We have a 100 year old victorian with wood on the outside. The north
and south side have patches of dark mold growing (looks like dirt)
which I removed with a bleach solution a few months ago. Now more is
appearing on these sides of house. Any suggestions? Do I need to
have the entire sides washed with bleach solution? Will this be an
you could always try T.S.P (tri-sodium-phosphate). it works pretty darn well
as a cleaner, i use it all the time on my deck, concrete, etc...
home depot has premixed T.S.P that really does the trick IMHO.
On my house I used spray bleach, worked great. Rinsed with nozzle on hose,
afterwards. Mold/mildew may signify leakage problems along wall, or thru
roof, especially if the stuff returns. Once I re-roofed, repaired gutters,
and improved perimeter drainage, the mold never returned.
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