masonry, brick, limestone, and concrete. It may also cause health problems. Conventional cleaning with some acids and high-pressure water can further damage these already weakened... History | Technical Bulletin Until now, pressure washing has basically been the only method of cleaning the exterior of buildings. With this method, there have been significant... complaints about the damage to buildings as a result of the pressure. ReNew Solutions, Inc. has created an environmentally safe and effective cleaning method designed to restore...