FAQs about Cleaning Roofing Shingles

Dirty roofing shingles are not attractive, nor are they helpful to protecting the lifespan of your roof. And, since your roofing shingles are the final layer of protection between you and the elements of nature, you want to keep them well maintained.

But, how does one go about cleaning shingles?
Does one simply scrub them as though they were a dirty kitchen pot?
And, what causes the shingles to become dirty?

Actually, cleaning shingles is not horribly difficult and can be done by homeowners, assuming that the person who will be doing to the shingle cleaning does not have any height issues!

But if you have never attempted shingle cleaning, then you may have several questions before getting started. To help you out, we have collected and answered a few of those most frequently asked.

What should I use for shingle cleaning?
Mix 2 gallons hot water, about half a cup of an oxygen bleach and a quarter to half a cup of liquid soap in a bucket, then pour the mixture into a garden sprayer. Simply spray the shingles with the cleaning mixture, let it set a few minutes and then scrub with a stiff brush.

Can chlorine or standard bleach be used for cleaning shingles?
Though you may hear people say that these items are safe for the roof, it is not recommended. While the bleach/chlorine may get the shingles clean, it is only temporary. In addition, the chlorine must be handled carefully and you will need to completely drape any shrubbery/plants where run-off can occur as the shingle cleaning mixture can kill vegetation. This mixture can also void a home’s termite warranty due to the interaction with the protective chemicals in the ground. The oxygen based bleaches do not have this issue, and will not have the same negative effects.

Can I use pressure washing for shingle cleaning?
This is not recommended, as it is more likely to damage your shingles or even loosen them, creating a much bigger problem than stains.

Why is shingle cleaning sometimes necessary?
Dirty shingles are usually the result of mold or algae and are indicators that the roof has lost the ability to prevent these types of growth. When this growth occurs, it interferes with the roof’s ability to reflect heat thus increasing energy bills.

Cleaning shingles may not be the most glamorous job on the homeowner’s To Do List, but it is an important one.

Don’t let roofing issues pile up, but address them as soon as you can. Should you not feel equipped to tackle cleaning shingles, then talk to the Rescue Roofing Specialist team to learn how we can help.

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