Aluminum Roof Coating

As a roof takes all the beatings of heat, rain, storm and snow, it tends to wear out very easily. An aluminum roof coating can prevent any kind of damage on the surface of the roof. Read on to know more about aluminum roof coating...
During summer, due to the high temperature, the roofs tend to get distorted. This may even create cracks and holes on the surface of the roof. During the rainy season, water cannot be drained out of a flat roof properly. The accumulated water at the sides of the roof can damage not only to the roof, but also to the walls, doors and windows of the building. There are other factors like acid rain and other pollutants that put additional pressure on a roof. For these reasons, roofs need a special protection that can last for a long duration of time.

Aluminum Roof Coating

The best option for flat as well as a sloped roof, is the aluminum roof coating. It possesses a lot of strength and has high durability. There are two types of aluminum roof coating: one is aluminum fiber roof coating and the other is the aluminum non fiber roof coating. Aluminum roof coating consists of aluminum paste, oxidized asphalt, solvent and it may or may not contain fiber. The quantity of aluminum paste present in the roof coating often varies from one product to another. A roof coating that contains higher amounts of aluminum content will last for longer period of time.

Application of Aluminum Roof Coating

The effect of the aluminum roof coating depends on how well it adheres to the surface of the roof. To achieve the best results, you need to prepare the roof surface properly. All the dirt, grease, loose debris should be cleaned by either sweeping or vacuuming. To get rid of heavier pollutants and old coatings, wash off by water blasting. Drain out the excess water; otherwise, the aluminum coating will fail to stick to the surface of the roof. Inspect the entire roof carefully to find out any cracks and holes on the roof. If there is any, repair them before applying the roof coating.

When the repair work has cured completely, on then, start applying the aluminum roof coating with the help of a soft-bristled broom. Follow the recommendations of the manufacturers for applying the coating. Always keep the finish of every stroke of the brush in the same direction. As the orientation of the aluminum coating is the same, the reflection of the light would be uniform. In case you want to apply the roof coating by spraying, choose an airless sprayer. Make sure the coating is sprayed evenly all over the surface. Once it is applied, keep it untouched until it is fully cured.

Advantages of Aluminum Roof Coating

The bonding between the aluminum pigment and the asphalt base is strong, which enables it to resist heat and moisture. It also increases the life of the roofing and saves the cost of its maintenance. Aluminum has high reflective properties. It is capable of reflecting out almost seventy percent of the sunlight. As a result, the asphaltic oils that forms the base of the roof coating stays well-protected. Thus, the elastic properties of the roof coating remain intact and thus, prevent cracking or drying out of the roof. As the heat and light of the sun is reflected out, the indoor temperature of the building decreases to a great extent. In future, when you need to upgrade or repair your roof, the task will be easier, if you have an aluminum coated roof.

You should keep take into consideration the weather condition in which you are applying the coating. Aluminum roof coating works well in high temperatures, but if it is too high, spots may appear on the coating. An extremely cold temperature, can prevent the formation of the foil of the aluminum coat. The dews at low temperature can make blotches on the coated surface. Problems may arise if there is rainfall before the coating is fully dried up.
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Last Updated: 9/22/2011
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