Hello everyone!

I am just completing my enclosure and battling the clock, as the temperature is hovering just above zero this time of year. I am new to this and had a quick question: I am building a flat roof which will have flagstone on top as a finish. I am acquainted with enclosure venting with a gabled roof, but what would be the best way to vent the enclosure so that moisture can escape if I have a flat roof? I am planning on enclosing the duravent chimney with a stud frame and cement board and stone veneer, with a flagstone cap on top of the chimney. Can I use this as a vent as well? Or should I install other types of vents in the walls? If so, what would be best? Thanks for any suggestions! Much appreciated!

Dan