Residential Hip Roof Design

Job ID: 39793463

Budget: €30 – €250 EUR

I need a roof design for a residential building. I have an existing truss roof, with a cut hip on one end. Its a semi detatched house. I want to re-roof my house to create an attic room
Span is 11 meter and height is 3.2meter

I dont' want to use any steel if possible