Roof Joist Connection Detail

R1 roof framing r2 joist and rafter detail r3 roof framing isometric view r4 heel joint connection detail r5 ridge member connection detail r6 ridge member with coped rafters r7 roof eave and soffit detail r8 rafter and joist bridging.

Roof joist connection detail.

Maximum 6 inches 152 mm between brace ceiling. Provide a lightweight low cost rigid floor assembly c joist components provide an economical lightweight alternative to open web trusses bar joists engineered lumber cast in place or hollow core floor assemblies. Minimum connection of brace to a roof rafter and ceiling joist with four no 10 screws at each end. Details for conventional wood frame construction.

However since there is some load transfer with these members the code requires a nominal 2 thickness and bracing to a load bearing partition at the upper end or to be designed as a beam with proper supports. Hand driven and pneumatic fasteners were included in the test program. If rafters will sit on top of a ledger attach them with seismic anchors as you would attach rafters to a beam. Individual connections and connections within full scale roof systems were tested to quantify potential system effects.

Steel bar joist roof direct bearing connection. Pocket connection a pocket connection consists of framing the floor or roof system into a void in the masonry wall. Drawings below are generic details to show design intent only. Joist hangers can hang rafters from a ledger but for sloping rafters notch them or use special rafter hangers.

American forest paper association wood construction data 1. The tables below contain downloadable standard design detail drawings for typical unistrut ceiling grid applications. Steel bar joist roof ledger connection. The first approach to achieving a strong durable struc.

Connection for roof rafters framed at angles. Metal framing connectors make the best connections. Nl8 non load bearing wall parallel to joist roofs rafters joists. A few currently available roof systems use concrete masonry while some rely on precast concrete joists or steel bar joists.

Performance of conventional roof systems and components including ceiling joist to rafter connections and roof framing to wall connections. Depending on loads and spans c joists are typically spaced at 12 16 19 2 or 24 on center spacing. However other materials may be used in conjunction with the concrete masonry. This detail is used when masonry continues above either as part of the wall or as a parapet the connection location and eccentricity is to be minimized.

The drawings will help you gain a better understanding of engineered ceiling grid design but they are not intended for construction purposes because.