If it is slimy or any sort of residue comes off on your hand repeat the above steps.
Fungicide roof cleaning.
You must let the roof dry before a second application of mix.
For over 25 years we ve worked with communities contractors roofing manufacturers the epa to develop the safest and most cost effective solutions to the problem of roof stains and eliminating the need for repeated roof cleaning.
Join the growing number of homeowners communities and contractors that no longer worry about roof cleaning because they choose roof a cide.
I ve never been called to get rid of a spreading mushroom infestation on a roof.
Cleaning due to evidence of permanent asphalt shingle damage caused by high pressure powerwashing.
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But anyway this is what they call it.
Allow the roof to dry thoroughly.
Most of the services we offer that involve the use of a fungicidal washes are done through spraying.
Something that kills mushrooms.
Bleach kills fungus on contact.
Simply mix the bleach and water spread the mix over your roof with a mop and hose the roof off.
One of the most common ways for the application of the fungicidal wash is through spraying.
The western wood products association recommends a solution of 1 part household detergent 10 parts bleach and 20 parts warm water.
If the roof fungi haven t damaged the structural integrity of the roof you should be able to clean it yourself.
Inspect the roof for any remaining fungus.
Spray the affected material thoroughly and use a brush or a sponge to scrub the mold away.
Bleach dry laundry detergent and water are all you need in some cases.