We use only Complete Cedar Shield™ for preserving our customer’s roofs. We have tried all of the other products available in Chicago and have found it to be the very best. Complete Cedar Shield is the only product that addresses’ all of the issues a cedar shake roof is exposed to. Every wood roof has some amount of mold, algae or moss. Sometimes algae only shows itself when the roof is wet. Complete Cedar Shield is the only product that contains a known mildewcide. It also contains an acrylic component that gives the fragile surface wood strength. The acrylic helps stop the erosion that makes shakes thinner and can expose the tar paper if too much wear occurs. This combined with a special longer lasting wax gives superior water repelling characteristics. It contains Zinc-Borate, which gives excellent UV-A/UV-B protection. The Zinc-Borate acts as an antimicrobial, which keeps the mold, algae, and moss from coming back. Complete Cedar Shield comes in three beautiful colors. Timberland Brown is a deep chestnut brown color, which provides a great contrast to accentuate rooflines and architectural features. Weathering Grey is a light gray that will brighten the roof but is a true gray, not the white color you may have seen. Slate Grey is designed to make the most natural appearance, one that keeps the color closest to what an untreated roof looks like. The pigment can also be added if a darker shade is desired.