Roof Members And Their Dimensions

Wire fences and other fences not over 6 feet 1 8 m in height.

Roof members and their dimensions.

Pitched roof construction. In roof area used as storage sheds playhouses and similar uses. With the diagram above applying pythagoras theorem x 2 rafter length 4 5 2 3 5 2. They do for the roof what the joists do for the floor and what the studs do for the wall.

For example a steel roof will typically cost less than an aluminum roof. The characteristics of a roof are dependent upon the purpose of the building that it covers the available roofing. Canopies or awnings extending not more than 54 inches 1 4 m from the exterior wall of the building. Dimensions matter as do the total amount of feet.

They vary in size depending on their length and spacing. Platforms walks and driveways. The members making up the main body of the framework of all roofs are called rafters. A hip rafter extends from the wall plate to the ridge in the angle of a hip 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 providing protection against rain snow sunlight extremes of temperature and wind. Rafters are inclined members spaced from 16 to 48 inches apart. Their main purpose is to support the joists and allow for shorter joists to be installed. There are two basic methods of pitched roof construction.

A cut roof this is the traditional method of cutting the timber on site and building up the roof using rafters ridge boards joists and purlins etc the exact details being determined by the size of roof size of timbers etc. Retaining walls of 4 feet 1 2 m or less in height level backfill. Often you can get discounts for using certain types of metal or asphalt so always make sure that you check out these options when running all the numbers. A roof is part of the building envelope.

For rafter check the height of roof and the breadth of plan to determine the rafter which is the falling portion of the roof except is already given from the section lets take the height of the roof as 3 5m and the breadth of plan plus overhang is 9m.