Adding a vent rib? Posted by Tom Salzer on November 23, 2008, 9:58 am 71.184.250.143 Anyone know whether it's possible to convert a normal rib to a vent rib, who could do the work, and what it costs? Message Thread: Adding a vent rib? - Tom Salzer November 23, 2008, 9:58 am Re: Adding a vent rib? - revdocdrew November 23, 2008, 2:15 pm Re: Adding a vent rib? - Tom Salzer November 26, 2008, 9:52 pm Re: Adding a vent rib? - bill schodlatz November 23, 2008, 7:02 pm