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BC owner builder exam
Air Infiltration - The amount of air leaking in and out of a building through cracks in walls, windows and doors. air filters - Adhesive filters made of metals or fibres that are coated with adhesive liquid to which particles of lint and dust adhere Alligatoring - Pattern of cracks when paint or aged asphalt loses volatile oils and oxidized from solar radiation - results limited tolerance to thermal expansion or contraction Asphalt - Used on roofs and highways as a waterproofing agent Batt insulation - Strips of fiberglass or rock-wool insulation with various thicknesses that fit between studs or framing. May or may not have a paper covering. blister - Enclosed raised spot on the surface of a building cause by expansion of trapped air, water vapour, moisture or other gases BTU (British Thermal Unit) - The amount of energy needed to heat one pound of water one degree Fahrenheit Collar - In roofing, a conical metal cap flashing used in conjunction with vent pipes or stacks, for the purpose of shedding water away from the base of the vent.
Condensation - Caused when warm moist air comes into contact with a colder object What is a conductor in roofing? - A pipe to convey rainwater from the roof gutter to a drain or storm drain. What is the purpose of a conductor in roofing? - To channel rainwater from the roof gutter to a drain or storm drain. Electrical conductor - a wire through which a current of electricity flows Conduction - flow of heat from one part of a substance to another. Corrosion - the deterioration of a metal due to a chemical or electro-chemical reaction resulting from exposure to weathering, moisture, chemicals, or other agents or media Curb - a short wall or masonry built above the level of the roof that provides a means of flashing the deck equipment Damper - Valve for controlling air flows Dampproofing - An application of a water-resisting treatment or material to the surface of a concrete or masonry wall to prevent passage or absorption of water or moisture while still permitting moisture vapour to escape from the structure. Can also be accomplished by using an admixture in the concrete mix. dew point - The temperature at which vapour condenses from the atmosphere and forms water
What is step flashing? - Flashing application method used where a vertical surface meets a sloping roof plane. How is step flashing installed? - 6" X 6" galvanized metal bent at a 90 degree angle, installed beneath siding and over the top of shingles, with each piece overlapping the one beneath it. Thru-Wall Flashing - Flashing extended completely through a masonry wall to prevent water which may enter the wall from proceeding downward into wall or into roof decor roofing system Footings - Wide pours of cement reinforced with rebar (reinforcing bar) that support foundation walls, pillars and posts. Footings are part of the foundation and are typically poured before the foundation walls. gable - The end of a building as distinguished from the front or rear. Triangular end of exterior wall from level of eaves to the ridge of a double-sloped roof. Gaskets - Pre-formed shapes, such as strips, grommets, etc., of rubber or rubber-like composition used to fill and seal a joint or opening either alone or in conjunction with a supplemental application of a sealant. gauge - The thickness of sheet metal and wire, etc Glazing - Infill material such as glass, panels, etc. gutter strap - A metal band used to support the gutter. Header - a framing member crossing and supporting the ends of joists, studs, or rafters so as to transfer their weight to parallel joists, studs, or rafters
jamb - the foramen which a door or window sits joint - The space or opening between two more adjoining surfaces Joist - horizontal beams used to support floors or roofs Lap - to extend one material partially over the other Lintel - a horizontal support of timber, stone, concrete, or steel across the top of a door or window to support the walls immediately above the opening Membrane - sheet goods used for roofing repairs and applications Molding - Finish wood such as door or window trim overhang - A portion of a structure which projects beyond the vertical plain of exterior walls of building Paver stones - precast concrete slabs used to create traffic surface Polyurethane sealant - Organic compound formed by reaction of a glycol with an isocyanate Ponding - The collecting of water, as on a roof, into large puddles or a pond due to poor drainage and/or deflection of the roof deck Porosity - The percentage of the total volume of a rock or sediment that consists of open spaces.
Slab on grade foundation - A flat, poured concrete foundation that is just a few inches above the surface of the ground (footings needed, little or no foundation wall poured) Slope - Incline or pitch of a roof Soffit - The underside of a roof overhang. spalling concrete - The chipping or flaking of concrete, bricks, or other masonry where improper drainage or venting and freeze/thaw cycling exists Splitting - Formation of long cracks completely through a membrane. Often associated with lack of allowance for expansion stresses. can be a result of deck deflection of change in deck direction Stack - Vertical pipe of a system of soil, waste, or vent piping Thermal movement - The measured amount of dimensional change that a material exhibits as it is warmed or cooled. Tuck Pointing Mortar - Regrouting of defective mortar joints in a masonry or brick wall ultraviolet - Invisible rays of light at the violet end of the spectrum vapor retarder - Material used to retard the flow of water vapor through walls and other spaces where this vapor may condense at a lower temperature. vent pipe - A small vertical pipe installed through roof to provide circulation of air to and from any part of the drainage system.
Vent System - A pipe or pipes installed to provide a flow of air to or from a drainage system, or to provide a circulation of air within such system to protect trap seals from siphonage and backpressure. Weep hole - a small opening whose purpose is to permit drainage of water that accumulates inside a building component or assembly Wind Uplift - The upward force exerted by wind traveling across a roof.
