HERE WE HAVE FINISHED THE "PONY WALLS " AND NAILED DOWN THE
TWO BY FOUR JOISTS. YOU HAVE SEVERAL CHOICES HERE. YOU CAN INSTALL THE JOISTS AT TWENTY FOUR INCHES ON CENTER, AND USE
5/8 INCH PLYWOOD SHEATHING, OR 1/2 SHEATHING AND
METAL SUPPORT CLIPS BETWEEN THE JOISTS.
OR, YOU CAN INSTALL THE JOISTS AT SIXTEEN INCHES ON CENTER, AND USE 1/2 INCH SHEATHING, AS WE DID IN THE PHOTO ABOVE.
THE IDEA IS TO KEEP THE FLEX OF THE PLYWOOD TO A MINIMUM SO THAT WHEN THE ROOF IS FINISHED A PERSON WALKING ON THE ROOF WILL NOT FRACTURE THE ROOF MEMBRANE DUE TO MOVEMENT UNDERFOOT.
REMEBER THAT FRISBEE YOU TOSSED ON THE ROOF ?
LEAVE IT.
I'LL HAVE MORE ON ROOFS WHEN WE GET TO THAT STAGE.
I BET YOU CAN HARDLY WAIT !
