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Why Does My Asphalt Shingle Roof Have Black Streaks On It?

Why Does My Asphalt Shingle Roof Have Black Streaks On It?

Those ugly black streaks and dark spots on your roof may look like dirt, soot, mildew, or mold, but what they indeed are is algae. The most common type is called gloeocaspa magma, which is also known as blue-green algae.

Algae growth usually starts as tiny spots which become visible streaks with time. Usually, before you notice, it has been on the roof for about two or more months.

Why does it appear black? Gloeocaspa can create a protective darkly pigmented outer coating that protects the algae from possible damage from UV rays. This is why your roof has those unsightly streaks. While algae can be found on all roofing types, it is usually more common on asphalt shingles.

Why do Asphalt Shingles get Algae?

Algae spores can be brought to your roof by wind and birds, and because they are airborne, they can rapidly spread from rooftop to rooftop in your neighborhood. It is likewise the case for condos, townhomes, and apartment complexes.

To reduce cost, most shingle manufacturers have switched to shingles containing asphalt, mostly made up of fillers such as crushed limestone and fiberglass, which facilitates the growth of algae. The crushed limestone filler is a food source for those algae.

Is Your Roof Algae Dangerous or Harmful?

Roof algae are not dangerous or harmful on its own, but eventually, the algae can cause the protective UV granules covering the roofing shingles to begin to come off by drying them out.

Fungus, which is also airborne, can combine with algae present on your roof to form into lichen. This lichen feeds off both the shingle filler and the algae. Unlike algae, lichen can grow roots, which makes it more difficult to remove than algae.

How do You Remove the Black Streaks on Your Roof

You can easily remove your roof algae by occasionally cleaning your roof. However, you should note that while cleaning your roof yourself is good for its maintenance, it may void any roof warranties or insurance policies you may have.  Always hire a professional roof cleaning company, that specializes in soft washing to remove the black streaks on your roof.

Conclusion

Roof algae can be a displeasing site every time you look at your roof. The black streaks are very unattractive, but with proper and occasional cleaning (once in a year or two), you can keep your roof looking new.

Contact us today at Power Green Clean for a free quote today! (216-839-9274)

Stay Off The Ladder Hire A Roof Cleaning Professional

Stay Off The Ladder Hire A Roof Cleaning Professional

A roof cleaning can be extremely challenging and in some cases dangerous as slips can result in severe injuries or event into fatalities. A ladder will be needed in order to clean a roof and this alone can be a dangerous situation as navigating the roof in order to clean different areas, which may result in an unfortunate fall. In addition, in many cases people to do not have the required equipment and experience in order to perform an appropriate cleaning as the procedure may require specific chemicals and heavy equipment that you do not own and do not have the experience to handle and use, which can also lead to accidents. Finally, the roof may be damaged and hence a cleaning professional will be required in order to perform the cleaning.

Call (216-839-9274) today for a free quote!

Stay Off The Ladder Hire A Roof Cleaning Professional

Exterior Cleaning Tips In Strongsville, OH

The exterior outlook of your home is as important as the interior. Not only is it the first thing that people see when they drop by, but it also leaves them with a first impression about what they are going to see, if they ever make it inside. Also, if you don’t take proper care of your exteriors, grime, mold and algae will lay claim on what belongs to you, it’s only a matter of time.

There are many potential methods to clean the exterior of a home, but some of them can leave your home damaged over time. For most homeowners, hiring a professional is always the best and most effective way to leave an impressive look on their property without damage.

Before you choose any kind of exterior cleaning for your home, here are a few helpful Exterior Cleaning Tips In Strongsville, OH that you should know

Pressure Washing

One of the most effective home exterior washing methods most homeowners prefer is pressure washing. But there are two types; high and low pressure washing for cleaning patios, roofs, garage, sidings, sidewalks and other parts of your exteriors. Pressure Washing is used to remove tough stains, grimes, mold, moss, algae and dingy stains on surfaces that have built over the years and months. Make sure you choose a company that uses low pressure and suitable cleanings for cleaning your home’s siding, roofs and other surfaces to clean it safely and effectively.

Gutter Maintenance

The gutter system makes up part of your home exterior, it shouldn’t be overlooked or left untouched. It should be cleaned twice yearly or at least once in a year, depending on the season. Make sure there are no leaks and the downspouts are clear to remove debris and leaves. A bad or leaky gutter will not only damage your roof, but excess water has the potential to weaken the siding or damage the home itself.

Driveway Cleaning

Most homeowners tend to overlook this aspect of home exterior care. After all, it’s the driveway! The driveway will need periodic pressure washing, if there are no other obvious or serious stains. You can also use driveway waterproof sealers to prevent damage to your driveway and protect it against accumulating dirt and stains, making future cleaning easier.

Window Cleaning

A filthy and dirty window makes the look of the outside world from the inside blurry and dull. It also doesn’t reflect the true beauty of the home. It’s generally recommended that windows be cleaned twice per year, but this isn’t a rigid cleaning rule. Depending use, the weather and the location of your home, periodic cleaning is best to keep your frames clean and impressive. With squeegee, warm soapy water or a sponge and a water hose and you’ll have just the window you want.

Remember, your home’s exterior is just as important as your home interior – more important when it comes to curb appeal. With a professional approach, you can have a dirt free, sparkling clean environment home exterior. You can also preserve the esthetics of your home and property while doing that. 

Need help with keeping the exterior of your property clean? Call PowerGreen Pressure Washing at (216) 839-Wash (9274) or visit our website to get a free quote!

Pressure washing vs Soft-washing!

Spring is right around the corner and you have a list a mile long of what needs to get done. Once those temperatures rise it’s time to emerge from our winter hibernation and we get the first glimpse of the sunshine filled outside world. Unfortunately, the first thing we see may not be all that pleasing to the eye. We begin to see the ugly emergence of that all too familiar friend, MOLD. Mold on our siding, mold on our brick, mold just about everywhere. During the winter months, the cold weather doesn’t kill mold spores. They survive just as other plants do, hiding in the pores of your exterior surfaces, and as the weather warms they go into growth mode. Taking in all the fresh moisture they can grow, making our homes an ugly green rather than a fresh clean. So now it’s time to have your home cleaned and you need to decide if you are going to do it yourself or hire a professional. Most homeowners think homes can be pressure washed and that’s all they need. This idea is outdated and has been given to them by home improvement stores, painters, general contractors and even some window cleaning companies. So they rent a pressure washer, use their own or hire one of these general guys with a power washer to clean their siding or roof.   This is where the trouble starts… What you won’t see is what’s actually happening. First, yes the mold is being pushed off the surface, but only the surface mold. The source of the mold, where it actually grows from, is still deep in the pores of the surface. More than likely your surface now has damage from the pressure which only provides the mold spores more areas to hide in. Next year, or even later the same year prepare for even more mold to show up! Vinyl siding and even aluminum siding was never meant to be pressure washed. Vinyl siding has a clear coat cover the outer most layer consisting of protective materials including a UV protective coating which prevents your siding from fading in the sun. Over time this outer coating oxidizes and begins to look cloudy. This can be seen very commonly near water spigots on the side of the home where you might lean against the siding, leaving an absence of oxidation where your fingers may have rubbed it off. High pressure used on these surfaces can pre-maturely remove these coatings causing damage, early sun damage, degradation and even in some cases voiding a warranty. A leading high-end siding manufacturer, CertainTeed, warns consumers away from pressure washing siding “NOTE:  We do not recommend power washing vinyl or polymer siding as it can cause moisture intrusion, damage, and/or discoloration.” and instead recommend using the SOFT WASH method. When using hard pressure this oxidation can be easily removed leaving visible streaks that actually make your home look cleaner but in reality, it removed all of your UV protective coatings, exposing your home to the damaging effects of the sun. Once this oxidation is removed by an untrained professional or homeowner, it will be streaky and very unsightly. The only cleaning option at this point is a full chemical restoration and unfortunately, this can be very expensive.
This is why we recommend not remove this oxidation in the first place. DON’T USE PRESSURE!
SOFT WASHING is the new industry standard. Quite simply it’s washing a surface, vinyl, aluminum, soft stone, even brick with a gentle rinse. Using chemicals, specially designed to kill the mold spores and used in a manner that is safe for your existing landscaping, pets, and the environment. This gentle rinse washes the dead mold away leaving your surface completely clean all the way into the pores. You may ask why companies like Powergreen Pressure Washing use pressure washers if they use the SOFT WASH method. Pressure is still used on concrete combines with heat and chemicals to clean years of mold and abuse on most hard surfaces. We then use special pumps designed for distance and volume rather than pressure to clean your vertical soft surfaces, chemically injecting our solution to the hardest to reach places. Soft bristle brushes can also be used to remove the most stubborn old stains and growth. No other method is recommended for cleaning siding and if another contractor or professional tells you otherwise, be cautious as they most likely don’t have your best interest in mind.  
Pressure should ONLY be used on hard surfaces such as concrete, hard stone, and some brick. Surfaces such as vinyl, aluminum, stucco, soft stone, and wood should ONLY be treated with a “soft-wash”
For a free quote, you can contact one of our team members today at 216-839-WASH (9274) or head over to our home page and submit a quote request. www.powergreenclean.com  

10 tips on preparing for a successful spring





Traditionally the post-winter cleanup and outdoor activities start when spring arrives, but as many of us have learned, very often unexpected things in our lives seem to pop up and throw us off our game plan. For this reason, Powergreen is suggesting to get a jump start on spring around mid to late March to avoid feeling overwhelmed and abandoning your spring cleaning plans or just running out of time. We have prepared one of the most comprehensive top 10 to do lists we have seen to help you on your spring journey.

After a long dull and cold winter spring can come sooner than expected. Start just before the nice weather arrives and you will be all set to enjoy the fruits of your labor with nice weather and a warm sun shining down.

 

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