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Post Info TOPIC: RCIA TILE ROOF CLEANING TECHNICAL BULLETIN {WE ALL MUST BUILD ON THIS}


Premium Member Roof Cleaning Institute of America Certified Roof Cleaning Specialist

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Date: Jun 19, 2013
RCIA TILE ROOF CLEANING TECHNICAL BULLETIN {WE ALL MUST BUILD ON THIS}
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OK Here is a start. Copy and paste this in your post and add { perhaps in a different color text-so we see the additions } what you think will make a good tech bulletin for RCIA on tile roof cleaning. The photos are mine, but can be used on this bulletin if everyone cares to?

Certified Roof Cleaners, here at the RCIA, have cleaned roofs for many years, without the damaging results of using a pressure washing machine.

Most of us started out pressure washing them, but could see the severe granule loss taking place on the shingles and turning the pressure down didn’t solve the problem.

First off, it takes a certain amount of pressure to remove the black algae – period! So, if it requires say 1000 psi of pressure at the gun tip, which will work on shingles, but not on most tile, then it’s semantics.

If at 2000 psi at the gun tip, we can clean a roof holding our pressure washer gun tip say 1 foot away, then, if I turn the pressure down to 1/2 that, I have to move in to 6″ away to accomplish the same exact cleaning results.In other words nothing accomplished!


With tile, most roofs have at least a light glazing on top of a slurry coating {paint} Pressure washing can remove or dull that glazing. If the roof has been pressure cleaned before and that glazing is mostly gone, then the slurry coating, creating your roofs coloring begins to be removed. This will turn a red tile roof into a pinkish roof. It will turn other colors pale. Eventually, it will reach the plain cement the tile is made of, here and there, showing bare cement areas.

Some companies use a “Surface Cleaning Machine” and give their cleaning method nice names like shampooing your roof. These machines are made for flat surfaces and are great on Driveways and cement parking lots, where almost no damage can occur.

They are the worst thing you can do to a tile roof though. The powerful jets are angled to cut sideways, also, they are set at an exact amount of inches above whatever surface they are set on. With flat cement that perfect! Tile is not a flat surface, so the high parts get blasted badly, while the lower portions of the tile, barely come clean-if at all. If you went up and inspected such a cleaning job, you would find the former sharp, cut top edges to be somewhat rounded now. You would also find many small black lines of leftover algae. If any algae is left, it will continue to spread and need re-cleaning within 2 years!

An RCIA, Roofing Manufacturer Approved chemically cleaned, soft-washed tile roof is easily evenly coated and all algae is killed and disintegrated. That’s why a Non-Pressure Roof cleaning, as explained below, lasts just about twice as long as any type of pressure washing/shampoo style cleaning can.


Fortunately, you are not stuck, having to accept roof damage in order to have a nice, clean, healthy roof!


Many years ago some of the roofing manufacturers, came up with a formula to “chemically clean” roofs, using no pressure at all. It’s called by a few names “Non-Pressure” “No-Pressure” Soft-Washing” “Chemical Cleaning”
  many of us here at RCIA started using this method and chemicals specified by the roofing manufacturers and the Asphalt Roofing Manufacturers Association {ARMA} back in the 1990′s and found that it cleaned tile just as well as it cleaned shingles!

The roofing manufacturers specify a mixture of about a 3-5% solution of Chlorine Bleach and a little TSP {Tri S Phosphate}


Nowadays, there’s always someone trying to sell you something. Non Bleach alternative chemicals are on the market and I try them as they come out. They all use the “Eco-Friendly” “Green” sales approach, to sell their chemicals with.

The products many of us at RCIA have tried do not tell you what chemicals are in the product. So, are they safe and eco-friendly? Who knows? None that we have tried did a satisfactory job of cleaning a roof. So, none are products we could use on our customers roofs in good conscience. Plus, most of these new "gimmick" chemicals say the roof won't come clean for a few months after applying their chemicals. Try spraying a customers roof with one of these "homeowner specials" and then ask to be paid, telling them their roof will look good in a few months! Homeowners are smarter than that!

We do know what to expect and fear from bleach though! We wash our clothes in it, disinfect our kitchen food preparation areas with it, swim in it in our pools and drink it in our city water! When it dries, it turns back into salt, which is what it is made from.


You can go to the websites below and  read directly from the makers of your roofing.  You will see that what I am  saying is what many makers of roofing also say.

The links below all say to clean roofs with the non-pressure RCIA method!
They all also say specifically "DO NOT PRESSURE WASH"

{GAF Roofing Manufacturer}
http://georgoulisroofing.com/wp-content/uploads/2012/01/Algae_Staining_on_Shingled_Roof_Surfaces_-_Steep_Slope_Techn-43-808-v3.pdf

{ARMA Roofing Manufacturer Association  Cleaning Bulletin}
http://www.asphaltroofing.org/sites/default/files/tech-bulletin/tb_217.pdf

{CORNING Roofing Manufacturer} Click number 1 "algae growth"
http://roofing.owenscorning.com/homeowner/thingsyoushouldknow/needaroof.aspx

The ARMA also says not to allow anyone to apply any roof coatings. This is a common sales gimmick. Usually pressure washing companies-not roof cleaning companies-will pressure wash your roof and then sell you an after coating, which they want to reapply every 2 years. Read the ARMA warning below.

http://www.asphaltroofing.org/sites/default/files/tech-bulletin/tb_227.pdf

 



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Serving Englewood Rotonda North Port Cape Haze Venice Port Charlotte Punta Gorda Boca Grande Charlotte and Southern Sarasota Counties in Florida.

941-698-1959
www.bergmanroofcleaning.com

 http://www.youtube.com/watch?v=4RNlN3R7CqI



Premium Member Roof Cleaning Institute of America

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Posts: 122
Date: Jun 20, 2013
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Thank you so much Chuck for getting this started , we need one bad for tile, you have a great start , dont have anything to add at this time still a newbe, cant wait to see the finished product , so we can use it out in the field , Thank you Steve (Dabber)

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Premium Member Roof Cleaning Institute of America Certified Roof Cleaning Specialist

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Posts: 2065
Date: Jun 20, 2013
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Chris tucker is the only guy who may more than me. We need his input at least.

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Serving Englewood Rotonda North Port Cape Haze Venice Port Charlotte Punta Gorda Boca Grande Charlotte and Southern Sarasota Counties in Florida.

941-698-1959
www.bergmanroofcleaning.com

 http://www.youtube.com/watch?v=4RNlN3R7CqI



Premium Member Roof Cleaning Institute Of America Certified Roof Cleaning Specialist

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Posts: 657
Date: Jun 24, 2013
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Chuck, the one thing I would work on, and change a little.
Most of us started out pressure washing them, but could see the severe granule loss taking place on the shingles and turning the pressure down didn’t solve the problem.

First off, it takes a certain amount of pressure to remove the black algae – period! So, if it requires say 1000 psi of pressure at the gun tip, which will work on shingles, but not on most tile, then it’s semantics.

 I would change this. You are saying a pressure washer HAS to be used to clean asphalt shingles. We all clean asphalt shingles without a pressure washer.



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Kleen Roofs & Exteriors

1111 Nixon ave. nw

Grand Rapids, Mi 

49534

Kleen Roofs

www.kleenroofs.com

(616)914-9064

Pictures of our work



Premium Member Roof Cleaning Institute of America Certified Roof Cleaning Specialist

Status: Offline
Posts: 2065
Date: Jun 24, 2013
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Kleen Roof and Exterior Cleaning wrote:

Chuck, the one thing I would work on, and change a little.
Most of us started out pressure washing them, but could see the severe granule loss taking place on the shingles and turning the pressure down didn’t solve the problem.

First off, it takes a certain amount of pressure to remove the black algae – period! So, if it requires say 1000 psi of pressure at the gun tip, which will work on shingles, but not on most tile, then it’s semantics.

 I would change this. You are saying a pressure washer HAS to be used to clean asphalt shingles. We all clean asphalt shingles without a pressure washer.


 Good catch! I see my wording does leave that impression. I'll do that change.



__________________

Serving Englewood Rotonda North Port Cape Haze Venice Port Charlotte Punta Gorda Boca Grande Charlotte and Southern Sarasota Counties in Florida.

941-698-1959
www.bergmanroofcleaning.com

 http://www.youtube.com/watch?v=4RNlN3R7CqI

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