Clean Your Roof The Right Way - The Different Methods Available

Roofs are usually cleaned using any of three common methods

, regardless of whether theyre stained by algae or not. Each of these methods however, has their pros and cons. Under normal circumstances, a roof is cleaned using either:

1.Pressure Washing

2.Chlorine Bleach Solutions

3.Sodium Hydroxide Solutions

If these methods are done correctly (and only once), its likely that your roof will be cleaned effectively without any significant negative effects. The issue though is that youll usually have to repeat the cleaning process every 6-18 months to maintain a clean look, depending on which technique you decide upon. Therefore, choosing the right method for your roof is very important.

Chlorine Washes

This method requires significantly less rinsing than the other two, which allows you to conserve water and have your roof cleaned in less time. This of course means that therell be less wear and tear done to the roof. Chlorine however is a toxic chemical, and has the potential to harm people and plants. Skilled workers should exercise caution to protect both the residents and the property itself from spray runoffs. This method is well suited to asphalt and shingle roofs.

Sodium Hydroxide Washes

This method can be very effective for removing grease from your roof. However, it also takes a lot more time than chlorine washing due to the fact that sodium hydroxide requires thorough rinsing. As a result, the roof is at more risk of being damaged throughout the process. The rinse is strong enough to wash away the cleaning solution on asphalt shingle roofs, and is therefore strong enough to knock off asphalt granules.

Some professional house washers claim sodium hydroxide to be safe, but in reality, it can be quite toxic. You should always make sure proper precautions are in place to account for runoff, as it can do damage if it comes into contact with people, plants or anything surrounding the area. After all, the chemical is corrosive and any left over residue can damage the roof over time.

Pressure Washing

If your roof is made of concrete, tile or metal, power washing is very effective. Some companies, such as Brisbanes popular House Washing Experts, tend not to use chemicals, making power washing an extremely eco-friendly option. However, the technique is rather time consumin, and can put more strain on the integrity of your roof. If your roof is made of coated tiles, the thin layer of colouring can be easily washed away. For concrete roofs, pressure washing will bring out the concretes natural grey colours.

No matter which method you decide upon, its important to weigh up the various risks and benefits of each roof cleaning method first. Do your research, and make sure you ask any and all questions when approaching a contractor. While the end result should always be a better looking house, there may be adverse effects if you dont choose the right technique for your home. Companies like the House Washing Experts should be able to talk you through the options.

by: HouseWashing

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