Removing lichen fully using this method is nearly impossible not to mention time consuming especially if you are dealing with a large surface like a roof.
How to remove lichen from colour steel roof.
Spot spray the lichen within each section.
Lichen can be really tricky to remove because it grips strongly onto the surface.
Lichens and moss accelerate shingle deterioration by loosening shingle granules and exposing the asphalt and fiberglass base materials.
Photograph of lichen on a colorbond steel roof.
The main reason other outdoor cleaners fail to kill lichen is the application has not saturated the growth and it is drying out to quickly.
I quite like the look of the lichens it reminds me how clean the air is here.
You also risk the potential of accidentally damaging the protective top layer of your roof shingles while trying to remove it with this method.
They protect the base materials from sunlight and weathering.
Lichen is a growth incorporating both fungus and algae.
Once the lichen has been killed it will breakdown and be washed away by rain.
Lichen avoids galvanized steel copper and zinc because these metals work as a natural biocide.
When leaves and other material collect on your roof a perfect bed is formed for moss and lichens to grow.
Some of the product remains on the surface reactivating for the fi rst few rainfalls.
You will notice a slight colour change in most lichens once bio shield is applied as it penetrates and kills the lichen.
About five years ago i noticed a few patches of lichens growing on the north side of my roof.
Water blasting colour coated roofs to remove fungal moss and lichen growths may damage the surface.
Photograph of a portion of a colorbond steel roof showing heavy fungal growth.
All building components may be susceptible to fungal growth if the conditions are right.
The granules aren t just there to color the shingles.
The pressure required to fully remove lichen will remove the protection provided by the oxidised surface layer reducing the thickness of the coating and exposing the un oxidised paint film to sunlight and weathering.
So if you attempt to remove it with a hand tool you may accidentally remove the protective top layer of your roof shingles as well.
Remove moss and lichen from your roof with vinegar.
Moss itself is a plant while lichen conisist of a fungus and a photosyntheizing plant living together.
Leave for 15 20 mins while it is still damp.
How to remove lichen on roofs use either wet forget 5l concentrate or rapid application using the new reach nozzle visually section your roof off into areas.
The company rep left a quote with my wife for cleaning the roof.
Can be used on a variety of roof surfaces including clay tile concrete tile decromastic colour steel super 6 slate synthetic tiles polycarbonates.
Its appearance is quite distinctive.
