Enclosed Porch Addition

[mkeilx2]

We want to add an enclosed porch that is supported by a slab foundation with a cross gable roof. Basically the majority of any load would be in the slab foundation and walls over that foundation. We do not want to just extend the current roof line but create a gable that comes off the existibfg roof. The actuall gable over teh existing roof would just tie it to teh new structure,we would keep existing walls etc. Is it possible to engineer this>