Jeremy,
About freezing weather, not a problem where I live, perhaps 4 days a year it goes below 32°.
Now about the algae and mildew, let me ask this of you, if it is on the top of the concrete as it is, to wash it off with hot water only, don't you think it also washes of the sealer?
I am open minded here as if it truly does as it should, and I would tend to think it does even if my other post sounds that way, explain about oil and grease dripping from cars?
Same rules apply? hot water and chemicals to remove it would remove the sealer too, right? If you say yes then what would be the point of sealing the concrete if you would need to clean it monthly anyway?
Explain please, or perhaps Jay of V-Seal might be willing to explain it in langauge we all understand rather then technical words.
Jon
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Jon Fleischer
Oasis Pressure Cleaning
(909) 792-2247
Fax (909) 792-5633