CH white haze is not going away! - Certified SoftWash Roof Cleaning

Gary P Gelatt · SoftWash Systems Certified Applicator

CH white haze is not going away!

Michael Derose · SoftWash Systems Certified Applicator

did you try rinsing it yourself?

Gary P Gelatt · SoftWash Systems Certified Applicator

Yes, the day after we cleaned it, tried to rinse & re-clean that slope. Still no change!

Tim Teed · SoftWash Systems 5-Star Professional

It will rinse with the rain. I've never had luck going back and trying to rinse with garden hose. When you do multiple coats you are doubling or tripling the amount of residue. With very dirty roofs you are better off going with a stronger mix on the first coat or augmenting with SH.

Brandon Vaughn · SoftWash Systems Pro Staff

Gary P Gelatt wrote:
I recently switched over to CH exclusively on roofs, and amazed at how much easier it is to use, mix and handle. The picture attached is in a community of Garden Homes. I have done approximately 20 homes on this one street over the past 2.5 weeks. Any white haze on the roofs have been rinsed off with the recent rains. However, this one roof has a section that has not wased away. With the SH, it always rinsed off with any rain at all.
Any ideas that you guys have used in situations like this? This last coat was a final touch up on a bad section. My mistake was not rinsing down the roof again after the initial rinse to cool the roof. It was 85+ degrees (hot-lanta).
I'm trying to keep the referrals rolling in!

Gary - Tim is absolutely spot on - it will indeed rinse with rain. Make sure and set your customer's expectations when you sell that there will be some light white powder that will rinse after the first couple rains. If you feel like you are in a pinch and want to clean this stuff off this roof just to appease your customer, you can spray a diluted down mix of vinegar or "truck-wash" and you'll see the residue foam up white and dissolve. Then a light rinse will get rid of it.

Tim Teed · SoftWash Systems 5-Star Professional

what ratio of vinegar do you use and which truck wash have you tried? Our biggest challenge is rinsing the residue off flat surfaces and the solid stained decks and the dark repainted flat aluminum siding.

John Aloisio · SoftWash Systems 5-Star Professional

Tim,

just make sure to rinse and then rinse again, if using a truck wash soap. Most are sodium hydroxide based, which is a degreaser, and can start to break down the oil/asphalt based shingles if not rinsed properly. Especially in hot weather.

AC Lockyer · Administrator

Two Stepping soap is what you need. It is actually acid based. It will remove the haze from anything the CH sticks to. It is used in the fleet wash industry. However I'd just let it rain some more.

AC

Chris Wegner · Junior Member

i get that on tile roofs when i clean them.....i always let the customer know that it will wash off with 2-3 HARD rains. (not light rains) It comes off no problem

Kristofer

Gary P Gelatt · SoftWash Systems Certified Applicator

I went out yesterday and tried Brandon's idea with the vinegar mix. We also had a heavy rain blow in last night. I will be out there tomorrow on another job and will check the status of the white haze.

Brandon Vaughn · SoftWash Systems Pro Staff

Tim I use Landa Supernova which is sulfuric acid based truck wash. Also use it to brighten aluminum at higher concentrations.

Ratio is 20:1 or more. It is very concentrated. You'll see the CH residue literally foam up and dissolve away. It has saved my bacon on a couple jobs where I rushed too much and left residue behind.

I use vinegar at a 50:50 ratio on more delicate surfaces, brush and rinse.

AC Lockyer · Administrator

Brandon Vaughn wrote:
Tim I use Landa Supernova which is sulfuric acid based truck wash. Also use it to brighten aluminum at higher concentrations.
Ratio is 20:1 or more. It is very concentrated. You'll see the CH residue literally foam up and dissolve away. It has saved my bacon on a couple jobs where I rushed too much and left residue behind.
I use vinegar at a 50:50 ratio on more delicate surfaces, brush and rinse.

EXACTLY! I just couldn't remember the name of that soap Brandon.

AC

Gary P Gelatt · SoftWash Systems Certified Applicator

News Flash...applied Brandon's secret mix of vinegar to the haze. Went by today...everything looks great!

Thanks Brandon for the advice!