Roof Members Details

Commercial roofing specs and details find the resources you need to design the best roofing system for your project.

Roof members details.

Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley. A horizontal timber or metal resting at the peak of the roof the rafters and trusses are connected to the ridge board for a cohesive framework. Closed in which the bottom chord is horizontal and at the foot of the truss and open in. Roof trusses provide support for the roof deck the framing and counteract wind load.

Whether you re in the design phase or on the roof we can provide the tools and support to get the project done right. Figure 2 5 view b shows you how the framing square is used to determine the length of the hypotenuse of a right triangle with the other sides each 12 inches. Roof trusses are generally fabricated offsite reducing price and speeding up the construction of your roof frame. A composite decking made of solid materials it resembles real wood and particularly strong and stable for bearing heavy load.

A valley rafter extends diagonally at a 45 angle from the inside corner of two intersecting wall plates up to the ridge of the roof. The top members of a truss are known generically as the top chord bottom members as the bottom chord and the interior members as webs in historic carpentry the top chords are often called rafters and the bottom chord is often referred to as a tie beam there are two main types of timber roof trusses. Determining the length of a roof rafter a brace or any other member that forms the hypotenuse of an actual or imaginary right triangle.