Soft washing and pressure washing are two different methods used for roof cleaning, and choosing the right one depends on your roof material. Soft washing involves using low-pressure water combined with specialized cleaning solutions to remove dirt, algae, and moss without damaging the shingles. This method is recommended for most residential roofs, as it is gentle yet effective in eliminating organic growth that can cause deterioration over time.
On the other hand, pressure washing uses high-pressure water to blast away dirt and debris. While it can be effective for some surfaces, it’s generally not recommended for asphalt shingles or older roofs, as the force can strip protective granules and lead to damage. Professional roof cleaning Washington DC services typically use soft washing to ensure a thorough clean while preserving the integrity of your roof.