I am building an attached garage to replace an attached carport. The existing carport had a flat roof. The new garage will tie into the house's roof with the same slope, 3:12. Although the house has a hip roof, the roof over the garage will be a gable roof. The garage is approx. 25' x 31'. The ceiling joist will run perpendicular to the rafters . The 25' span of the ceiling joist requires either 2 x 10's or 2 x 12, depending on whats available at the lumber yard. With the shallow slope of the roof, the first joist will be approx. 4' from the parallel exterior wall. I plan on adding joists perpendicular to the ceiling joists to the exterior wall. I will use joist hangers for the connection at the ceiling joist. My question: Is a 4' perpendicular joist too long? I assume I will need to add blocking to attach the sheetrock. Will the above pass an inspection (IRC 2003)? I will be adding stongbacks at 4' o.c. since the ceiling joists run perpendicular to the rafters.
- posted
16 years ago