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Mount Pleasant Roofing: Article About Preventing Corrosion

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Many homeowners love the idea of a metal or tin roof. The sound of raindrops pitter-pattering over the surface brings to mind memories of childhood, of summers spent in the countryside and of classic southern novels. Still, with metal roofs comes corrosion, something which isn't so fun. Environmental corrosion leads to leaks, damage, and poor insulation of the home underneath. Luckily, corrosion can be prevented with a few basic practices or help from a Mount Pleasant roofing expert.

First of all, tin is not the only option for roofing. Copper sheet metal is a fantastic choice for several reasons. When copper interacts with the environment, a patina forms across its surface that protects it from further corrosion. The patina is usually a consistent color that forms evenly, giving a uniform sheen that adds to the beauty of the roof. In addition, the sheen reflects sunlight as opposed to absorbing it, keeping the home cooler than it might be otherwise. However, while copper is a great roofing material by itself, placing it in a location where it combats runoff from other surfaces leads to greater corrosion than it is naturally capable of withstanding.

While using copper roofing, there is usually little need to add any commercial products to the roof.

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However, if the roof is in a location where there may be runoff from other sources, it can be prudent to add a coating of another material to act as a shield. This coating will prevent the natural patina from forming. If you like, the coating can be added after a year or so when it has formed. Whether the patina is present or not at the time of coating makes no difference on performance. Any polyurethane coating is a good choice, and helps to protect the copper roofing from acidic runoff from other sources.

Another option is to use a different roofing material and then adding copper to the top. This redundancy provides added protection against corrosion through the use of single-ply membranes that act as a shield to the base layer. If no other materials are desired, the homeowner can place two layers of copper, allowing for the top layer to be replaced when the corrosion has become too great.

Copper isn't the only option. It is recommended simply because of its natural anti-corrosive properties. Other materials can employ the use of membranes, chemical protection methods and more. The location of the home is also a factor to take into account when trying to prevent corrosion. Homes located in areas with high amounts of air pollution are more likely to receive rain with a higher acid content, and this acid content is what speeds up corrosion for most homes. However, by employing a few simple methods, corrosion is a process that can easily be prevented.

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