Here was another challenging job in Lake Oswego. This is a customer of ours who’s home is covered in pine trees. Moss build up like this can happen in a very short time in Lake Oswego. We applied a mild cleaning solution to help with the removal of the moss as well as putting a protective layer on the concrete to keep it cleaner longer. A job like this can take the typical homeowner roughly 2 days to complete as moss can be challenging to remove from aggregate concrete. Our total time on this job was about 3 hours which also included the front driveway and walks.