This type comprises two lengths of rafters leaning against each other and tied where they meet at the top and it is the simplest form of the pitched roof. By struts, joists are commonly supported which stop rafters from sagging. To form level ceilings joists are fitted and to give more height these could be raised. To a wall plate, the rafter feet are nailed and across the supporting wall, it distributes the load evenly. To form extensions, slopes from one side, this type is commonly used and at the top of a wall, a series of rafters are fixed to plates. There are the following types of pitched roof such as To support the roofing materials such as tiles, sheets, etc battens are thin strips of wood that are fixed on the common rafters or on the top of ceiling boards. Wooden rafters are used in typical home construction while steel rafters are used for large industrial or commercial sheds. To support the purlin, multiple rafters are used side by side with equal spacing. ![]() Rafter is a pitched roof structural component and it starts from roof support like column or wall to hip or ridge. Fascia and Rafter:Īt eaves, fascia is a wooden board fixed to the feet of the common rafter and the ends of the lower-most roof covering material. Ridge & Purlins:Īt the apex of the two rising roof surfaces, the horizontal intersection inclined in opposite directions is called a ridge.įrom wood or steel purlins are made and to support common rafter of a roof when the span is large these are laid on principal rafters on wall-to-wall. To prevent moisture from entering the wall and roof through joints in parapet wall, copings, and other penetrations through the roof plane, flashings are provided.īetween two intersecting roof slopes, the outer angle formed by the inclined ridge that is more than 180 degrees is known as hip. Eaves also give protection from the sunlight.Īt the end of a ridge roof, the triangular upper part of the wall is called gable. The lower portion of the inclined roof which is projecting beyond the outer face of the wall in the roof is called eaves and the main function of eaves is to rainwater to flow on the exterior wall from the roof directly. There are following major parts of the pitched roof as given below To ensure maximum protection they remain the most common and efficient solution in wet and cold weather and gives the more classical appearance. ![]() ![]() With a ridge at its highest point, It is a bi-fold, bi-planer roof and a pitched roof requires a pitch of more than 10 degrees or a roof with two slopes that meet at a central ridge to be more specific.
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