After power washing and repairing this red-cedar roof, a worker sprays on Cunapsol 5, which will keep it free of mold, lichen, and decay for up to five years. RESTORING and TREATING WOOD SHAKES and SHINGLES Double or triple the service life of a cedar-shingle roof by power washing and treating by Brian Buchanan Dating back to the earliest days of colonization in North America, cedar shakes and shingles have offered strength, durability, insulation, and beauty to our homes. A wood roof imparts a look of quality that few other roof coverings can match. Only a few years of exposure to the weather, however, can drastically change this "quality" roofing. Through the interaction of sunlight and rainfall, cedar shakes and shingles can lose virtually all
