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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)
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? ¼ 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
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 What is the appropriate location for a water heater? A water heater should be located close to the greatest area of hot water usage and should not be placed where water lines could freeze What is the regulation for insulation between the main home and garage? The house must have insulation and vapour barrier as though the garage were exterior space. Air barrier and insulation is required for any wall or ceiling that is between the garage and living space. When should you call for electrical inspections?
Before wiring is concealed or connected to a supply. What must you do if you fail and electrical inspection? Fix the problem and call for re-inspection. When do you need a chimney saddle? When the upper side width of the chimney is 750mm or more. What must you do before starting to build? Notify WorkSafe BC at least 24 hours in advance How high must a ladder protrude above a 4’ trench? 3’ Why keep a worksite free of debris? To protect inspectors and provide a safe and efficient work space What shows hidden objects in blueprints? Dashed lines What square is best to use to transfer and 35 degree slope from plans to work? A sliding T-bevel How much support is needed for floor joists into footing?
- Min for floor joists. For beams 3.5”
Refer to manufacturers or engineer’s instructions Who is responsible to ensure that the electrical contractor is performing work safely on the site? Owner builder When NOT to install vapour barrier If insulation wet How to measure wood moisture Moisture meter Which of the following is not a characteristic of house wrap? Is vapour proof Min gap for rain screen 10mm When strapping vertical siding? Put vertical straps on wall with horizontal on second What is best practice eaves trough hanger spacing? 3 feet/36 inches Why is the dam used on window flashing? To hinder water flow behind siding etc.
What to do if window top is 16” down from a 24” overhang? Install header flashing Worst underlayment for bathroom tile floor? ¼” particle board Best type of flashing to use? Will last the lifetime of the surrounding materials Hood fans for ranges should be based on? The air exhaust volume, intake air volume needed, and clearance restrictions Height of railings above 2’ up? 36” if interior or 42” if exterior; >=36” exterior up to 5’11’; Above 6’ it’s >=42” Stair rise max 200mm Sheathing should be Staggered If subfloor joints are faulty Add blocking Distance between external in and out vents? (HRV)
Some high efficiency windows have a gas injected between the panes. What is the gas? Argon Storage of materials that are hazardous, are combustible, corrosive, toxic etc. should be safely stored. Where can they be stored In their approved containers inside a locked room What is used to prevent mitre joints from opening? Biscuits and silicone What is the best way to make an expansion joint without plastic strip or tooling? Sawing Where a roof structure requires ventilation, where can a vent for air flow NOT be placed? Fascia The owner-builder’s brother in law is a licensed builder. What are the restrictions regarding his involvement? Can’t be general contractor What barrier must be placed between concrete form and base plate? Sill gasket What is the primary reason to use a pre-manufactured cap shingle? Better wind resistance
When roof trusses turn up, how do you know what order they go? Chart/pictogram is delivered with them which shows where they go (and they are also individually labelled) Most heat loss is thru Windows Having a big range hood, might cause problems with pressurization, heating…? Depressurization (negative pressure) Best kind of paint for kitchen Water based What would you do if your plumbing inspection failed? Stop work, fix mistakes, call inspection again What documents are required from WCB when hiring a sub-contractor? Clearance letters How do you dry concrete if there is a sudden drop in temperature? Or to help concrete cure Cover with tarp What are the requirements for a hand rail? Must be continuous on one side and ended in a way that won’t impede usage
What is the “live load” capacity on a floor? 2.4 kPa Balconies, decks, and other platforms must be designed to carry? 1.9 kPa; Attic load is 0.35 kPa
What is required for an interior access attic door? Weather Stripping and Insulation What must you remember when framing in a direct vent gas fireplace? Leave clearance between the unit and the framing What must a principle of a farm corporation do to receive an HPO permit? Must file special resolution not to sell interest in land for one year Which of the following best describes a chimney flue? A flue is a duct, pipe, or opening in a chimney for conveying exhaust gases from a fireplace, furnace, water heater, boiler, or generator to the outdoors What is the best practice for framing a foundation? Square corners first and brace How should you store propane cylinders on a job site? Upright and secured What is the most appropriate bridging / blocking for a non-engineered floor?
Cross-bridging at 7’ OC max How do you properly install rigid insulation in a cavity wall? Directly against the concrete When are sprinklers required in a SFD? Only required if local bylaws require them Minimum horizontal overlap for building paper? 100mm or 4” How do you square up a wall when framing? Measure diagonals Which two materials most affect the strength of concrete? Cement and water When do you call for a framing inspection? When the framing is complete, and HVAC and plumbing are roughed in When can you apply for an occupancy permit? Upon substantial completion If you omit the edge covering for a concrete tile roof, what will happen? Edge of tiles no longer protected against corrosion Which of the following best describes the third law of thermodynamics?
Why is ICF or insulated concrete form used? Better R-value Best way to make a duct energy efficient Tape Joints and insulate Why shouldn’t both concrete and wood be used together when framing? They expand and contract differently What is true of metal roofing material? Lasts 40 years How must roofing be installed around a mortar chimney Install roofing material and step flashing alternately How many years on leased land to get accepted for owner builder authorization? 15 years What slope of a roof can clay cladding go on? 1:2, 50% slope What is not a proper roofing material? Bitumen membrane After building your second house how long do you have to wait to build your third house?
First house 18 months, second house 3 years, everything after 5 years. Reflective insulation is designed for which? Radiant heat Which of the following is a critical step to ensure proper curing of concrete? Place a layer of dry burlap on the freshly poured concrete and spray it with water What’s a pellet furnace Burns compressed wood or biomass for heat/ Requires an auger system from hopper. What statement is false about pellet stoves Can operate without electrical or battery power When do you do a foot inspection? After footings are framed and steel installed but before concrete When is it the best to use sanded grout? Gaps larger than ¼” What is the best way to attached drywall with screws? Screws should be slightly imbedded in drywall without tearing paper When is the best to back fill? Back-fill after inspections and after floor is installed to stabilize foundation
