FLAAustin

I'm learning this product and am a bit slow, especially when it comes to roofs, etc.

This is a two story house we are working on building, currently it is over the 3000 sqft
max living space (building cost constraints).  The bottom floor is 10' and second is meant to
be 8'.  The roofs are 12:12.  Looking to add a shed roof  at the level of the 2nd floor joists to
go over the porch.  It would be in the range of 3 or 4:12 pitch.

Any hints on how I create a shed roof to go over the front porch and attach to the building?

Thanks in advance for any pointers.
Also I realized I should attempt to put this in a proper part of the Home Talk for Hints and Tips but didn't see how to do that.
Sorry....