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This was used for the creation of portales or covered porches. An umbral or lintel was added for support of the viga along with vertical posts in these spaces. [12] The porch's roof treatment was the same as in the interior room, but the space provided was used for different purposes.
Domestic roof construction is the framing and roof covering which is found on most detached houses in cold and temperate climates. [1] Such roofs are built with mostly timber , take a number of different shapes , and are covered with a variety of materials .
Butterfly roof (V-roof, [8] London roof [9]): A V-shaped roof resembling an open book. A kink separates the roof into two parts running towards each other at an obtuse angle. Karahafu: A type of gable found in some traditional Japanese buildings. Hidden roof: A type of Japanese roof construction.
A rain porch is a type of porch with the roof and columns extended past the deck and reaching the ground. The roof may extend several feet past the porch creating a covered patio. A rain porch, also referred to as a Carolina porch, is usually found in the Southeastern United States. [6]
A mansard roof on the Château de Dampierre, by Jules Hardouin-Mansart, great-nephew of François Mansart. A mansard or mansard roof (also called French roof or curb roof) is a multi-sided gambrel-style hip roof characterised by two slopes on each of its sides, with the lower slope at a steeper angle than the upper, and often punctured by dormer windows.
A lanai may also be a covered exterior passageway. [8] Disney animator Dorse Lanpher (1935–2011) notes in his memoirs the large covered lanais on the ocean side of his Honolulu hospital. [ 9 ] Today, air-conditioned buildings such as hotels often offer "enclosed" rather than "open" lanais, sometimes meaning a large dining hall with a 'wall ...
In steel construction, the term purlin typically refers to roof framing members that span parallel to the building eave, [5] and support the roof decking or sheeting. The purlins are in turn supported by rafters or walls. Purlins are most commonly used in Steel Framed Building Systems, where Z-shapes are utilized in a manner that allows ...
The roof underlayment is used to prevent accidental penetration of rainwater or powdery snow, to prevent convective exchanges with thermal insulation, and to control the migration of water vapor. [1] It is an element of the building's thermal performance. [2] The roof underlayment is placed between the frame and the roof support.