Sorry I forgot to add that to my post.
Mark,
I wanted to follow up with you and see how that job went? Iām new to roof cleaning as well, and have only done a few simple roofs so far. For you SH, its way better to buy it by the drum, it seems like a lot but youāll go through it pretty quick. Iām buying mine right now from a janitorial supply company in Portland, or for $135 for 55 gal.
I used to put my special design product XTP on roofs when done. SH N lavender was all it was. Great results
Rule of thumb is 3 parts water 1 part SH, however, this is vague. Your mixis extremely important, to weak and youāll have to apply more and spend more time rinsing (especially cob webs), and too strong and you could damage plantās, grass, and even oxidize paint. We buy ā12.5ā % SH and use a 3% mix on roofs, 2% on siding, 2.5% on Brick an porous surfaces. Any lower then that and youāll have issues. Make sure to do your math correctly and more is always better. If your bad at math, get a 100 Gallon tank : ). Also, donāt give the SH manufacturers credit, always do your measurements 1% under the advertised percentage, so 12.5% would at best be 11.5% or 11%. Good Luck!
I dont understand your math, please explain how you get your numbers
This thread should help to clear it up.
http://pressurewashingresource.com/vBulletin/residential/2029-downstream-ratio.html
Thanks but I wanted to hear what this other guy has to say about ratios.
2% to siding is very hot and 3% to a roof is not going to clean anything on a roof
You guys must have some nasty stuff on roofs up there in the northern states. 10 gallons of 12.5% , 40 water and 32oz of greenwash cleans about half of the roofs we do. We bump it up to 15 gallons if theyāre really bad. But the bleach weāre getting may be hotter than advertised. Weāve got a great supplier.
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3% wonāt work on most roofs up here. 6% all day or risk spraying twice, other thing is regular cleaning isnāt common up here.
These days Iāve been doing 50/50. One light spray and be done with it. Iām tired of reapplying on every roof. I just spend a little more time rinsing.
With that 50/50 are you getting any discoloration on composite shingles?
Hey guys, Iām newly self-employed in the wash industry, but Iāve got three years under my belt roof washing and house washing with a small company. I just got my trailer setup with a four gallons per minute machine, general pump reel with 200 feet of gray hoseā¦ I just got my Roof wash equipment in, Fatboy pump, clear poly braided hose 200 feet, all my wands and spray nozzles including a couple of 4 bangers. The only Tanks I have right now is a 65 gallon leg tank. Iām trying to get a good starting recipe for roof wash and house wash in my 65 gallon tank, I know thereās a lot of variables involved but just a starting point for me would be great regarding how much Sh versus water in my 65 gallon tank, I donāt know about soaps or anything like that but I was advised to pick up roof snotā¦ I have a 5 gallon bucket. Thanks for any info you can give me
So questionā¦is down streaming SH not effective enough to clean a roof? More specifically, my roof. Itās about a 1500 sqft shingle roof. Currently, Iām only running out of a 5 gal bucket with 10% SH. What kind of mixture will I be looking at, if itās even possible.
Iv read lots of post saying it wonāt work bc ur mix will not be strong enough. If u wanna do roofs must ppl use a 12v 5.5gpm - 7gpm pump with around a 55 or 65 gal mix tank. U can find lots of this info if u search roof washing. I know this bc I have been thinking of doing roofs next yr and have been reading and doing my own Lil cheat sheet for mix with 10% sh. I canāt help u with a lot of the equipment stuff bc Iām learning myself
Thank you for your take. I appreciate the insight versus other people getting ticked saying, āsearch search search,ā rather than just providing a simple yes or no with a brief description. Btw, our cheat sheet looks pretty good.
Ur welcomeā¦ U still need to search though u can find just about every answer u need. When u find a thread with the topic scroll up and down u can also find things u can bookmark to come back to. I had to go in like 3 threads to find just one answer.
Laziness and lack of initiative do not suit s business owner. Every thing you needed to know can be found in 5 minutes of searching. That info is provided by guys who have spent countless hours experimenting, messing up and and starting over until they figured it out. Then, without fail, sone new guy comes along, who will probably be or of businessesin a year, and gets offended when told to search. If this isnāt you, great. If it does describe you, who has spent 1 hour reading posts on this forum, I would suggest you quit typing and start reading. Or better yet, go practice your trade on you own roof ans experiment. Get mad or start learning. Options are yours and your personal character will dictate the choice.
I think you misunderstandā¦I am not offended by being told the searchā¦As I am not in the market for purchasing softwash equipment, I felt that a simple yes or no for my initial question was enough as of course, time wasted being inefficient. So I will apologize for sounding ālazyā for asking a question when, after searching, could not get a conclusive answer as to the WHY. As Iām sure most of you would agree, sometimes a āyes/noā is not enough, but instead want to know āwhyā. So again, my apologies for not seeming as if there is enough initiative behind my questions. And also, I will apologize for the seemingly and equally a-hole remark in my previous post.