(NEWEST) OWNER BUILDER TEST QUESTIONS AND ALL
ANSWERS VERIFIED (2026-2027)
How deep does shoring need to be? ANSWER 1.2 m/4 ft
Which approach to figuring out a trench's proper grading is unacceptable?
ANSWER It's okay, according to an expert excavator.
Which best sums up the deflection principle of rainwater? ANSWER
Construction and design that keeps water out at all times
Which certifications are necessary for lighting safety in Canada? ANSWER
CSA accreditation for safety
Which sandpaper grit would produce the smoothest finish? ANSWER A
smoother finish can be achieved with higher grit.
How high can one go up a set of stairs? ANSWER Any stairway's vertical
height shouldn't be more than 3.7 meters.
How far above a parapet wall or landing does a ladder have to go at minimum?
ANSWER Three feet
How high should end dams be on door flashings and windows? - REPLY 25
mm/1 inch
When should inspectors be called in order to maximize their efficiency?
ANSWER: When feasible, group inspectors together and contact once the job is
finished.
At what point is an HRV necessary? ANSWER Nearly invariably
Under the owner-builder HPO method, what can be built? ANSWER One
detached house with one title. A single-family home that is connected to an
existing structure that is more than ten years old. A new non-residential building
with a single residence attached.
, Who grants gas fireplace permits? Technical Safe BC, also known as the
ANSWER Safety Authority
Is it possible for an owner-builder to obtain their own electrical permit?
ANSWER Indeed, up to 200A
How should asphalt waterproofing be applied to a foundation? ANSWER: Roll
or spray on a dry base that is two inches below grade.
What time of day is best to backfill a foundation? ANSWER Following damp-
proofing
How should a peel-and-stick waterproof membrane foundation be applied?
ANSWER Prior to installation, use an authorized primer.
What are the prerequisites for installing a gas meter? ANSWER Nothing can be
within 1 m on either side of or 4.5 m above a gas meter; the distance between
the gas vent and the roof must be greater than the roof's overhang.
When is it necessary to have fall protection or install a handrail? ANSWER 10
feet, or 4 feet in the absence of fall protection
What is the minimum height required for a construction fence surrounding a
site? ANSWER: 6 feet
The footer was dug down two inches deeper than it should have been when it
was installed. What must take place? ANSWER Fill with additional concrete
after installing the footing form at the appropriate elevation.
How much spread between asphalt shingles is required when flashing a roof
valley? ANSWER 6 inches.
Why would a flat roof develop blisters? ANSWER Trapped moisture beneath
the roof
What should be done if water backs up in a skylight? ANSWER Drainage that
is clear
When beginning to put asphalt shingles on a roof, what must be done first?
ANSWER Put in place eve protection.
ANSWERS VERIFIED (2026-2027)
How deep does shoring need to be? ANSWER 1.2 m/4 ft
Which approach to figuring out a trench's proper grading is unacceptable?
ANSWER It's okay, according to an expert excavator.
Which best sums up the deflection principle of rainwater? ANSWER
Construction and design that keeps water out at all times
Which certifications are necessary for lighting safety in Canada? ANSWER
CSA accreditation for safety
Which sandpaper grit would produce the smoothest finish? ANSWER A
smoother finish can be achieved with higher grit.
How high can one go up a set of stairs? ANSWER Any stairway's vertical
height shouldn't be more than 3.7 meters.
How far above a parapet wall or landing does a ladder have to go at minimum?
ANSWER Three feet
How high should end dams be on door flashings and windows? - REPLY 25
mm/1 inch
When should inspectors be called in order to maximize their efficiency?
ANSWER: When feasible, group inspectors together and contact once the job is
finished.
At what point is an HRV necessary? ANSWER Nearly invariably
Under the owner-builder HPO method, what can be built? ANSWER One
detached house with one title. A single-family home that is connected to an
existing structure that is more than ten years old. A new non-residential building
with a single residence attached.
, Who grants gas fireplace permits? Technical Safe BC, also known as the
ANSWER Safety Authority
Is it possible for an owner-builder to obtain their own electrical permit?
ANSWER Indeed, up to 200A
How should asphalt waterproofing be applied to a foundation? ANSWER: Roll
or spray on a dry base that is two inches below grade.
What time of day is best to backfill a foundation? ANSWER Following damp-
proofing
How should a peel-and-stick waterproof membrane foundation be applied?
ANSWER Prior to installation, use an authorized primer.
What are the prerequisites for installing a gas meter? ANSWER Nothing can be
within 1 m on either side of or 4.5 m above a gas meter; the distance between
the gas vent and the roof must be greater than the roof's overhang.
When is it necessary to have fall protection or install a handrail? ANSWER 10
feet, or 4 feet in the absence of fall protection
What is the minimum height required for a construction fence surrounding a
site? ANSWER: 6 feet
The footer was dug down two inches deeper than it should have been when it
was installed. What must take place? ANSWER Fill with additional concrete
after installing the footing form at the appropriate elevation.
How much spread between asphalt shingles is required when flashing a roof
valley? ANSWER 6 inches.
Why would a flat roof develop blisters? ANSWER Trapped moisture beneath
the roof
What should be done if water backs up in a skylight? ANSWER Drainage that
is clear
When beginning to put asphalt shingles on a roof, what must be done first?
ANSWER Put in place eve protection.
