Construction; Roof and Intermediate Floors Essay

Construction; Roof and Intermediate Floors - Essay Example The roof covering may be metal sheets, wooden shingles, tiles, slates or slab itself. In this type of roof, steel bars and concrete are used to form a roof. Before construction, the thickness of slab, beam and reinforcement needs to be determined based on the span and loading conditions. This type of roof best suits the construction of the intermediate floor. The balance and strength needed for the support of an entire floor is made easy with this flat roof. Since the roof in question has a wide span it cannot be constructed with rafters alone. The roof has to be constructed with a structure comprising of frames known as trusses. The following illustration shows the general structure of such a roof. Houses of now are a lot better insulated because they have doors, windows and roofs which fit tightly and keep the temperature controllable. The air inside the house is kept warm by means of various techniques of circulating the air. A distinction is made on the type of roof based on the temperature it can keep. When the air inside the house remains warm it is known as a hot roof and vice versa. A hot roof allows for the air cavities to freeze and refreeze the snow or ice and in the process taking on the heat. The circulation of air into and out of the building must be moderated by an appropriate structural design. To assure this the construction has been fitted with â€Å"Quilt roof insulation between the† Joists. The housing structure is equipped with 75x50 wall plate with 30x2.5x600c/c girth galvanized m/s wall anchors nailed to block walls @1000 c/c (between windows) with 150 deep strip of XPM filled over plate as plaster key. Heavy horizontal beams or steel lintels are pressed 225mm deep to support the structure and roof. To accommodate for adequate insulation 75 thick c/s screed topping is placed on a 12mm polystyrene slab. (Simon Ã…  ilih, Miroslav Premrov and Stojan Kravanja, Faculty of Civil