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What is the difference between Blue-green algae and Moss
On some roofs that stay moist for extended times, moss grows in addition to the algae. Moss is a plant and will damage the shingles by causing gradual loss as its roots dig into the shingle. Alega, on the other hand, is a bacteria and is not as destructive, but still unsightly. This article focuses primarily on roof algae.
Why Does it Matter?
The primary concern for homeowners usually is the way staining detracts from the aesthetics or curb-appeal of their home. Most people judge a roof’s age by visual signs. A dark, stained roof looks like an old roof when in actuality the roof may be only 8-10 years old. If you're looking to list your house for sale, most homebuyers are concerned about two main things. What is the condition of the roof and how old is the HVAC system? Unfortunately, if your roof is stained, the prospective buyer sees it as an older roof that may need to be replaced soon.
What
What Are the Solutions?
Solution
Clean your Roof
If your current roof is staining and it is not due for a replacement, consider a soft wash using these steps.
- Create a 4/1 solution using oxygenated bleach, water, and TSP (Trisodium Phosphate). It is important to use oxygenated bleach, not chlorinated bleach so you don’t kill your yard after you rinse it down the gutters.
- Apply this mixture to the roof surface and allow it to sit for 20 Minutes. It is important to choose a cooler day, to prevent your solution from evaporating too quickly.
- Rinse the solution using a garden hose (never a pressure washer!). Also, be careful. The roof will be slippery when wet.
After you rinse it off you will see at least some difference. The full difference may take some time to show as the bleach solution will kill the algae and your roof will further clean itself with time. If you have actual moss growth, you should use a scrub on these areas.
Replace your Roof
Likely cleaning your roof or paying someone to clean it doesn’t sound too exciting. You may be wondering if all shingle roofs are bad. Actually they are not. As with most any problem, good companies do research and develop solutions for these issues. If you're in the market for a new roof the solution to the problem of staining lies in the shingle brand you choose to have installed. Due to the extent of the algae staining problem, most shingle manufacturers boast some sort of “Algae Resistant Promise” on their shingle packages and brochures.
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So what are the best shingles for algae resistance and non-staining warranties?
In our experience, Atlas shingles have made the most significant progress in tackling the staining problem in the shingle markets. Atlas’ Pinnacle Pristine and StormMaster Shingles carry a lifetime non-prorated non staining warranty. If you read the fine print, this means that if your new Atlas roof stains in the first 25 years, they will replace it. If it stains in years 26 and on, they will cover the cost of a complete roof cleaning. This is the strongest non-staining warranty in the industry and is possible through the science of the way their shingle is made using a 10% blend of copper coated granules that release over time. Copper ions are acidic and prevent the growth of bacteria like the blue-green algae.
Unless you're in the market for a new roof, both cleaning and replacing might seem like difficult and unattractive solutions. If you're in the market already, your solution is simple. Evaluate carefully the shingles your contractor is offering. What is the non-staining warranty and what is the science behind that manufacturer’s claims? Be very cautious if the warranty is prorated after the first several years. Also, be sure to check on what is covered if it does stain while under warranty. Educating yourself now is your ticket to choosing the right shingle that will preserve your investment by keeping your home's curb appeal in addition to keeping it dry!
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Our Clients Say
Don Campbell
Posted on Facebook
Very pleased with the roofing project from start to finish. You will be happy with the results partnering with Equity Roofing.
Julie Ebers
Posted on Google
They were quick to assess the damage to our roof after a storm and immediately provide an emergency fix. They took numerous photos of problem areas and provided cost efficient solutions. Extremely professional and we are thrilled with the results. Would recommend to all! Thank you!
Jamie Flyte
Posted on Google
Very easy to work with. Quick response. Fair pricing. And did a great job on the repairs of our roof. Definitely recommend!
Elizabeth Kibbe
Posted on Facebook
If you need a job done right and fast Equity Roofing is the way to go. I called on Monday with some water damage they had it fixed by Wednesday that same week. We had a big storm come that same day no problems. Even if we did they promised to come back if need be. Cause let's face it it's hard to find how water is getting in. I will be more than willing to share my good experience with friends and family whenever they need work done. Customer for live!
Elmer Stoltzfus
Posted on Google
We had skylight and roof leak problems for several years. Different contractors were not able to resolve it. Equity did an amazing job installing new skylights and shingles. Definitely will use them again. No more leaks whatsoever!
Larry Maturani
Posted on Google
We had a major project of removing dated aluminum siding and replacing it with vinyl siding and shakes. The planning took over one year. Since we also had windows replaced, the timing was of the essence. They coordinated the job perfectly without a glich. They work efficiently and clean up as they go. I could not have asked for any better workmanship. The costs were appropriate. They went above and beyond our expictations. I recommend them without any reservation.
Charlie Mickel
Posted on Google
They came right out after I called and fixed my leak the next day. They even noticed some issues I wasn't aware of and fixed those as well. Pricing was fair and I would definitely recommend them to anyone needing roof work.
Jennifer White
Posted on Facebook
I needed painting and repairs done on my roof. I was pleased with the price and the time it took for completion. I never had a problem with them contacting me or answering questions. I highly recommend this company.
Joanna Knouse Charney
Posted on Google
They were quick to assess the damage to my mom's roof and immediately provide an emergency fix. They took numerous photos of problem and completed insurance request. They came out and replaced the roof in one day. They even chaulked around her chimney . Greatly appreciated everything they did! So happy! Extremely professional and we are thrilled with the results. Would recommend to all! Thank you!