Coastal climate provides very harsh strainings on coastal buildings and their exterior surfaces. Building envelopes are ideally intended to last the life of the whole building and withstand cliamtic conditions. The research focuses on envelope problems in low-rise resorts buildings in NWC (North-West Coast) due to the constant exposure to harsh climatic impacts. The parameters of exposure were recognized and exposure categories were classified according to severity degree. The analytical field study was carried out on a number of resorts in North West Coast of Egypt. The effects of exposure variables were demonstrated by an analytical example on render finished exterior walls and Veneer walls. The problem walls were surveyed. The research indicated areas where there is increased potential for enclosure and durability problems. The results were verified using questionnaires directed to owners and practitioners. Recommendations for enhancing durability were obtained.