Roof Trusses On Cmu Wall

Wood roof truss or rafter direct bearing connection.

Roof trusses on cmu wall. Figure 4 shows a typical roof truss anchor cast into the bond beam of a concrete masonry bearing wall. For wood design chapters 5 6 and 7 use asd. In this article richard reynolds who helped write the new code language outlines the steps involved. Saved by consensus realty solutions inc.

New florida codes compel contractors to upgrade the roof wall connections on qualifying older homes when replacing the roof covering. Enjoy the videos and music you love upload original content and share it all with friends family and the world on youtube. The trusses or rafters are then connected to this plate. Roof truss design roof trusses roof plan concrete wall architecture details beams it cast construction attic ideas.

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How to inspect the connections that tie existing rafters or trusses to the wall plate to determine whether retrofitting is needed. A ledger is a horizontal board that is attached to the top of the the wall. Walls that are constructed of concrete block that need to be covered with a roof will require the use of a ledger. People also love these ideas.

The span in short is the length of the bottom of the truss. In older houses with masonry walls it is common to find a 2x8 lumber plate that is bolted or strapped flat like a plate to the top of the masonry wall. Some spans have a lower rate per foot than others. Concrete design and the asd method for masonry design.

Roof and wall sheathing gravity and wind loads floor diaphragms and shear walls in plane lateral overturninand g loads 6 notes. Connecting wood roof trusses to concrete masonry walls by using direct bearing connections. In older homes the connection may be made using 2 or 6 16d nails in a toe nail configuration. The ledger is needed to properly attach the perpendicular roof trusses to the top of the structure.

This is the distance of the bottom chord of the truss from outside overhang of bearing wall to outside of the other bearing wall. Cmu wall to engineered roof truss. The required anchor load capacity depends on the design wind speed as well as the roof truss span.