Solid Laminated Roof Diaphragm

Or thicker or laminated decking.

Solid laminated roof diaphragm.

This project features a free form solid laminated wood roof site fabricated with 2 x 6 lumber in six foot wide panels and supported by 93 milled glulam columns and a two way cable truss system. Irc table r803 1 lists 1 1 2 t g for rafter spans up to 72. Design and detailing of plywood floor and roof diaphragms. The roof diaphragm functions as a horizontal medium through which lateral forces are collected and redistributed to each participating vertical element wood frame shear walls.

Goodfellow also offers solid wood decking species in red pine red cedar spruce and larch. Does anyone have experience using tongue and groove decking for roof sheathing. Application of elastomeric adhesives to the tongue and groove joints between solid or laminated timber decking can greatly increase the strength and stiffness of roof diaphragms 35 72. Nail laminated timber nlt.

Nlt nail laminated timber is a mass timber panel system which can be used for floor wall and roof structures. Construction adhesives for field gluing plywood to wood framing must meet minimum performance standards specified in astm d 3498 10. Just wondering if anyone has used this decking to act as the roof diaphragm. Asce 7 american society of civil engineers.

I am looking to space rafters at 72 however i cannot find any information on diaphragm strength of the t g decking. Minimum design loads for. These construction systems can be used when designing a building for lateral loads such as those generated by wind or earthquakes. It is designed of two to five strips of kiln dried wood glued with an exterior waterproof adhesive to form a glulam roof decking.

Decking is also available in laminated wood. Buildings that have primary wood frames with no lateral rigidity columns simply supported at top and bottom depend entirely on the diaphragm shear wall system for. The term diaphragm is usually applied to roofs and floors. Inherent is the assumption that the sheathing nail will have a penetration of not less than 10 diameters.

Tall wood buildings like t3 minneapolis have used nlt as floor and roof panels atop glulam beams. A shear wall however is a vertical cantilevered diaphragm. The entire solid non glazed area of the exterior walls has plywood sheathing but only a.