Solid Laminated Roof Diaphragm

Nlt nail laminated timber is a mass timber panel system which can be used for floor wall and roof structures.

Solid laminated roof diaphragm.

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. 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. Asce 7 american society of civil engineers.

Or thicker or laminated decking. Minimum design loads for. Design and detailing of plywood floor and roof diaphragms. A custom steel sculpted universal connector at the top of the glulam support columns was developed to accommodate the constantly varying roof geometry.

A shear wall however is a vertical cantilevered diaphragm. Goodfellow also offers solid wood decking species in red pine red cedar spruce and larch. Decking is also available in laminated wood. The entire solid non glazed area of the exterior walls has plywood sheathing but only a.

A diaphragm is a flat structural unit acting like a deep thin beam. 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. The ibc icc 2003a and the af pa 2005 permit wood structural panel diaphragm sheathing to be fastened over solid lumber planking or laminated decking using full tabulated values for new construction. Just wondering if anyone has used this decking to act as the roof diaphragm.

Does anyone have experience using tongue and groove decking for roof sheathing. Construction adhesives for field gluing plywood to wood framing must meet minimum performance standards specified in astm d 3498 10. Irc table r803 1 lists 1 1 2 t g for rafter spans up to 72. 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.

Tall wood buildings like t3 minneapolis have used nlt as floor and roof panels atop glulam beams. Nail laminated timber nlt. The term diaphragm is usually applied to roofs and floors.