1- The section of a masonry wall is shown. U-factors for winter and summer conditions and estimate the heat transfer per square meter from the wall, assuming a location in Boston, ML. Consider 1% and 99% for design conditions, assuming the inside condition design is at 70 F. The wall consists of 4 in. of face brick (150 lb/ft), in. of cement mortar (cement plaster sand aggregate), an 8- in. sand-and-gravel concrete block (three-hole oval-cored), 1 - by 2-in. furring strips on block surface, and metal lath with perlite aggregate (sand aggregate) attached to the furring strips. (Neglect resistance of furring strips)