Materials are carried throughout the property, some repeated on the interior, exterior and fence walls. Ehrlich paid extra attention to using sustainable materials as well. The siding is Trex, which is usually used for decking and is made up of recycled sawdust and plastic. The steel is Cor-Ten, which has a rusty patina that transforms over time. Concrete blocks are used inside and out. Concrete floors throughout the first floor provide radiant heat during the colder months and help keep things cool during the summer.