It may be from a plumbing leak a roof leak or a severe lack of ventilation.
Fungi growing out of siding.
The next picture is a heavy accumulation of fungus again at that vulnerable lower edge.
Mushrooms growing on inside window frame.
Small gray or darker round spots on siding that are about 1 16 in individual diameter particularly if the spots are slightly raised may be artillery fungus a mold spore.
Fungus is the cause of dry rot which is one of the most serious defects that wood can develop.
Fungus repair on wood.
Unlike mold this type of growth is mainly cosmetic and can be removed using minimal force and a few basic materials.
I know that mushrooms are just the fruiting body of the fungus or the tip of the iceberg.
Mushrooms growing indoors present a classic sign of a moisture problem.
The third picture is what we need the mycologist for mushrooms are growing on the siding and that is never a good thing.
This article describes four common types of fungi growing in landscape mulches in the eastern united states.
I would remove the trim and check it out.
The fungus grows by consuming wood fiber and the wood becomes soft and punky.
The algae may appear brown or green in color and remain damp diminishing the appearance of your home and spreading out over time.
In some cases there s a tree shed or porch roof that keeps one side of the house from receiving sunlight.
Mold and other fungi thrive in dark places so if part of the house is constantly shaded it s more likely to develop a fungus problem.
I read somewhere that oyster.
Moisture and dirt aren t the only culprits when it comes to mildew and mold growing on vinyl.
This first photo is a heavy buildup of algae or fungus call it converting to green building.
You will not.
Mushrooms slime molds bird s nest fungus and the artillery fungus.
Correcting the moisture problem is the first step in the eradication procedure.
Bird s nest fungi mycocalia nidularia nidula cyathus and crucibulum spp sphere throwers sphaerobolus spp and shotgun fungi pilobolus spp are three separate groups of fungi with many similarities.
Getting rid of this source of shade can help prevent mildew or mold from growing on vinyl siding.