definition
strict definition
roof covering
The substance and layout of the material used to cover the upper surface of a building.
The roof covering is the material and format used on the outer, sky-facing layer of a building's roof. It may be structural in itself, but is usually applied over the roof framework. Roof coverings normally have greater value when they are waterproof, windproof, durable, light, strong, insulating, and non-toxic.
The covering occupies the outward, sky-facing roof surface. It can carry structural loads itself or be supported by a separate framework.
Roof frame material describes the supporting construction beneath the covering. Roof form describes shape, which can remain the same when the covering material changes.
More specific definitions
25 sub-definitions-
aluminum sheeting
A roof covering formed from large sheets or slats of aluminum, commonly interlocked along their edges. -
asbestos sheeting
A roof covering of large asbestos-containing sheets, typically asbestos cement and often corrugated. -
asbestos shingles
A roof covering of small overlapping asbestos-containing shingles, typically made from asbestos cement. -
asphalt sheeting
A roof covering of large continuous membrane sheets coated on one or both sides with asphalt or tar. -
asphalt shingles
A roof covering of small overlapping asphalt-coated units, commonly reinforced with fiberglass or organic felt. -
brick
A roof covering with an outer layer of small fired masonry blocks, usually joined by mortar. -
ceramic tiles
A roof covering of baked clay or similar ceramic tiles, usually overlapping or interlocking on a sloping roof. -
concrete slab
A roof covering with a continuous, exposed concrete surface formed from precast or cast-in-place concrete. -
concrete tiles
Roofing made from tile or shingles of concrete, often reinforced with fiberglass. -
copper sheeting
A roof covering of large copper sheets or slats joined together, excluding small overlapping copper shingles. -
fabric
A roof covering formed from suspended cloth or a similar flexible, tent-like sheet material. -
fiberglass sheeting
A roof covering of rigid plastic sheets or panels reinforced with glass fibers, often formed with corrugations. -
glass
Roofing made of glass, either as an opaque coating or in the form of an extended skylight. -
iron sheeting
A roof covering of large iron sheets or slats joined together, excluding small overlapping iron shingles. -
metal shingles
A roof covering of small, overlapping rolled-metal plates arranged in successive courses. -
slate
A roof covering made from pieces of natural slate split into thin sheets, usually laid in overlapping courses. -
sod
A roof covering of living grass rooted in soil, including lawns over underground buildings. -
steel sheeting
A roof covering of large steel sheets or slats joined together, often corrugated or shaped to resemble tiles. -
stone slab
A roof covering of natural stone in large slabs or masses, excluding small stone tiles and shingles. -
synthetic membrane
A roof covering formed from sheets of plastic, rubber, or similar synthetic material joined into a watertight layer. -
tar
A roof surface coated with tar, directly or on a fabric or felt carrier, with any underlying wood fully obscured. -
tar and gravel
A roof covering with gravel or small stones laid over a tar layer, commonly used on flat roofs. -
thatch
A roof covering formed from thick overlapping mats of cut grasses or other plant stalks. -
wood planks
A roof covering of wooden boards fitted together, normally in parallel, with possible overlap at their joints. -
wood shingles
A roof covering of small wooden plates laid in overlapping courses, generally on a sloping roof.
Related definitions
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architectural style
A classification of a structure's appearance in terms of design vocabulary and historical period. -
elevator type
The mechanical classification of vertical transport systems by the type of lift mechanism. -
entrance approach
The basic form in which a pedestrian main entrance of a building is reached from outside. -
facade color
Colors covering at least ten percent of a structure's facade, excluding windows and allowing distinct or combined patterns. -
facade material
The primary material(s) of a structure's exterior surface, except for windows. -
facade system
The arrangement of exterior cladding over at least ten percent of the facade, excluding thin surface coatings such as paint. -
feature
Special properties or facilities directly associated with a built object, including amenities and physical characteristics. -
flooring material
The substance and form applied to the floors throughout a structure or a module. -
foundation system
The type of structure which gives structural support to a building beneath its lowest floor or ground base. -
frame material
Materials forming a structure's load-bearing skeleton, distinct from finishes, removable partitions, and foundations. -
framing system
The principal structural framework resisting gravity and lateral loads above ground, distinct from the foundation system. -
heating type
The energy source and, where applicable, delivery system used to heat a building's main occupied areas. -
insulation material
Forms and substances used as thermal insulators in building walls, roofs, and facades. -
insulation position
The position of thermal insulation materials with respect to the structural perimeter walls or framework of a building. -
level
The position and form of an entity acting as a company within a corporate organization or partnership. -
lighting system
The basic format of electrical structure or appliance used to illuminate the interior of a building. -
perimeter form
The outline shape of a horizontal cross section at the majority of a building's floor levels. -
qualitative indicators
Predefined or subjective measurements of various qualitative aspects of properties. -
roof form
The prevailing shape of a building's roof or top section, using the most prominent form where several occur. -
roof frame material
The material forming the structural framework that supports the outer covering of a building's roof. -
secondary facade material
Material used for the non-display side(s) of a structure, or used in less than 10% of its facade area. -
staircase material
The framing material which supports the steps and risers in an object's stairways. -
stairway configuration
The general path of a stairway, describing the directions of individual flights and the connections between flights. -
storage type
The basic arrangement of facilities for storing large quantities of items, commodities, or materials. -
tenancy design
The intended arrangement of a building's space for one or more tenants, including private and shared occupancy provisions. -
window frame material
The material forming the frames that hold a structure's windows in place or allow them to move. -
window type
The type used for a majority of a building's windows, indicating whether and how they open, and how they are divided.