Pressure washing can be a powerful cleaning method, but it’s not suitable for all surfaces due to its high-pressure nature. Delicate surfaces can be damaged if inappropriate pressure levels are used. Here’s a deeper look at why and how to manage such situations: Stucco: Stucco is a popular exterior finish for homes but is relatively soft and porous. High-pressure water can erode the stucco surface, leading to chips or cracks. It can also force water behind the stucco, causing structural damage or mold growth. When cleaning stucco, a low-pressure wash with a proper detergent is recommended. Laminar Sandstone: Laminar sandstone and other soft stones are particularly susceptible to erosion under high pressure. The force of the water can strip away the outer layers of the stone, which not only damages its appearance but can also reduce its durability. Soft washing techniques, which use low-pressure nozzles and specialized cleaning solutions, are preferred for these types of stone. Aged Wood: Older wood surfaces, such as those found on vintage homes or historic structures, can be fragile. High-pressure washing can strip away protective finishes, splinter the wood, or cause it to swell and warp. A gentle approach with a soft brush and mild cleaning solutions, followed by a low-pressure rinse, can clean effectively without causing harm. Thank you Lancaster Pro Wash for this info!