How To Build Different Roof Pitches

The buildup equals the difference between the unit rise of both roof pitches.

How to build different roof pitches. To keep the porch roof framing as simple as possible we installed a structural ridge. Step 1 preparing the area. Gently bend the flashing using the edge of the lumber. How to join the roof pitches.

Select the roofpanel and put in the desired pitch for the roof plane that will build over this wall. Place the 2 by 4 inch piece of lumber along the center of the flashing. Then you build up the wall plate under the steeper secondary roof as in figure 2b. Step 2 measuring the length of the joined area.

Using the select objects tool click on the wall which has a higher or lower pitch than what you set in the build roofdialog then click on the open object edit button. Step 3 prepare a piece. Slide the right edge of the flashing under the highest roof pitch. When you want to join roofs in which the pitches are not in the same ratio the very first.

To keep the overhang the same and line up the fascia you must begin the roof layout from the inside top edge of the fascia not from the outside of the exterior walls.