Preliminary Recommendations for Maintenance of Factory Coated Metal Siding and Roofing

摘要

Recommendations and guidelines are presented for condition assessment and maintenance of the exterior surfaces of factory coated metal siding and roofing. The metal siding and roofing products commonly encountered on Air Force installations are addressed. The types of deterioration of metal buildings and appropriate methods of repair and maintenance procedures are related to the materials and construction practices used. The results of field observations of the condition of many types of coatings on metal siding and roofing in varying states of deterioration are reported. A quantitative condition assessment procedure was developed for exterior surfaces of metal buildings and consists of two parts. First, the condition of the siding and roofing of the building is evaluated using inspection forms, visual standards, and descriptions of levels of deterioration. In the second part, recommended maintenance procedures are determined using the evaluation data and analytical procedures which were developed. Visual standards and detailed coating failure descriptions were developed in order to identify and categorize the condition of the metal siding and roofing of buildings.