Roof Members And Their Dimensions

Retaining walls of 4 feet 1 2 m or less in height level backfill.

Roof members and their dimensions.

Wire fences and other fences not over 6 feet 1 8 m in height. For example a steel roof will typically cost less than an aluminum roof. Rafters are inclined members spaced from 16 to 48 inches apart. 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. They vary in size depending on their length and spacing. Their main purpose is to support the joists and allow for shorter joists to be installed. Platforms walks and driveways.

Pitched roof construction. The tops of the inclined. Canopies or awnings extending not more than 54 inches 1 4 m from the exterior wall of the building. 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.

There are two basic methods of pitched roof construction. The characteristics of a roof are dependent upon the purpose of the building that it covers the available roofing. This is especially true with shingle roofs both metal and asphalt. They do for the roof what the joists do for the floor and what the studs do for the wall.

Dimensions matter as do the total amount of feet. With the diagram above applying pythagoras theorem x 2 rafter length 4 5 2 3 5 2. A purlin is a horizontal piece of timber or metal which supports the roof s rafters or decking and helps to prevent your roof from sagging. In roof area used as storage sheds playhouses and similar uses.

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.