Parallel Chord Truss Flat Roof

The offset scissor truss has a bottom chord that is flat for a distance and then is vaulted up and back down.

Parallel chord truss flat roof.

Flat truss a truss which has the top chord parallel to the bottom chord over the entire length of the truss. Top chord bearing flat roof. These steel joints are needed to support the overall truss. The more complex the truss framework is the greater quantity of these joints will be required.

Bonnet roofing systems are basically a mansard roof backwards. The parallel chord or flat truss gets its name from having parallel top and bottom chords. Some common trusses are named according to their web configuration such as the king post fan fink or howe truss. Common with 12 energy heel.

72 5 0 mi ni m u m girder floor truss floor truss jacks a a bearing wall girder floor truss floor truss jacks bearing wall cantilevered floor truss two 2x rim joists 24 max. Roof trays with parapitt. And parallel to floor truss span strongback lateral supports 24 max. The partial scissor truss is similar except that the bottom chord slopes up in one direction and then straight down while the remaining portion is flat.

A truss consists of one or more triangles in its construction. Most economical when the difference in slope between the top and bottom chords is at least 3 12 or the bottom chord pitch is no more than half the top chord pitch. Mono vault top chord bearing. Roof floor truss manual 7 31 08 10 43 am page 12.

It is most often used for roof construction. Parallel chord trusses allow for greater interior clearance in buildings. All truss designs are optimized to provide the most economical configuration for the specific application. Likewise referred to as kicked eaves a hood roof has 4 sides with a high top incline as well as a much more mild reduced incline offering cover around the sides of your home for a veranda.

The same thing is true for the bridge of the truss. Flat the most economical flat truss for a roof is provided when the depth of the truss in inches is approximately equal to 7 of the span in inches. Parallel chord roof truss design hood roof.