Most contractors don t recommend pressure washing or power washing a roof.
Power sparying roof.
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Roof coating sprayers for residential to commercial jobs.
Start with a medium pressure spray pattern and adjust from there accordingly.
Instead soft washing with a garden hose is least likely to chip dent or crack the tiles or panels.
Of laundry strength liquid chlorine bleach and water.
Always stand on a dry area of the roof as wet shingles can be very slippery.
Professional roofing contractors prefer graco roof coating sprayers for their versatility durability and superior performance.
This is the best way to clean a roof if you have asphalt shingles.
This is because the water comes out too forcefully and can damage the material.
Use a sprayer attached to garden hose that s filled with equal parts chlorine bleach and water.
Many times these seals are already broken from the moss and spraying up the roof may actually blow the shingles off.