A metal roof panel, typically a double standing seam or batten seam; usually requires solid decking underneath and relies on slope to shed water.
Tag: architecture
Architectural Shingle
An asphalt shingle that provides a dimensional appearance.
Area Divider
A raised, flashed assembly, typically a single- or double-wood member attached to a wood base plate, that is anchored to the roof deck. It is used to accommodate thermal stresses in a roof system where an expansion joint is not required, or to separate large roof areas or separate roof systems comprised of different/incompatible materials, and may be used to facilitate installation of tapered insulation.
Attic
The cavity or open space above the ceiling and immediately under the roof deck of a steep-sloped roof.
Bar Joist
See Steel Joist.
Barrel Vault
A building profile featuring a rounded profile to the roof on the short axis, but with no angle change on a cut along the long axis.
Batten
(1) cap or cover; (2) in a metal roof, a metal closure set over, or covering the joint between, adjacent metal panels; (3) in a wood roof, a strip of wood usually set in or over the structural deck, used to elevate and/or attach a primary roof covering such as tile; (4) in a single ply membrane roof system, a narrow plastic, wood or metal bar that is used to fasten or hold the roof membrane and/or base flashing in place.
Batten Seam
A metal panel profile attached to and formed around a beveled wood or metal batten.
Blocking
Sections of wood (which may be preservative treated) built into a roof assembly, usually attached above the deck and below the membrane or flashing, used to stiffen the deck around an opening, act as a stop for insulation, support a curb, or serve as a nailer for attachment of the membrane and/or flashing.
Bun Stock
Large solid box-like structure formed during the production of polystyrene insulation; individual board stock pieces are then cut from the bun.
C-Channel
A structural framing member.
Camber
A slight convexity, arching or curvature (as of a beam, roof deck or road).
Canopy
Any overhanging or projecting roof structure, typically over entrances or doors.
Cant
In SPF-based roofing, a beveling of foam at horizontal/vertical joints to increase strength and promote water run off.
Cant Strip
A beveled strip used under flashings to modify the angle at the point where the roofing or waterproofing membrane meets any vertical element.
Cavity Wall
An exterior wall usually of masonry, consisting of an outer and inner withe separated by a continuous air space, but connected together by wire or sheet-metal tiles.
Chimney
Stone, masonry, prefabricated metal or wood-framed structure, containing one or more flues, projecting through and above the roof.
Cladding
A material used as the exterior wall enclosure of a building.
Clerestory
An upward extension of enclosed space created by carrying a setback vertical, wall (typically glazed) up and through the roof slope. Two intersecting shed roofs on different planes.
Clipped Gable
A gable cutback near the peak in a hip-roof form.
Cold Roof
A roof assembly configured with the insulation below the deck, not typically in contact with the deck, allowing for a ventilation space. The temperature of the roof assembly remains close to the outside air temperature.
Column
In structures, a relatively long, slender structural compression member such as a post, pillar or strut; usually vertical which acts in (or near) the direction of its longitudinal axis
Combing Ridge
An installation of finishing slate or wood at the ridge of a roof whereby the slates on one side project beyond to the apex of the ridge.
Conductor Head
An enlargement or catch basin at the top of a downspout or leader to receive rainwater from a gutter or scupper.
Cornice
The decorative horizontal molding or projected roof overhang.
Counter Batten
Vertical wood strips installed on sloped roofs over which horizontal battens are secured. The primary roof covering is attached or secured to these horizontal battens.
Cupola
A relatively small roofed structure, generally set on the ridge or peak of a main roof area for ventilation or aesthetic purposes
Curb
(1) a raised member used to support roof penetrations, such as skylights, mechanical equipment, hatches, etc. above the level of the roof surface; (2) a raised roof perimeter relatively low in height.
Deck
A structural component of the roof of a building. The deck must be capable of safely supporting the design dead and live loads, including the weight of the roof systems, and the additional live loads required by the governing building codes and provide the substrate to which the roofing or waterproofing system is applied the structural surface of a building to which a roof assembly is installed. Decks are either non-combustible (e.g., corrugated metal, concrete, or gypsum) or combustible (e.g., wood plank or plywood).
Dimensional Shingle
A shingle that is textured, overlayed, or laminated and designed to produce a three-dimensional effect. (also see Laminated Shingle and Architectural Shingle.)
Dormer
A structure projecting from a sloping roof usually housing a window or ventilating louver.
Downspout
A vertical pipe or conduit used to carry runoff water from a scupper, conductor head or gutter of a building to a lower roof level or to the ground or storm water runoff system.
Drain
An outlet or other device used to collect and direct the flow of runoff water from a roof area.
Drip Edge
A metal flashing or other overhanging component with an outward projecting lower edge, intended to control the direction of dripping water and help protect underlying building components.
Eave
The lower edge of a sloping roof that part of a roof which projects beyond the wall.
Eave Height
The vertical dimension from finished grade to the eave.
Eave Trough
See Gutter
Eyebrow
A dormer, usually of small size, whose roof line over the upright face is typically an arched curve, turning into a reverse curve to meet the horizontal at either end. Also, a small shed roof projecting from the gable end of the larger, main roof area.
Fascia
(1) in steep-slope roofing, a board that is nailed to the ends of a roof rafter; sometimes supports a gutter; (2) in low-slope roofing, the vertical or steeply sloped roof or trim located at the perimeter of a building. Typically, it is a border for the low-slope roof system.
Flange
The projecting edge of a rigid or semi-rigid component, such as a metal edge flashing flange.
Gable
The vertical triangular portion of the end of a building having a double-sloping roof, from the level of the eaves to the ridge of the roof.
Gable Roof
A single-ridge roof that terminates at gable end(s).
Gambrel
A roof that has two pitches on each side, where the upper roof area has less slope than the lower roof areas.
Girt
A horizontal beam that supports wall cladding between columns.
Gutter
A channeled component installed along the downslope perimeter of a roof to convey runoff water from the roof to the drain leaders or downspouts.
Hip
The inclined external angle formed by the intersection of two sloping roof planes.
Hip Roof
A roof that rises by inclined planes to form one or more hips.
HVAC
Heating, ventilating, and air conditioning equipment.
Hydrostatic Pressure Relief System
A system of perimeter and/or under slab drains used to regulate the hydrostatic pressure in the earth surrounding a below-grade structure.
Insect Screen
Wire mesh used to prevent insects from entering the building through ventilators, louvers, or other openings.
Joist
Any of the small timbers, metal or wood beams arranged parallel to each other and spanning from wall to wall to support a floor, ceiling, or roof of a building.
Mansard
A decorative steep-sloped roof on the perimeter of a building.
Mansard Roof
A steeper roof that terminates into a flat roof at its high point.
Open Valley
A method of valley construction in which the steep-slope roofing on both sides are trimmed along each side of the valley, exposing the metal valley flashing.
Parapet Wall
The part of a perimeter wall that extends above the roof.
Rafter
One of a series of sloped structural members, that extend from the ridge or hip to the downslope perimeter or eave, designed to support the roof deck and its associated loads.
Ridge
Highest point on the roof, represented by a horizontal line where two roof areas intersect, running the length of the area.
Roof
(1) the cover of a building; (2) to cover with a roof.
Roof Curb
Raised frame used to mount mechanical units (such as air conditioning or exhaust fans), skylights, etc. on a roof.
Roof Overhang
A roof extension beyond the exterior wall of a building.
Screen Wall
A nonstructural wall erected around units or curbs on a roof. Typically the framing consists of girts with a wood or metal covering attached to the frame.
Scupper
Drainage device in the form of an outlet through a wall, parapet wall or raised roof edge lined with a soldered sheet metal sleeve.
Scuttle
A hatch that provides access to the roof from the interior of the building.
Siding
The finish covering of an exterior wall of a frame building; the siding may be a cladding material such as wood, aluminum or vinyl (but not masonry).
Sill
The bottom horizontal framing member of an opening, such as below a window or door.
Soffit
The exposed undersurface of any exterior overhanging section of a roof eave
Tuckpointing
The process of removing deteriorated mortar from an existing masonry joint and troweling new mortar or other filler into the joint.
Valley
The internal angle formed by the intersection of two sloping roof planes.