On most homes mold begins to grow at the bottom of the windows at the joint between the glass and window sash frame.
Black mould sash windows.
There are 2 leading contributors to black mould forming around windows or on window sills.
Typically the mold is colored and able to be seen but sometimes the mold can be the same color as the window frame making it very difficult to see.
Mold inside the wall will be black and webbish looking.
Wood around windows even the interior easily gets damp due to insufficient caulking heavy humidity and rain or condensation that forms naturally on glass.
A small amount of discoloration on your windows may be unattractive but is.
Green mold is fairly common in households and is easier to remove than black mold which is less common but can be hazardous to your family s health and needs to be removed by a professional.
How to remove black mold on windows written by shermaine williams on apr 09 2010.
And if the window reveals are redecorated you may consider mixing in some anti fungicide solution in with the paint before it is applied to the walls to prevent future mould growth.
Mold can also form on exterior window stools the outside sills from high outdoor humidity levels.
In my opinion and previous experience going through a horrible mold situation you really must replace the wood and check to see if the mold had grown in the dark damp space between the walls.
Anything that the mold has settled and grown on will have to be replaced.
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How to prevent black mold on windows the type of product that will work for you will also depend on the material the black mold mould is growing on and the environment.