OK, the default roof is set to a 5/12 pitch. When I create the plan, the automatic roof that is created has a 6/12 pitch. When I check the default settings, the default roof is still 5/12, so I manually change the roof plains to 5/12 and set them to hold. If I change a room again, with the auto build button checked, some of the roofs revert to a 6/12 pitch even though they are set to "hold" the 5/12 pitch. It's becoming frustrating. What am I missing?