1l moss and mould killer to 10l water.
Lichen on roof nz.
Where lichen growth is present it should be removed.
Lichen and green moss growth on a slate roof.
Firstly lichen holds moisture against the surface.
Scrub the moss and lichen from the roof with a long handled scrub brush.
Allow the lichen to dry for 1 to 2 hours the key to successfully cleaning and removing lichen is to apply the bio shield solution to saturate the lichen through to the base of the growths and ensuring it does not dry out to quickly.
Chemical treatment is recommended.
The company rep left a quote with my wife for cleaning the roof.
You can also use organic super sulphur as a protectant in spring autumn winter and or at first sign of lichens.
When leaves and other material collect on your roof a perfect bed is formed for moss and lichens to grow.
In your garden sprayer mix 1 part moss and mould killer to 10 parts water eg.
Spot spray the lichen within each section.
It can then be scrapped or brushed off or left to weather off over time.
Allow the bleach solution to remain on the roof for 10 to 15 minutes.
Apparently the lichens on the south side of our coloursteel roof can cause damage and needs removing every few years.
Lichen can be a tough growth to remove due to the symbiotic relationship between the fungus and algae.
While this is a popular approach a great deal of time and work must be put in to remove lichen this way.
Remove moss and lichen from your roof with vinegar.
Spray on affected surfaces including tree trunks and leave for several weeks for lichen to die.
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.
When this moisture is exposed to cool temperatures it can then freeze causing the roof shingles to bend warp shift or crack.
How to kill moss mould and lichen on roof.
Physical removal is difficult to achieve completely and recolonisation is usually rapid.
Moss itself is a plant while lichen conisist of a fungus and a photosyntheizing plant living together.
I quite like the look of the lichens it reminds me how clean the air is here.
New zealand steel publishes a formula for batching a 2 sodium hypochlorite solution to be used for this.
The build up of lichen on your roof may also affect the gutters ability to manage rainfall.
Many people try to remove lichen by brushing and scraping it off with abrasive tools.
Do not let the bleach solution remain on the roof any.
Mosses and lichens grow in damp conditions.
Apply the bio shield to saturate the lichen and stay wet of 10 to 15 minutes.
From this the life span of your roof may drastically decrease.
