BC OWNER BUILDER EXAM 186 2026 EXAM
SCRIPT TEST PAPER QUESTIONS AND
SOLUTIONS GRADED A+
◉ Which best describes the design principle of rain water
deflection?
Answer: Design and construction that prevents water from ever
entering
◉ What is the required light certification?
Answer: CSA Authorized
◉ What grit of sandpaper would get smoothest result
Answer: 600
◉ What is the maximum rise in a flight of stairs?
Answer: 3.7m
◉ What is the minimum distance that a ladder must extend above a
parapet wall or landing?
Answer: 3ft
,◉ What heights are end dams on window /door flashings?
Answer: 25mm/1inch
◉ When do you request an inspection?
Answer: Once work is complete
◉ How do you increase inspection efficiency?
Answer: Group Inspections as closely together as possible
◉ When is an HRV (Heat Recovery Ventilator) required?
Answer: Almost always
◉ Which of the following is not allowed under the HPO owner-
builder program?
Answer: New dwelling unit attached to building less than 10 years
old
◉ Who issues permits for a gas fireplace?
Answer: Technical Safety BC
◉ Maximum electrical permit for an owner builder?
,Answer: 200 amp
◉ What is the best practice to apply asphalt waterproofing on a
foundation?
Answer: Spray-on or roll on dry foundation with 2inch (max) below
grade
◉ What do you need when applying a peel/stick waterproof
membrane foundation?
Answer: Apply an approved primer prior to installation
◉ The distance from a gas vent to the roof must be?
Answer: Greater than the overhang of the roof
◉ How high does a construction fence around a site need to be?
Answer: 6ft
◉ When do you need to install a handrail or wear fall protection?
Answer: 10 ft. above grade
◉ When installing the footer, it was dug down 2 inches deeper then
what the elevation should be. What needs to happen?
, Answer: 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 it?
Answer: 6in
◉ What would cause a blister on a flat roof?
Answer: Moisture trapped under the roof
◉ Water is backing up in a skylight what do you do to fix it?
Answer: Clear drainage
◉ What needs to be done first when starting to install asphalt
shingles on a roof?
Answer: Install eve protection
◉ What kind of fastener can you use in a wood that had been treated
with chromated copper arsenate (pressure treated)?
Answer: Lumber manufacturer approved fastener
◉ When should there be insulation under a basement slab?
Answer: When there is heating or above frost line
SCRIPT TEST PAPER QUESTIONS AND
SOLUTIONS GRADED A+
◉ Which best describes the design principle of rain water
deflection?
Answer: Design and construction that prevents water from ever
entering
◉ What is the required light certification?
Answer: CSA Authorized
◉ What grit of sandpaper would get smoothest result
Answer: 600
◉ What is the maximum rise in a flight of stairs?
Answer: 3.7m
◉ What is the minimum distance that a ladder must extend above a
parapet wall or landing?
Answer: 3ft
,◉ What heights are end dams on window /door flashings?
Answer: 25mm/1inch
◉ When do you request an inspection?
Answer: Once work is complete
◉ How do you increase inspection efficiency?
Answer: Group Inspections as closely together as possible
◉ When is an HRV (Heat Recovery Ventilator) required?
Answer: Almost always
◉ Which of the following is not allowed under the HPO owner-
builder program?
Answer: New dwelling unit attached to building less than 10 years
old
◉ Who issues permits for a gas fireplace?
Answer: Technical Safety BC
◉ Maximum electrical permit for an owner builder?
,Answer: 200 amp
◉ What is the best practice to apply asphalt waterproofing on a
foundation?
Answer: Spray-on or roll on dry foundation with 2inch (max) below
grade
◉ What do you need when applying a peel/stick waterproof
membrane foundation?
Answer: Apply an approved primer prior to installation
◉ The distance from a gas vent to the roof must be?
Answer: Greater than the overhang of the roof
◉ How high does a construction fence around a site need to be?
Answer: 6ft
◉ When do you need to install a handrail or wear fall protection?
Answer: 10 ft. above grade
◉ When installing the footer, it was dug down 2 inches deeper then
what the elevation should be. What needs to happen?
, Answer: 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 it?
Answer: 6in
◉ What would cause a blister on a flat roof?
Answer: Moisture trapped under the roof
◉ Water is backing up in a skylight what do you do to fix it?
Answer: Clear drainage
◉ What needs to be done first when starting to install asphalt
shingles on a roof?
Answer: Install eve protection
◉ What kind of fastener can you use in a wood that had been treated
with chromated copper arsenate (pressure treated)?
Answer: Lumber manufacturer approved fastener
◉ When should there be insulation under a basement slab?
Answer: When there is heating or above frost line
