Chris's old house, is a good example of a simple roof designed to allow more solar. near south facing roof without much shade.
If your building a new house or building we can consult with you. We can help design your building for Solar power plus give some ideas on how to make your building more Energy Efficient.
If your looking to update your existing house and make it Energy Friendly we can offer a few ideas.
We got the sun in Texas plus in many areas net metering and Rebates for solar PV or solar hot water.
We dont build homes today, but know some good builders that do energy star homes.