Reinforced plastics composites are increasingly in demand for the huge range of long-term applications - not surprisingly, as they are amongst the best materials in the world for durability. This exceptionally user-friendly guide has been written for engineers, designers and managers who are considering using reinforced plastics in applications where a long product life is essential, including buildings, bridges, boats, tanks, pipes and swimming pools. The book is clearly written and easily accessible to those with no background in composite science, although detailed references are provided for those wishing to pursue any area in more depth. After introducing the key concepts, there are chapters focusing on the effects of outdoor weathering, solvent and water attack, high temperature and repetitive stress. Experience with specific applications over time is discussed, and repair is considered. The use of computer techniques in predicting durability is outlined and there are some case histories.