Industrial Structural Terms Illustrated Roof Deck

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

Industrial structural terms illustrated roof deck.

The roof truss structure and design is integral to roof structural integrity and shape. Roofing nails and staples driven into decks at an angle not perpendicular to the roof deck surface. The roof deck is the backbone and an integral component of all roofing systems. This article and series of illustrated diagrams shows you all the parts of a basic roof truss king truss and queen truss.

There are many types of roof trusses as wall as many types of roofs more types than there are parts. Type a steel roof deck is rarely used for new construction projects. And it all starts with the roof deck. This specific type of roof deck is best used in conjunction with thinner rigid insulation.

Instead type a steel roof decks are often used in repair and re roof. 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. The terms pitch and slope are simply two different ways of expressing the same measurement. 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.

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.