Calculate the conduction heat loss for the following wall: 15ft long, 8ft tall. Calculate for 8 hr, inside temperature at 78F and the outside temperature at 3F. Wall components from outside to inside are brick; 1.2cm(1/2 in.) plywood; wood studs, 5x10 cm (2x4), 45cm (18 in.) centers with 9cm (3.5 in.) fiber glass batt between the studs; 1.2cm (1/2 in.) gypsum board. Remember that the air film adds to the insulation.