Certainly it can be mold, yet not be a leak issue.
Consider that the roof takes the WET that not only falls, but SITS, and that induces mold growth, no matter the substance of the roof.
Certainly a shingle roof is more attracting simply because of its texture.
Oxidation also occurs as well as general degeneration of any shingle.
Pressure washing can help, and unless the roof is terribly ugly, and neighbors are complaining, OR if it happens to be white, I'd suggest cleaning, once a year.
That said however, I've experienced roofs and customers that have never bothered.
It also happens when a roof is covered fully or partially by tree branches, promoting damp conditions in that the SUN can't dry the roof, when it does appear. Perhaps tree trimming is in order?
Not knowing the age or condidtion, or substance of the roof, I suggest that if there are no visible signs of leaks, a simple cleaning will help,,, DO NOT pressure wash from bottom to top,,,always begin at a peak and spray down.
Rev. Steven
2006-09-27 03:57:08
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answer #2
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answered by DIY Doc 7
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probable some variety of mould or fungus. it really is why i tips my sufferers do now stay unsleeping with their dentures in. all sorts of issues can develop there. that's not fungus--maximum elementary fungus is Candida, it really is white. yet when the denture is continually in there it should be stained through chromogenic bacteria black, brown, eco-friendly. i have even seen orange. attempt scraping the stuff off the roof of your mouth gently. If the floor is pink and raw even as think ofyou've got a yeast an infection (Candida). some prescription antifungals will seem after that. The denture should be heavily wiped clean--each and every each and every now and then the antifungal utilized to it too to dodge reinfection. Then attempt to depart the denture out at evening if plausible. Steve Bornfeld, DDS
2016-10-16 02:32:18
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answer #3
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answered by carrilo 4
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