Worried about the rain? Worry no more!A common misconception is that rain causes windows to dirty and spot. Not true. As discussed and dispelled in Good Housekeeping magazine and Martha Stewart Living, rain does not cause windows to dirty or spot.
However, it is a commonly held belief that windows should not be cleaned when it rains because the rain will just make them dirty again. Is this really a fact? Does the rain make my storefront or building windows dirty?
The simple answer is 'no'. It is normal practice around the country for window cleaners to carry on in all weather except storms and high winds. Rain does not make the windows dirty, dirt does. Dust accumulates on the outside of the glass from lawn mowers, leaf blowers, tree pollen, car exhaust, droppings, and many other sources. This dust settles as a uniform layer on the glass. When it rains, the rain drops push the dust into different patterns and after the water dries the dust remains on the glass. This new "mud residue" is now highly visible because it is no longer uniformly spread but is sporadic throughout the pane. Clean glass will stay clean after a rain because once the rain water dries, there is nothing left behind to obscure the view.
When windows are clean the rain will simply run off and the glass continues to remain clean. Rain water is pure water. You can put it directly into a bucket and clean windows with it!
So, with that, we will give you the most generous rain guarantee we've seen in the marketplace yet for commercial storefronts.