All you need to know are the proper way the right tools to use and the right cleaning product.
How do you clean a roof.
Start at the lower portion of the roof moving up as you clean each lower section.
To clean a metal roof wait for a dry overcast day and make sure you have a partner to help you for safety reasons.
As you continue rub gently don t scrape scour or pound on the roof and work in one small section at a time to avoid ripping cracking or breaking the shingles.
Professional roof cleaners charge hundreds of dollars.
Just spray it on and leave it.
If you feel confident about performing the work yourself be sure that the roof is dry wear rubber soled shoes and use a safety harness to prevent yourself from falling off the roof if you slip.
When you re ready to get started spray your roof using a garden hose with a spray nozzle attachment starting at the top of the roof and blasting downward so the dirty water runs off the sides.
With most good cleaners that s all you need to do.
Clean your roof only after determining that you can safely walk its surface.
If the slope is too steep to easily traverse or if your house is more than one story you should hire a pro.
Here s how i do it.
Cleaning roofs is slippery work.
Spray the cleaner on a section of roof and let it sit for about 15 minutes.
You can do roof cleaning on your own.
It will rinse off the next time it rains.
That way you always stand on dry surface and reduce the chance of slipping.
Don t use a.
The bigger the roof the more hundreds you ll spend.
And they have to repeat the cleaning every few years.
Keep in mind that those roof algae is more than and aesthetics.
Pick them up with your hand use an air blower or gently sweep them off with a broom.
These roof algae are considered to be a living thing that can actually eat up your roof shingles.
Working up on the roof can be a dangerous task to say the least.
If you do get up on your roof wear well fitting shoes with slip resistant rubber soles and be sure to don eye and skin protection.
Before you clean stains you ll have to climb up onto the roof and take off twigs leaves and anything else that would get in the way.
So you may want to have this job done by someone who has experience working up high.
I mix up my cleaner in bug sprayer container and spray it all over the roof.
Use the sprayer to saturate a strip 3 feet high x 10 feet wide.