Pressure-washing in winter

I'm the prez of an HOA near Raleigh, N.C. who's spoken with local pressure washing companies, who have confirmed that they can indeed pressure-wash in the winter (provided it's above freezing).

Well, we have a number of open pressure-washing violations and my homeowners are pushing back because:

-- people travel in December / it's the holidays
-- too cold outside (it's 68 right now)
-- will just have to do it again in the spring when the pollen hits
-- no one does outdoor stuff in winter

In my experience, pollen rinses off during the next rain shower and it's only a problem if the siding was dirty before pollen season hit.

How do my fellow directors/boards handle this type of issue? Do you put pressure-washing violations on hold until the spring? Or are homeowners required to do it year-round, weather-permitting?

(Mind you, I'm not talking about slightly dirty homes, I'm talking about the mildewy green stuff that looks like something out of a bad scifi movie.)

I think it would be reasonable to contact homeowners who need to pressure wash during the winter months and allow the house washing to commence after Spring pollen season, regardless of the siding mildew. You don't see much pressure washing, in NC (Raleigh) during the winter months and not before pollen season.

I would not press the issue of pressure washing in the winter, If you were press the issue and you were taken to court by the homeowner you would be on the losing end because common sense prevails. I would only pressure wash in spring and summer months.

We would never pressure wash at any time of the year. It drives moisture into siding and perhaps further, and has other bad effects.

There are other ways to remove mold and algae, such as house wash products (the best ones we tested used added bleach) or "Wet and Forget" (the best overall product we tested) or perhaps a competitor such as Spray Once (not tested).

We would never require pressure washing due to the harm it can cause. I would recommend that your association test various products and make the test results available to your owners.