Durability and LCC estimation of a renewal method for external walls by application of net overlaying and anchoring

Abstract

As a result of a invetigation into the actual conditions for a housing-building that has been appiled a renewal method for external walls by application of net overlaying and anchoring 20 years ago, it is clear that materials for the method have no deterioration. And then, economical evaluation with two case of life cycle cost estimation has been conducted. One case is repeat of removal of existing overall substrate mortar and surface coating. The other is application of the renewal method with net overlaying and anchoring. In this paper, it is judged that latter is more economical than former after 25 years from renewal construction, because the latter has expensive initial cost, but it is able to reduce running cost. In future, continuous invetigation into the actual conditions for the applied building would be conducted and confidence of delanation effect and LCC estimation would improve.