You might be among the vast collective of homeowners with a power washer stowed away in your garage so you wonder can you care for your roof safely by pressure washing its shingles.
Can you pressure wash roof shingles.
For extra cleaning power mix in a non ammonia heavy cleaner like tsp.
Not to mention using a pressure washer from a high place is dangerous.
There is a chance that the pressurized water could damage your shingles.
Roof cleaning contractors go up on the roof and physically wash the roof down.
The concentrated jet will scrape off the small pebbles on top of the shingles and reduce their water repellency which will only make your mold situation worse.
Pressure washing strips the granules from asphalt shingles.
The short answer is no when you search this very same question you ll see the internet shout back with words like never and don t.
This is the best way to clean a roof if you have asphalt shingles.
If you have a consistent problem with mold growth on your roof consult a roofing professional.
Use a sprayer attached to garden hose that s filled with equal parts chlorine bleach and water.
Yes it will make it look sparkling clean but also you ll end up replacing the roof system sooner rather than later.
Pick a cool overcast day so the cleaning solution doesn t dry too fast.
Therefore it strips away years of your roof s lifespan.
Roof cleaning can be accomplished two ways 1.
It s generally not necessary to pressure wash a shingle roof for the purpose of removing ordinary dirt and leaves and pressure washing can potentially damage the shingles coating of protective.
The roof can be physically washed with light pressure or 2.
Never pressure wash your roof if you have asphalt shingles.
The water pressure will remove the granules that are important for protecting your roof.
The damage caused by pressure washing is not immediately noticeable.
Then mix standard laundry bleach with water.
Never use a pressure washer to wash or rinse shingles.
Pressure washing is very effective but may be best for metal or concrete roofs.
The response isn t wrong.
Of course some chemicals can harm your roof as well and the runoff could cause problems with your landscape or parts of your home.
Of laundry strength liquid chlorine bleach and water.