Consider a composite wall that includes an 8-mm thick hardwood siding, 40mm by 130mm hardwood studs on .65m centers with glass insulation ( paper faced, 28 kg/m^3) and a 12mm layer of gypsum (vermiculite) wall board. What is the thermal resistance associated with a wall that is 2.5m high by 6.5m wide ( having 10 studs, each 2.5m high)? assume surfaces parallel to the x-direstion are adiabatic.