I am having trouble drawing a roof with a full rear dormer on a cape style home. I draw the 2nd floor plan using "plates" in the front and rear. The roof references the plates which is fine and the roof pitch is 12/12 to allow for 2nd floor rooms. In the the front I am placing 2 dogshed dormers which is all good. My issue is with the rear full dormer. From the rear, the home looks like a full 2-story home -- 8' wall in the rear. I just can't get the roof to look right to accomodate the rear full dormer. When I move the reference point to the rear wall (I have a rear wall AND a plate together) the center of the roof shifts off center. I need to have the center of the roof in the CENTER with a rear full dormer and the front of the roof will slope down to meet the 1 1/2" high plate.
Can someone help me?