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TOPIC: metal roof cleaning MAINTENANCE for Galvalume ®

Premium Member Roof Cleaning Institute of America

Status: Offline

Posts: 27

Date: Apr 5, 2015

metal roof cleaning MAINTENANCE for Galvalume ®	Permalink

With a little care and attention during service, a prepainted Galvalume ® sheet will provide an extended service life. While durable, factory-applied finishes for metal building panels will last many years longer than ordinary paints; they should be cleaned thoroughly on a routine basis whenever the finish is not washed by rain. Applications where the paint finish is automatically washed by rain, such as roofing, do not require this maintenance. Cleaning restores the appearance of the building, making repainting unnecessary, and maintains a pleasing appearance, as well as removing the buildup of corrosive materials. Applications requiring maintenance cleaning include soffits, siding under eaves, garage doors and the undersides of eave gutters. Cleaning In many cases, washing the painted surface with clean water from a garden hose will remove most of the dirt and accumulated deposits. Ideally, washing should be done at least every six months and more frequently in coastal areas where marine salt spray is prevalent or where high levels of industrial fallout occur. In cases where spray washing is ineffective in cleaning stubborn dirt, mild detergents or household ammonia solutions can be used as described below. In all cases, test a small unobtrusive area for color-fastness before cleaning large areas. • Use one cup of Tide ® (or other common detergent containing less than 0.5% phosphate) dissolved in five gallons of warm water. NOTE: Detergents containing greater than 0.5% phosphate are not recommended for use in general cleaning of building panels. • OR use one cup of household ammonia dissolved in five gallons of water at room temperature. Never mix ammonia with any kind of bleach. • Never blend cleaners and bleach yourself. If bleach and detergent are required, use detergents containing bleach. Using either solution, work from the top to the bottom of panels with a well-soaked soft cloth, sponge, brush with very soft bristles, or low-pressure spray washer to clean the surface. Washing from the top down avoids streaking. Application should be gentle to prevent shiny spots. Scouring powders or industrial solvents are not recommended, since they may damage the paint film. Solvent-containing cleaners such as Fantastik ® are very effective and can be used. If mildew or other fungal growth is a problem and cannot be removed as described above, detergent containing bleach, such as Tide ® with Bleach, is recommended. The surface should be thoroughly rinsed with water after cleaning to remove traces of detergent. __________________ J and E Roof and Gutter Cleaning Marysville Ohio http://jegutter.webs.com/roofwash.htm Roof Cleaning in Franklin, Delaware, and Union County OH 614- 738 - 1732 Edward Yackenovich

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