A review of published literature concerning the weathering of non-bituminous roof waterproofing materials (IM-PDU-030)

The action of weather on polymeric materials leads to degradation which may or may not be desirable. It is frequently necessary that plastic materials degrade (1) e.g. packaging materials and modern detergents are two 'plastics' which are designed with their eventual destruction in mind. Polyurethane elastomers, when first employed in...