When you model the roof, pay attention to how the flashing will work. In this video I am explaining, the roof flashing explaining the error in modelling.
Few things to remember when modeling roof
- Roof need support everywhere.
- Take care of roof slope and gutter requirements
- Gutter will require 65 mm gap clear if the gutter support is to run under the gutter.
- It is not necessary for the gutter support to run right through. Gutter support can stop at certain members and continue from the other side of members.
- It should be possible to flash the roof to the design requirement. Do not model the roof in such a way that flashing is not possible