Main Difference
The main difference between Awning and Roof is that the Awning is a secondary covering attached to the exterior wall of a building and Roof is a covering on the uppermost part of a building or vehicle
Awning
An awning or overhang is a secondary covering attached to the exterior wall of a building. It is typically composed of canvas woven of acrylic, cotton or polyester yarn, or vinyl laminated to polyester fabric that is stretched tightly over a light structure of aluminium, iron or steel, possibly wood or transparent material (used to cover solar thermal panels in the summer, but that must allow as much light as possible in the winter). The configuration of this structure is something of a truss, space frame or planar frame. Awnings are also often constructed of aluminium understucture with aluminium sheeting. These aluminium awnings are often used when a fabric awning is not a practical application where snow load as well as wind loads may be a factor.
The location of an awning on a building may be above a window, a door, or above the area along a sidewalk. With the addition of columns an awning becomes a canopy, which is able to extend further from a building, as in the case of an entrance to a hotel. Restaurants often use awnings broad enough to cover substantial outdoor area for outdoor dining, parties, or reception. In commercial buildings, an awning is often painted with information as to the name, business, and address, thus acting as a sign or billboard as well as providing shade, breaking strong winds, and protecting from rain or snow. In areas with wintry weather, most awnings do not have to be taken down at the end of the summer – they can remain retracted against the building all winter long, or be designed and built for those conditions.
Roof
A roof is the top covering of a building, including all materials and constructions necessary to support it on the walls of the building or on uprights; it provides protection against rain, snow, sunlight, extremes of temperature, and wind. A roof is part of the building envelope.
The characteristics of a roof are dependent upon the purpose of the building that it covers, the available roofing materials and the local traditions of construction and wider concepts of architectural design and practice and may also be governed by local or national legislation. In most countries a roof protects primarily against rain. A verandah may be roofed with material that protects against sunlight but admits the other elements. The roof of a garden conservatory protects plants from cold, wind, and rain, but admits light.
A roof may also provide additional living space, for example a roof garden.
Awning (noun)
A rooflike cover, usually of canvas, extended over or before any place as a shelter from the sun, rain, or wind.
Awning (noun)
That part of the poop deck which is continued forward beyond the bulkhead of the cabin.
Roof (noun)
The external covering at the top of a building
Roof (noun)
The upper part of a cavity.
“The palate is the roof of the mouth.”
“Archaeologists discovered that the cave’s roof was decked with paintings.”
Roof (noun)
The surface or bed of rock immediately overlying a bed of coal or a flat vein.
Roof (verb)
To cover or furnish with a roof.
Roof (verb)
To traverse buildings by walking or climbing across their roofs.
Roof (verb)
To put into prison for not a short time.
Roof (noun)
the structure forming the upper covering of a building or vehicle
“a car with a vinyl roof”
“a thatched roof”
“the rain woke him, hammering on the roof”
“roof timbers”
Roof (noun)
the top inner surface of a covered area or space; the ceiling
“the roof of the cave fell in”
Roof (noun)
used to signify a house or other building, especially in the context of hospitality or shelter
“helping those without a roof over their heads”
“they slept under the same roof”
“a range of childcare facilities all under one roof”
“while you live under my roof you’re not going to have a tattoo”
Roof (noun)
the upper limit or level of prices or wages
“starting salary £12,185, rising to a roof of £16,835”
Roof (verb)
cover with a roof
“the yard had been roughly roofed over with corrugated iron”
Roof (verb)
function as the roof of
“fan vaults roof these magnificent buildings”