BC OWNER BUILDER EXAM SCRIPT QUESTIONS AND
SOLUTIONS MARKED A+
✔✔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? - ✔✔Adjust the top pivot point
, ✔✔What should be done when joist and beams have contact with bare concrete walls?
- ✔✔Use pressure treated wood and leave 12mm air space
✔✔What is the minimum depth for a beam support? - ✔✔Not less than 89mm
✔✔When is a footing required? - ✔✔Under walls, pilasters, columns, piers, fireplaces
and chimneys that bear on soil or rock
✔✔When is a footing inspection conducted? - ✔✔When the forms and steel reinforcing
are complete, but prior to placing any concrete
✔✔What is the moisture permeability of 6mm poly? - ✔✔0.03 US perm or 1.7 ng
✔✔When can WorkSafe BC come to your construction site? - ✔✔Anytime
✔✔What is the maximum moisture percentage you can have in framing lumber? -
✔✔19%
✔✔What is your liability for you subcontractor on your site? - ✔✔You must abide by the
Workers Compensation Act and obtain a clearance letter from each contractor to ensure
they are in good standing with WorkSafe BC
✔✔Where is diverting flashing used? - ✔✔At the end of an intersection between a roof
and a wall to direct water away from the vertical wall
✔✔What is the best way to build a water tight wall? - ✔✔With the use of a rain screen
✔✔When can you sell an owner built home? - ✔✔After the first year of occupancy, or
with special permission from the HPO
✔✔Can you transfer your owner built home to a family member in the first year? -
✔✔No
✔✔If you are building a room 12' by 9' and you draw a diagonal line between 2 corners
how long would the line be? - ✔✔15'
✔✔How far above the chimney can the flue liner protrude? - ✔✔A minimum of 50mm
✔✔What is the correct chimney clearance? - ✔✔2' above the highest point within 10'
✔✔What are the ventilation fan requirements? - ✔✔One exhaust fan in every kitchen
and every bathroom and an additional principle ventilation exhaust fan for the whole
dwelling
SOLUTIONS MARKED A+
✔✔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? - ✔✔Adjust the top pivot point
, ✔✔What should be done when joist and beams have contact with bare concrete walls?
- ✔✔Use pressure treated wood and leave 12mm air space
✔✔What is the minimum depth for a beam support? - ✔✔Not less than 89mm
✔✔When is a footing required? - ✔✔Under walls, pilasters, columns, piers, fireplaces
and chimneys that bear on soil or rock
✔✔When is a footing inspection conducted? - ✔✔When the forms and steel reinforcing
are complete, but prior to placing any concrete
✔✔What is the moisture permeability of 6mm poly? - ✔✔0.03 US perm or 1.7 ng
✔✔When can WorkSafe BC come to your construction site? - ✔✔Anytime
✔✔What is the maximum moisture percentage you can have in framing lumber? -
✔✔19%
✔✔What is your liability for you subcontractor on your site? - ✔✔You must abide by the
Workers Compensation Act and obtain a clearance letter from each contractor to ensure
they are in good standing with WorkSafe BC
✔✔Where is diverting flashing used? - ✔✔At the end of an intersection between a roof
and a wall to direct water away from the vertical wall
✔✔What is the best way to build a water tight wall? - ✔✔With the use of a rain screen
✔✔When can you sell an owner built home? - ✔✔After the first year of occupancy, or
with special permission from the HPO
✔✔Can you transfer your owner built home to a family member in the first year? -
✔✔No
✔✔If you are building a room 12' by 9' and you draw a diagonal line between 2 corners
how long would the line be? - ✔✔15'
✔✔How far above the chimney can the flue liner protrude? - ✔✔A minimum of 50mm
✔✔What is the correct chimney clearance? - ✔✔2' above the highest point within 10'
✔✔What are the ventilation fan requirements? - ✔✔One exhaust fan in every kitchen
and every bathroom and an additional principle ventilation exhaust fan for the whole
dwelling
