Clean It Up
UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: peekeclean on September 02, 2009, 09:32:02 pm
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Anyone come across brown and yellow spots that just wont come off with brushing and TFR? Only seen it on plastic roofs but it looks like a type of mould thats bonds to the roof?
any help?
thanks joe
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Lichen?
(http://www.elkhornslough.org/newspages/lichenpix/3elm-lichen.jpg)
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could be burns from fire embers or fAg burns....
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Anyone come across brown and yellow spots that just wont come off with brushing and TFR? Only seen it on plastic roofs but it looks like a type of mould thats bonds to the roof?
any help?
thanks joe
Yep! its Lichen and needs to be scraped off and then scrubbed but even then stains may be left behind.
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yep lichen! I come across this now and then. Always tell the customer before I start that is leaves a staining on the roof and they always accept that. If you get it off, great, it is a bonus for the customer.
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i have stuck an ice scraper to a angle adapter and this gets it off,just soak first.
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ok now i know it Lichen,but what is Lichen and where does it come from??
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Lichenstein ?
oops sorry i'll get me coat
Ross
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ok now i know it Lichen,but what is Lichen and where does it come from??
My knowledge of lichen is somewhat limited, however I would deduce from looking at it through a microscope you could deduce that Lichens are composite organisms consisting of a symbiotic association of a fungus (the mycobiont) with a photosynthetic partner (the photobiont or phycobiont), usually either a green alga (commonly Trebouxia) or cyanobacterium. The morphology, physiology and biochemistry of lichens are very different from those of the isolated fungus and alga in culture. Lichens occur in some of the most extreme environments on Earth—arctic tundra, hot deserts, rocky coasts and toxic slag heaps. However, they are also abundant as epiphytes on leaves and branches in rain forests and temperate woodland, on bare rock, including walls and gravestones and on exposed soil surfaces (e.g. Collema) in otherwise mesic habitats. Lichens are widespread and may be long-lived; however, many species are also vulnerable to environmental disturbance, and may be useful to scientists in assessing the effects of air pollution, ozone depletion, and metal contamination. Lichens have also been used in making dyes and perfumes, as well as in traditional medicines.
Hope that helps :P
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wtf does that mean ? have you just ate a dictionary ;D
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No dictionaries tend to leave a bad taste in the mouth :D
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wtf does that mean ? have you just ate a dictionary ;D
He googled it and copied it,right ;D.....................................
Or is he a profesor in reality :o :o :o :o