Did a certified non-pressure roof cleaning in whitehouse ohio today December 2. I was 36 degrees and the job turned out great. Hot water was used though.
For the first few years in business, it only became too cold AFTER I stashed enough money to sneak through the Winter months, Ha,Ha,.. Up until then though it was always plenty warm.
But I agree with a few others here,..it's not a matter of the product not working,..it's simply a matter of working with everything being cold that makes the biggest difference. But with that being said,..at least the vegetation is easier to deal with.
Did one yesterday December 3, It was around 40 when I started everything worked o.k. Seemed to take a little longer to react. Everything turned out good though.
That's one thing I don't miss about Jersey. I may miss the food and people, and some of the places but I don't miss the cold. It gets cold down here but only for a week and nowhere near what it get up north.