I had made a date with another company but I was talking to a few residents in our community and was informed that had contracted with CamoVets. I called for an appointment and James cane and did a survey and explained your procedure. I liked the fact that chemicals were not used. The "A" team arrived and introduced themselves and explained how they were going to clean my roof. I was very pleased that salt and water was used. I checked my roof about five hours later and was amazed to see the roof was cleaned of all of the black stains. A neighbor came over to inspect the results and he will probably give you a call.
-- Tom C