If the wall plates are all square/of equal lengths then the hipped rafters would form a pyramid shape like the picture above (normally a roof is rectangle and there are more yellow common rafters). Hip rafters are the diagonal rafters that span from the ridge at the top down to the corners of the roof. I'll show more detailed pictures of each section as we go, but above is a basic picture of a hip rafter roof from above. If you know how, it's possible to cut all or most of the roof members safely on the deck before taking them up and installing them all together. I'll start at the beginning with the easy bits before tackling the more complicated stuff and that way hopefully I'll make it really clear and easy to understand exactly how to set out, measure, cut and install hip and valley roof rafters. Sometimes a thin board of wood is provided at the eves to cover the end of the common rafters.Hipped roof construction can seem quite complicated to grasp at first but i'm going to break it down and explain each area in detail. _ are the pieces of timber which extends from the eves to the ridge.Ĭlarification: The lower edges of a roof which are resting up on or projecting beyond the supporting walls are known as the Eaves. They connect the ends of the ridge, Purlins and wall plates.ġ0. _ are the strips of wood which are fixed on the rafter or ceiling.Ĭlarification: Barge boards are the wooden planks or boards which are fixed on the gable ends of a roof. The triangular upper part of a wall formed at the end of pitched roof is known as a _Ĭlarification: Whereas, Cleats are small blocks of wood that are fixed on the trusses to prevent the sliding of purlins.ĩ. The wooden piece which are placed horizontally on the principal rafter to carry the common rafter are known as _Ĭlarification: Whereas, the inclination of sides of a roof to the horizontal plane is known as the Pitch and it can be expressed either in terms of degrees or as the ratio of rise to span.Ĩ. Whereas, hip rafter are the rafters which are provided at the junction of two roof slopes.ħ. Any rafter which is shorter than a common rafter is known as a _Ĭlarification: Common rafters are the intermediate drafters that give support to the roof covering. A template maybe of wood or stone or RCC.Ħ. This block is known as a template and it helps in spreading the load over a large area. The Framework, usually of triangles and design to support the roof covering for ceiling over rooms is known as a _Ĭlarification: A bedding block is generally provided at the end of a Truss. The actually connect the walls to the roof.ĥ. A wooden piece provided at the Ridge line of a sloping roof is known as the _Ĭlarification: Wall plates are the long wooden member which are embedded on the top of wall to receive the common rafters. This diagonal piece is known as a Dragon Beam or a dragon Tie or angle Tie.Ĥ. _ are the inclined members of a Truss.Ĭlarification: The lower and upper hip rafter is generally supported on a diagonal piece of wood that is laid across the corner of the wall. When two roof surface meet together and form an internal angle, a _ is formed.Ĭlarification: Whereas, the inclination of sides of a roof to the horizontal plane is known as the Pitch and it can be expressed either in terms of degrees or as a ratio of rise to span.ģ. and the roof covering maybe AC sheets, GI sheets, etc.Ģ. The structural element maybe trusses, portals, slabs, domes, etc. A _ is defined at the upper most part of the building which is constructed in the form of a framework to give protection to the building against rain, heat, snow, wind, etc.Ĭlarification: A roof basically consists of structural element provided at the top of building from the support of roof coverings. Construction and Building Materials Multiple Choice Questions & Answers (MCQs) on “Roofs”.ġ.
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