We were contacted by this previous sunroom customer to build him a new "Shop & Greenhouse" although his specifications were not just your typical construction as he is a very "Green" minded person. We needed to use our "Green Built Room Addition" SIP's product for the walls and roof of the shop for energy efficiency as well as the walls of the greenhouse and install insulated polycarbonate roofing panel in the greenhouse for maximum solar and sun control for all of his special plants. The shop is heated by a small gas heater while the green house is almost a completely self contained heat system within itself from the roof panels, very little added heat is needed during the winter months for his seedlings. With an on-demand hot water source, sink, draind as well as portable plant pots he is in heaven when working in his greenhouse