Bowstring truss
Lightweight truss design noted by the bow shape, or curve, of the top chord
Cast-in-place concrete
Common type of concrete construction. Refers to concrete that is poured into forms as a liquid and assumes the shape of the form in the position and location it will be used
Cockloft
Concealed space between the top floor and the roof of a structure
Dead load
weight of the structure, structural members, building components, and any other features permanently attached to the building that are constant and immobile
Eave
The edge of a pitched roof that overhangs an outside wall. attic vents in typical eves provide an avenue for an exterior fire to enter the attic
Factory-built home
Structure that is partially or completely built in a factory and shipped to the location on which it is to be installed
Fire door
Specially constructed, tested, and approved fire-rated door assembly designed and installed to prevent fire spread by automatically closing and covering a doorway in a fire wall to block the spread of fire through door opening.
Fire-resistance rating
Rating assigned to a material or assembly after standardized testing by an independent testing organization; identifies the amount of time a material or assembly will resist a typical fire, as measured on a standard time-temp curve
Fire-stop
Solid materials such as wood blocks, used to prevent or limit the vertical and horizontal spread of fire and the products of combustion in hollow walls or floors, above false ceilings, in penetrations for plumbing or electrical installations, in penetrations of a fire-rated assembly, or in cocklofts and crawl spaces
Fire-wall
fire-rated wall with a specific degree of fire resistance, built of fire-resistive materials and usually extending from the foundation up to and through the roof of a building; designed to limit the spread of a fire within a structure or between adjacent structures
Glue-laminated beam
Wooden structural member composed of many relatively short pieces of lumber glued and laminated together under pressure to form a long, strong beam
Gusset plate
Metal or wooden plates used to connect and strengthen the joints of two or more separate components into a load-bearing unit
Hybrid modular structure
Structure consisting of the elements of both modular design and panelized construction.
Load-bearing wall
wall of a building that by design carries at least some part of the structural load of the building in the direction of the ground or base
Manufactured home
four major components: the chassis and the floor, wall, and roof systems. basically the frame construction
means of egress
Continuous and unobstructed way of exit travel from any point in a structure to a public way, consisting of the tree distinct parts: exit access, exit and exit discharge
Modular home
Structure assembled at the factory in two or more sections. connected when the pieces are delivered on site
Oriented strand board(OSB)
A wooden structural panel formed by gluing and compressing wood strands together under pressure.
Panelized home
Home assembled on site consisting of construction panels made of foam insulation sandwiched between sheets of plywood. Assembled on site
Parallel chord truss
A truss constructed with the top and bottom chords parallel. these are used as floor joists in multistory buildings and as ceiling joists in buildings with flat roofs
Parapet
Portion of the exterior walls of a building that extends above the roof. A low wall at the edge of a roof
Photovoltaic roof
Roof that features a solar panel array that is designed to provide electricity to the structure.
Photovoltaic (PV) system
an arrangement of components that convey electrical power to an energy system by converting solar energy into direct current (DC) electricity
Protected stair
fire-rated enclosure construction; intended to protect occupants as they make their way through through
Purlin
Horizontal member between trusses that support the roof
Ridge
Horizontal line at the junction of the top edges of two sloping roof surfaces
Type 1 construction
Construction type in which structural members, including walls, columns, beams, floors, and roofs, are made of noncombustible or limited combustible materials and have a specified degree of fire resistance.
Type 2 construction
Construction type that is similar type 1, but the fire resistance is lower
Type 3 construction
Exterior walls and structural members are made of noncombustible or limited combustible materials, but interior structural members, including walls, columns, beams, floor and roofs are completely or partially constructed of wood.
Type 4 construction
Heavy timber construction in which interior and exterior walls and their associated structural members are made of noncombustible or limited combustible material; interior structural framing consists of heavy timber with minimum dimensions larger than those used in type 3.
type 5 construction
exterior walls, bearing walls, floors, roofs, and supports are made completely or partially of wood or other approved materials of smaller dimensions than those used in type 4