Roof Cleaning Temperatures

Oct 25th, 2009
by Roof Cleaner Guide.

Roof Cleaning Season

During the fall and spring many homeowners ask about what season a roof can effectively be cleaned. “Can you clean your roof in the winter?”.

The answer is: YES, you can clean your roof in the winter if you live in Florida!

Roof Cleaning is driven by temperature more than season, so Floridians, prefer to clean their roof shingles in the winter because the temperatures are more reasonable for the homeowner who is doing DIY roof cleaning projects. (There is no technical reason not to clean a roof in 95 degree weather).

Roof Cleaning Temperature

For residents everywhere the real deciding factor is the Temperature. Roof Cleaning Products may vary on specific guidelines for use; however, the single consistent guideline is to only clean a roof when the temperature has been above freezing for over four hours.

The Roof Cleaning Temperature guidance is based on two factors:

Reduced risk of Ice on Roof Shingles

If you use a roof cleaner on roof stains that are covered in frost (which is just a form of ice) the roof cleaning product will first need to melt the ice, before being able to kill the roof stain. The process of melting through frost wastes some of the roof cleaner’s power, and lower the effectiveness. By waiting four hours, you’ll be sure the ice is gone.

Roof Cleaner Comfort and Safety

When the temperatures are below freezing, any one professional or homeowner who gets on the roof, will be dealing with frozen hose lines, wet clothes and gloves, and the risk of slipping on a roof surface with frost. In short, roof cleaning is no picnic on a warm day, but add fighting the cold and it becomes miserable.

Cold nights, and Warm Days

So on those days where the temperature was below freezing overnight, just wait until 4 hours of above freezing temperatures have passed. By this time the roof will have warmed up enough to not be frosted, and the air temperature will make the roof cleaning project less chilling!

On very sunny days, you may only need to wait 3 hours before starting roof cleaning project, because an asphalt shingle will absorb sunlight and warm very rapidly.

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Green Roof Moss – Roof Cleaning Solved the Problem

Sep 26th, 2009
by Roof Cleaner Guide.

Roof Cleaning Removed Green Moss

Moss Roof Cleaner Product Review

4.9 out of 5 stars

I bought your Roof cleaner and Roof Armor. My workers were roof installers who had never used a roof cleaning product before.
I have a log house in the woods and my roof shingles were covered with green moss and algae. For me this was a shot in the dark and compared to replacing the roof it was worth a try.

The roof cleaner was totally amazing. My roof looks brand new. The roofers were very impressed also.
Thanks for the amazing quality roof cleaning product.


Barbara A from Ohio – Aug 2009

Posted in: Roof Moss Cleaner, roof cleaner reviews.
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Roof Cleaners help Realtors sell homes.

Apr 9th, 2009
by Roof Cleaner Guide.

Clean Roofs Protect Realtor Commissions

The recent decline in home sales increased the need for a Realtor to make sure the home looks its best, and that includes the appearance of the roof shingles. Roof shingles covered in black streaks of mold, lichen or mildew cause potential home buyers to keep on driving; and that’s bad news for the seller and the Realtor.

When an offer comes in on a house with dirty algae covered roof the buyer will ask for the roof to be replaced, or at a minimum will look for the selling price of the home to be reduced by the cost of a new roof. The $10, 000 average replacement cost of roof means that a Realtor with a 7% commission will loose $700 in commission when the selling price is reduced.  Effective Roof Cleaning products can prevent losses in commission.

Roof Cleaners team up with Realtors

A roof cleaning business is an important member of a home Realtor ’s pre-sale team.
By offering roof cleaning services to a Realtor a roof cleaner ensures a steady stream of roof cleaning jobs. The best advantage is roof cleaners are paid before the house goes on the market, so a roof cleaner is not waiting for the house to sell to get paid.

Talk to your local Realtors

In these slow economic times, talk to local Realty offices, and build a relationship offer a roof cleaning services with Quality Roof Cleaners.

You can even offer incentives, or end-of-month billing for the roof cleaning jobs.

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Roof Stains in the Pacific Northwest

Oct 16th, 2008
by Roof Cleaner Guide.

Green roof stains found in Oregon and Washington.

During the fall a trip to Portland, Oregon and Seattle, Washington revealed 30% of roofs stained by green algae, mold and moss.   These roof streaks confirmed that algae roof stains can be found from the Florida Keys to the other corner of the country, Washington’s Olympic Peninsula.

In this region the pattern leans more toward moss, and green algae driven by the high degree of moisture and low amount of sunny days.

We have covered the tell tale signs of roof algae stains in previous post, so I won’t go into detail here.

Instead just a few words about roof cleaning when moss is present.

Moss and Roof Cleaning

Roof Stains can range from a thin film of green or black algae, to a dense carpet of green moss. Cleaning roof stains requires use of a quality shingle roof cleaner in all cases. When it comes to Roof Cleaning, moss roof stains sometimes require brushing to work the cleaner into moss (which can be as dense as carpeting).

Roof Cleaning Brush Technique

For roof cleaning green moss from roof shingles, start with a normal application of the roof cleaner, followed by a high volume rinse. In some cases, a single application of roof cleaner will do the job.

Thick moss may not removed by a single pass of roof cleaning; in this case find a Vehicle Wash Brush, a soft bristle brush that is used to clean your car (ie. it won’t scratch surfaces). Apply a second pass of roof cleaner, and before rinsing, run the brush across the moss to help work the roof cleaner into the moss. Then let the roof cleaner soak the remaining time, and rinse with a little more pressure!

Why the Wash Brush and Roof Cleaner Combination works

Because roof moss is so dense, any roof cleaner can have difficulty penetrating the moss.

A roof cleaning product can not clean moss that it can’t reach!

So the wash brush helps to open spaces in the moss, allowing the roof cleaner to soak into the lower levels of the roof moss. On the most dense of moss covered roofs, 2 or 3 applications may be needed to penetrate back down to find the shingle surface.

Posted in: Roof Cleaner Main Content, Roof Moss Cleaner.
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Roof Cleaner Information – Improved

Sep 26th, 2008
by Roof Cleaner Guide.

Roof Stains really kill the look of homes across our communities

At Roof Cleaner Info our goal is to get you the information you need about getting rid of roof mold stains and streaks.

You may notice our new look.  We’ve spruced things up a bit so you can find information more easily. Making roof cleaning even easier!

We appreciate you being here!

Thanks to our sponsors for contributing to the improvements!

It may take a few weeks to move all of our existing roof cleaner product articles and reviews over, but in the end we’ll have it all here!

So welcome to roof cleaner information 2.0 !!

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Roof Shingles with Black Streaks

Sep 26th, 2008
by Roof Cleaner Guide.
2 comments

Black streaks roof stains on roofs in Kansas, Missouri, Oklahoma and Arkansas

This summer driving through Kansas, Oklahoma, Missouri and Arkansas nearly 60% of roofs were covered in black streaks and the tell-tale signs of roof mold and algae.
It has become increasingly more common to see these stains across the United States as roof mold and algae continue to spread North and West from the Atlantic and Gulf Coast areas where the stains were most prominent in the 1990s.

The tell-tale signs of roof algae (sometimes called roof mold) are:

  • Initial Roof Algae dot

    • Roof Algae spreads through wind, bird and even small animals. Initially a few roof mold cells will land on the roof. Once the roof mold lands, it finds the crushed limestone in the shingles as a source of food. Between the Moisture, Food, and Sunlight the roof algae has everything it needs to reproduce and build a colony.

    At this stage you may not even notice the roof mold because it is so small.

  • Roof Algae spot

    • As the roof algae reproduces, the colony expands and become noticeable from the ground. At this point there can be over 500,000 roof algae cells (which is why it is visible from the ground). By this point roof cleaning should be performed to prevent further growth.

  • Triangle Shaped Roof Algae Colony

    • By the time the roof algae colony takes the shape of a triangle, it has been growing for over 18 months.

    Why does the colony take this unusual shape?
    As the seasons progress, rain and wind will cause the roof algae colony to be dragged down the roof (appearing as black roof algae streaks). Also, when rain occurs the wind may also blow the colony to the left or right of the streak. The makes the lower parts of the roof algae streak wider than the point at the top. Over a season of rainstorms, this causes the colony growth to take on the shape of a triangle

  • Black Roof Algae Sheets

    • At the point that many Triangle Shaped Roof Algae Colonies join together to appear as a black roof algae sheet, the roof appears to have more black roof algae than roof shingle visible. The upper part of the roof may continue to have a few peaks where the upper roof algae triangles first formed. At this point a Roof Cleaner is needed fast, before the cost of roof replacement becomes needed.

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