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If you are doing a roof for, Lets say $400 and you tell them you will do ther whole house for $ 200 there gonna doit. I run 20-25% But most of the time im to lazy to switch tanks i do the 1st coat on the roof and find my self just going for it. But only on vinyel siding it don't work on aulim. I spray roof mix on 1 side let sit for 5 min then rince for 10 min by the time im done the house i need verry little for the 2nd coat on the roof never killed a bush but still feel a little funny abought it would not doit with the roof mix on a prize winning landscape if you know what i mean. but most of the time if i have 3 for the day ill say no can't doit.

I charge between 12 and 20 cents per square foot.

We use SH and downstream it through our pressure washer, but I'd say use just enough SH to where it takes a few minutes to remove the dirt/mold, etc.. 10% is probably fine, but you may be able to use less to save $$ and reduce risk of plant damage.

VA Roof Washer wrote:

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Seems I am having a run of homeowners who do not want the roof cleaned but only the siding.

Two questions.

 

1.  How do you price siding.  I have been guestamating the amount of time it will take us and charging $125 per hour.

 

2. Not a big fan of SH on siding, mostly for the plants but what do most of you guys use?  I have been using a 10% mix.

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10% is very weak for softwashing? 

A commercial pressure washing machines chemical injector puts more than that out.

I suggest 20% and just keep the plants watered down.

Chuck