Guide to roofing.
- August 2015 (5)
Metal roofs are a lot cheaper than other roofing materials, but they normally suffer from oxidation and rust buildup. Oxidation does not necessarily cause problems, and itís the same thing with rust. The thing, however, is you would want to remove any traces of wear and tear that destroy your roofingís aesthetic appeal. †
Here are some of the solutions that can possibly restore your metal roof:
Sandblasting to strip rust and paint†on the metal roof will give satisfying results. While this method is used largely in industrial sectors, it also works well on metal roofing. Others, however, do not want this because it can be expensive and time consuming. You can either hire sandblasting services or opt for do-it-yourself. When doing it on your own, you may rent a sandblasting machine and then carry out the work. Please remember that sandblasting wonít improve the condition of the metal roof thatís already been damaged by rust; otherwise, this condition requires replacement.
Modern chemical treatments are safe for both users and the environment. Chemical treatments work well on roofs with mild oxidation and are the quickest option. Considered as the chemical counterpart of sandblasting, chemical rust treatments remove the oxidation buildup from metal roofing quickly and easily. Once youíve bought the chemical, spray it to the affected area and allow the solution to dry for a few hours. When dry, wash it away with water and the remains of the rust will go away. The downside, however, is the added risk of rust build up in the future. The chemicals can also become expensive.
Itís the most accessible and cheapest way to solve oxidation problems, but this is used only when you have plans to repaint or restore the roof.† The spray can be bought from hardware stores. Apply the spray to the oxidized areas and allow it to sit in there until dry. The rust will become a solid protective surface that you can paint†