won't look right.
OK the first row of roof goes on that floor level under your dormers. I have planned one dormer a side. A large 3 block opening for front and back and a small 1 block opening on each side.
Sometimes it is helpful to lay down dirt to place blocks on. OH and I should say you are better off doing layer by layer all around the house. This is especially true if you have an odd set up of dormers or an strange roof shape. I didn't do that in this demo because I wanted to get it to you
faster lol.
You can see when you do it that way WHERE
you need to make your turns and inside corners.
Shows the merging roof with dormers.
And since it is an odd number you will have a one block at the top.
Other side of the large dormer.....how it would go into the regular roof. Remember you would be doing this all around your roof. From bottom to top.