Specifications

www.aetsolar.com Open Loop / PV - Page 9
Figure 7. Lag Bolt Mounting
J-BOLT MOUNTING
J-bolt mounting is done very similar to lag screw mounting except instead of drilling into the center of a
rafter, a hole must be drilled directly beside a rafter. The size of the hole must be slightly larger than the
bolt diameter. This is more easily accomplished if the attic man would drill a pilot hole through the roof
along side the chosen rafter. Fit the bolt through the mounting brackets and insert the bolt (J side first)
through the hole in the roof. Work the J underneath the rafter. Pull the J-bolt snug against the rafter
before tightening the nut. Use double nuts or lock-washers to securely fasten the mounting bracket to the
J-bolt (Figure 8).
Figure 8. J-Bolt Mounting