Category: roof cleaning portland

Think of having your roof moss pressure washed? We have often heard that “It’s low pressure” it won’t harm the shingles by using more water volume and less water pressure. While the damage to the top of the shingle may or may not be as severe. The damage often lies underneath. Watch what happens when we lightly blow across the shingles simulating a small gust of wind.

Here’s another photo of a composition roof in Portland, Oregon that was Pressure Washed at some point. You can see the massive granule loss associated with aggressive moss cleaning techniques such as pressure washing and wire brushing.

This asphalt shingle roof was treated with our moss killer and left to weatherize over a period of time. Once the moss is treated and left to die the process of weatherization occurs. Dying moss exposed to various the weather patterns help the moss to release from the composition asphalt shingles. Once the moss has had sufficient time to loosen up, it can simply be blown away from the composition roof. This roof cleaning process may need to be repeated a couple of times, but will not create any wear on the asphalt shingles. Please give Portland Roof Cleaning a call (503) 844-6500. Or visit our website at portlandroofcleaning.com