Industrial Structural Terms Illustrated Roof Deck

The same roof has a 4 12 or 1 3 pitch.

Industrial structural terms illustrated roof deck.

The engineered wood association the apa. There are many types of roof trusses as wall as many types of roofs more types than there are parts. Its main function is to provide structural support for the roof system and therefore is a building element that needs to be designed by a licensed design professional because proper support of the roofing above is critical to the roof system s success. The engineered wood association is a trade organization that develops product standards installation standards and does certification testing of engineered wood products such as plywood and osb.

Instead type a steel roof decks are often used in repair and re roof. The roof truss structure and design is integral to roof structural integrity and shape. A roof s slope is the number of inches it rises for every 12 inches of horizontal run a roof with a 4 in 12 slope rises 4 inches for every 12 inches of horizontal run. This article and series of illustrated diagrams shows you all the parts of a basic roof truss king truss and queen truss.

Type a steel roof deck is rarely used for new construction projects. The roof deck is the backbone and an integral component of all roofing systems. While reflective single ply roof membranes and high thermal roof insulations seem to have captured current interest in low slope roofing they are just two of many items to be considered in a roofing system. The terms pitch and slope are simply two different ways of expressing the same measurement.

Type a roof deck is a 1 deep structural steel roof deck that supports various types of roofing materials.