The Vancouver Building Bylaw sets out technical provisions for the design and construction of new buildings in Vancouver. [top]

A type of coupler that allows for almost any dimension and angle that may be required for the installation. Used when the standard 90° or 45° couplers won't be capable of joining the two frames. (Standard couplers only come in 4 1/2" variety.) [top]

A window or door unit that opens and operates. [top]

Generic term for polyvinyl chloride or PVC, an extruded material used for window and door framing. [top]

A fraction of the visible spectrum of sunlight (380 to 720 nanometers), weighted by the sensitivity of the human eye, that is transmitted through a window's, door's, or skylight's glazing. A product with a higher VT transmits more visible light. VT is expressed as a number between 0 and 1. [top]