Hope I explain this okay,
I want to build a small outhouse using exisiting corner brick wall and building basically wooden walls for the other side, capping it of with a flat roof. The size is 3200mm L x 2800mm W x 2200 H.
I am happy with the basic build, however I am a little confused on the flat roof.
Iam thinking of using 50 x 125 beams @ 400 gap sitting on a wall plate (50 x 100) and then put firings on top of the beams.
My question is, does the above sound okay, and if so what is the best way to fix a wall plate to wall and the beam to wall plate. Also what height should the firings be so the water will not stay in middle of the roof. Also should there be any over hang from the beams on top of the wall for venting?
Any help would be much appreciated.