Steel Roof Structure Terminology

A roof that is formed by sloping planes from all four sides.

Steel roof structure terminology.

Valley the internal angle formed by two inclined slopes of a roof. To ensure construction safety a construction monitoring scheme was. According to the project characteristics the construction scheme of the roof steel structure follows the principle of subareas and substeps with the truss lifting in segmentation. Beams columns braces plate trusses and fasteners.

The connecting area of a column and roof beam of a structural frame such as a rigid frame. 30 lb felt was the standard underlayment for quality metal roofing systems and is still used but has been replaced in many areas by the newer synthetic underlayments it is typically made of a polyester fleece and infused with tar. The roof steel structure in the terminal 2 building of yancheng nanyang airport has a large span and a considerably difficult construction. An l shaped metal strip positioned along a roof s edges to allow water to run off the roof without running down the eaves or siding.

Terminology applied to structural steel members the use of these members the methods by which they are connected and the basic sequence of events which occurs during erection. A power tool used to tighten nuts or bolts. Eaves on a sloped roof the horizontal underside that projects out from the house wall. Truss roof the prefabricated self supporting triangulated structural framework commonly used for all types of roofs.

Architectural roofing is metal roofing systems that are non weightload bearing and must be installed over solid decking rather than battens or purlins. It does not include for example cables. Structural steel having a yield stress in excess of 36 000 pounds per square inch. Structural steel the structural elements that make up the frame that are essential to supporting the design loads e g.

Glossary of steel terminology. Usually steel sections in the shape of i. Batten or purlins can be 1 x2 x4 wood strips nailed to the roof or rafters upon which the roofing is attached. A metal v shaped gutter is fixed in this area to direct water to the gutter.

In some instances they are also steel lengths measuring about an inch or so wide that have an elevated middle where one screws the metal roofing into. Sometimes called hat channel because of its shape. Steel sections angels channels w shapes etc which are formed by rolling mills while the steel is in a semi molten state. The vertical framing members located at the sides of an opening.

The line formed at the intersection of two adjacent sloping planes of a roof. The section has a web in the middle and two flanges.