As a proud homeowner, you want your roof to look like it does in home improvement magazines and TV shows: shiny and free of debris and unsightly grime. But often, nature has other plans in mind. Overhanging branches, heavy rainstorms, and excessive moisture can all leave your home’s covering in bad shape.
In this article, we’ll discuss three methods to clean a roof and provide tips on preventing future grime buildup on your roof shingles.
Have you noticed black streaks distracting from the beauty of your roof? These blemishes usually indicate the presence of blue-green algae. If the stains appear to be lighter in colour, you likely have green colonies of moss growth.
Luckily, you can use a bleach mixture of laundry-strength chlorine bleach and water to fight off these stubborn moss or algae stains:
Warning: A bleach solution could stain your asphalt shingle roof if you apply too much at once or don’t wash the liquid off properly. Improper application can also dislodge shingles or cause bleach discolor shingles.
Bleach can be corrosive and unpleasant to work with, so you can opt for a roof cleaner to do the job instead. A professional-grade cleaning product will target roof algae, like Gloeocapsa magma. Plus, you won’t have to mix anything yourself. Different roof materials may require different cleaning approaches to avoid damage.
These cleaning products contain chemicals like sodium hypochlorite that lift deeply-set discoloration. While sodium hypochlorite isn’t as strong as bleach, you should still exercise care when handling it. Stronger sodium hypochlorite mixtures can pose risks to plants, animals, and the environment if not properly handled:
There isn’t a single type of roof cleaning product on the market. So, one could work better for the particular spores you have than another. The only way to find the best product for your circumstances is through trial and error. We recommend experimenting with multiple products to figure out what works for your roofing.
Some homeowners wish to steer clear of any chemical products, as they fear staining their asphalt shingle roofs. If you fall into this category, you can use a pressure washer instead.
Professional roof cleaners will charge hundreds of dollars to pressure-wash roofs. While you could cough up the money for this service, it isn’t necessary. If you don’t have this piece of equipment on hand, you can borrow one from a neighbour or rent one for a low cost. Then, you’ll have to dedicate an hour or two of your time to get the job done.
Keep in mind that a regular hose won’t be enough — a pressure washing machine will produce a pressure of 2,000 pounds per inch or more.
It is also important to get the roof cleaned routinely to prevent buildup of grime and algae.
After you finish the roof cleaning process, you should take preventative measures to prevent algae from coming back. For example, cut away any tree branches that are touching your roof or blocking sunlight. If you allow these branches to hang around, you’ll promote moss and algae growth.
It would be best if you also made an effort to go on top of your roof and clear the gutters of debris. Use a battery-powered leaf blower for convenience. The whole process shouldn’t take too much of your time, and it’ll promote adequate drainage and prevent algae and moss from growing.
Different roof materials may require different cleaning methods, so be sure to use the appropriate technique for your specific roof type.
What can you use to clean your roof shingles?
You can use many products and methods to clean your roof shingles, including chemicals like sodium hypochlorite and force from a pressure washing machine. Different roof materials, such as asphalt shingles, may require specific cleaning methods to avoid damage.
Should you clean your asphalt shingle roof?
Yes. However, it would be best if you didn’t do so too often. Climbing onto your building to clean your roof too frequently can loosen the roofing shingles’ granules and leave the roof covering exposed to the elements.
How do you clean dirty asphalt shingles?
Learning to clean a roof is a process. Determine what grime your asphalt shingles are prone to developing (moss, algae, etc.). Your covering may only need water and some scrubbing to uplift the discoloration. However, more stubborn stains will require harsher chemicals or excessive force.
Will bleach damage roof shingles?
Bleach is an effective cleaning solution that shouldn’t damage asphalt shingle roofs. However, you should always rinse away your mixture thoroughly to ensure the liquid doesn’t leave behind lasting damage.
Why is it important to start soft washing immediately after applying a bleach mixture?
After applying a 50% bleach and 50% water solution to clean asphalt shingles, it is crucial to start soft washing immediately. This helps remove dirt, mold, and debris without letting the solution remain for too long, which can prevent potential damage to the shingles.
From customization to high-quality service, our team at T. Simpson Roofing Ltd. will always have your best interest in mind.
If you are interested in learning more about your roofing options, click here or call 1-800-925-3044 for more information.
