Good job! I bought a bottle of swimming pool algae remover a while back. I already had the pressure washer and the foam cannon. After watching this, I can't wait to try it out. Thanks
@@tribulationprepper787 did you rinse it off after? if not how long did it stay foamy on the roof. did you use SH? if so did you only put sh in the bottle?
In the future, try to buy non Ammonia based surfactants such as Dawn. To use homeowner grade soap to save a buck, try to use Gain or some type of laundry detergent that doesn't have NH4 in it because it makes a gas when mixed with bleach. Laundry detergent should be even more sticky, allowing the bleach to sit and dwell even longer, making it even more worth your while. Otherwise very savvy work, very impressive sir.
U could also mix say 20 l of the solution in a tub, leave it on t ground and let the pressure washer suck it up using the other outlet on t pressure washer
Whatever you do, don't "paint" yourself into a "corner". You don't want to have to walk over the slippery stuff just to get down off the roof. Plan ahead.
Generally good advice, but I do professional roof cleaning for about the past 10 years and it does not make sense, but I have better traction on a wet roof than a dry roof. My buddy that has been cleaning roofs for about 20 years has told me the same thing. Odd, but true.
@@Troy-Echo I've been on my roof and, yes, you are correct regarding just plain water. Dry is better footing, but I don't know what that mixture would be like. I know algea is slippery.
@@virginiamoss7045 I have to disagree with the dry is less slippery comment in most instances. I've been on roofs for about 9 years doing roof cleaning and I thought dry would be less slick, but my buddy who has cleaned roofs for 20 years now said to me about 10 years ago when he was allowing me to work with him and see what it was all about, and he mentioned that he felt a roof was less slippery when it had a coat of roof cleaning mix applied. Obviously if you have REALLY thick algae, lichen or moss that is going to be more slippery and even come loose underfoot, but since he told me that I've paid attention and I have to agree a dry roof is generally more slippery. The most slippery roof I've ever been on was about 75% covered in moss. Usually I spray from the top down, but in this case I worked from the bottom up so I wouldn't have to walk over saturated moss while working back towards the ladder.
Would love to see more vids of this process that you developed an how you improved it. I love the idea of using a foam cannon as it seems to simplify the process more to my appreciation. Thank you so much for sharing...please update
really haven't changed up much. I did use "HTH Algae Guard " for swimming pools with a tablespoon of joy dishsoap as the surfactant in the foam cannon on my neighbors roof. It worked great as well. However it did take a few weeks for it to kill off the algae. But it looks great!
Shawn H Thanks so much for the response....Did you also rinse this off, or was it just left to marinate over time.....I really appreciate this info, as I’m going to go into testing phase.....I will look into HGH at my local pool supply tomorrow
Hi Shawn, I like to spray zinc suplite at 3lb per 5 gal. Can you control the mixture concentration with your foam cannon? How about in term of shooting distance, as I would like to spray a big roof area without moving the pressure washer on the ground? Thanks for your excellent video.
Too funny! An acquaintance of mine in the Portland area has a video of him spraying the exterior of a gym, and in the "before" shot, the sign was blue, but in the "after" shot, the same sign was white. It was simply the light behind the transparent cover was white in that shot instead of blue, but I still picked on him similar to this dog. :-/
How did you get so much foam from the cannon. Mine seems to barely let it out. And i have it all the way to turned to the plus side for full extraction
Mine did same thing and I have two different models of foam cannons Turn it the opposote way all the way.. I was doing a house today and wasnt shooting notta . Decided to go all the way minus and BAM! Foam galore ..and I use Dawn Blue
Technically, yes, but I do professional roof cleaning and on a roof this size, using professional level surfactants I'd use about 30-40 gallons of mix on this roof, so trying to use a garden hose sprayer would take forever. Plus at the peak setting it only would put out about 1% bleach, which would not be enough to be effective against these stains. I'd probably use 15-20 gallons of 12.5% bleach on a roof this size to give it a proper cleaning which would remain clean much longer.
@@tribulationprepper787 What's facebook? LOL. I have a FB account, but I've not logged into it in YEARS. Their security SUCKS. Germany blocked FB from their entire country for a while because FB was so weak on security or they were simply passing out your personal information left and right. For example, one issue Germany had was every time you clicked the THUMBS UP icon, it was sending your personal information. it was years ago so I forget the exact details, but I do not use FB at all anymore. Google was asking for so much info when I made this account I got fed up and just gave my name as what you see here. Too many companies want you to give so much personal information just to register for a stupid account. Sorry, nobody needs my personal information that badly. Aside from work, I don't think I've given my real name, address, birthday, make of my first car for any account, ever. Once your information is out there, it is there forever. Why make it easy for your accounts to get hacked? If they steal my birthday and try to make an account, it won't work. Name, good luck! Heck, about 5-6 years ago the Office of Personnel Management (OPM) for the government got hacked and lost the personal information on something like 4 million records, and the hack went on for about 6 months before it was caught, after the fact. So, no, I do not trust ANYBODY with my personal account information. Big brother digs too deep into my privacy as it is.
@@webcrawler3332.....just don't hold foamer close to shingles or whatever you're cleaning...BACK OFF a ways ....you only need to push your product over the area needing cleaning. It will gravity fall onto the shingles.
Just as a heads up don't waste your money on outdoor bleach the concentration is the same a normal household bleach at a fraction of the cost. At most you'll have a concentration of 8.25% Sodium Hypochlorite which is what kills the mold and mildew. If it's higher than that percentage then it is considered Chlorine. Honestly the dollar store bleach is just as good at cleaning a roof as the $10 Clorox outdoor bleach for a tenth of the cost. It's shady marketing for the unknowledgeable customer your basically pay more money for the same exact thing that's in the laundry aisle for cheaper.
@@jeepsblackpowderandlights4305 well technically depending on how much water to chemical ratio your machine is pulling, you could make a lower concentration bleach work as good as 10 or 12.5% SH. It just depends on how much bleach you can get your setup to pull
The bleach won't, can't speak for the surfactant. This is the recommended way to properly maintain your roof, using bleach / Sodium Hypochlorite to kill organic matter on the roof eating away at your shingles.
In most cases I would agree 100%, but since Dawn is a detergent and detergents break down petroleum products and asphalt roofing is a petroleum product, first, you should never use Dawn on asphalt, second, Dawn should never be mixed with bleach as the chemical reaction releases tons of chlorine gas (think mustard gas from WWI and WWII and trench warfare), and third, using a proper asphalt safe surfactant, mother nature is much better at rinsing than the 3 or 4 gallons per minute you can get out of a residential water spigot. A few hours of a gentle rain will do so much better than trying to spray with a garden hose nozzle for several minutes with residential water pressure.
Dawn says right on the back of the bottle, DO NOT MIX WITH BLEACH, which is because the main ingredient is ammonium laurel sulfate and ammonia reacts badly with bleach. Learn to read before spouting off harmful information. That roofer is an idiot that knows nothing about the chemistry behind roof cleaning. Tell him to take some professional classes before presenting himself as an authority on roof cleaning. Mixing Dawn with bleach causes a chemical reaction that releases massive amounts of toxic chlorine gas, just like that mustard gas used for trench warfare in WWI and WWII. That is why you see so many professional roof cleaners wearing an N95 or better mask, even when using surfactants that do not react with bleach.
@@eddiestakes807 Yep, that's in the info I stated - just like that mustard gas used for trench warfare in WWI and WWII. I've been telling these fly by night weekend warrior chlorine cowboys for the past decade about the harmful effects of mixing bleach and ammonia based products. There is this one idiot I've mentioned it to many times, and he keeps on doing it, and he spouts off he's not sheep and he can think for himself. Yep, that statement definitely makes it safe to do then LOL.
