greater than the overhang of the
roof, nothing can be with in 1m either side or 4.5m above a gas meter
When do you need to install a handrail or have fall protection?
10ft, 4ft if no fall protection
How high does a construction fence around a site need to be?
6ft
When installing the footer, it was dug down 2in. deeper than what the elevation
should be. What needs to happen?
Install the footing form at proper elevation and fill with extra concrete
When installing flashing for a roof valley how much do the asphalt shingles need
to overlap?
6in.
What would cause a blister on a flat roof?
Moisture trapped under roof
Water is backing up in a skylight, what do you do to fix it?
Clear drainage
What needs to be done first when starting to install asphalt shingles on a roof?
Install eve protection
What kind of fastener can you use in a wood that has been treated with
chromated copper arsenate?
Lumber manufacturer approved fastener
When should there be insulation under a basement slab?
When there is in floor heating
How deep should the control joint be in a concrete slab?
1/4 of the slab
What kind of insulation should be installed under slab?
XPS
What kind of insulation has the least moisture permeability?
XPS
When framing a header of a staircase where does the framer get the nailing
pattern?
Use the BC code section 9 nailing pattern
What document must the owner submit to WorkSafe BC prior to starting
construction?
Notice of project
What is the nailing/screw pattern for backer board?
Manufacturer approved pattern
When installing a bi-fold door the door bings at the side jamb on the top. What
can be done to fix this?
