I-joists require blocking at end supports to prevent joist rollover. Short pieces of I-joist work well and provide good shear blocking for diaphragm designs (top). Where a ventilation channel is needed,use metal cross-bracing (second from top), dimension lumber (third from top), or notched engineered rim joist material (bottom). |
|
Though a beveled plate requires special fabrication, it has some advantages over cutting a birdsmouth. Headers at openings may require double joists, depending on the loads. Use filler blocks between the I-joists and a backer block to support the hanger.
More from Journal of Light Construction
-
-
Emanuel Silva: The Case for Small Jobs
4 MIN READ
-
The Dangers of Poly Vapor Retarders
6 MIN READ