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Painting & Wallpapering/Exterior paint problem


A little over a year ago, before repainting my house, I replaced 8 4x8 sheets of T11 on the south side. I primed with Kilz latex and painted with 4 coats of Valspar Storm latex. The siding may have been greener than I thought because a couple of months ago mold started bleeding through sections of the new siding. I cleaned it with a commercial mold/mildew remover, let it dry for a week and then repainted. It is now bleeding again and I am running out of ideas. Maybe prime with an oil based primer...can I do that over latex paint and expect it to be effective? Any suggestions you can give would be greatly appreciated. Thank you.

Using a garden sprayer I would apply bleach or chlorine diluted with water 50%, rinse before drying, let it dry 24 hrs., and then use an oil based primer (Benj.-Moore Fresh start) with mildewcide added by paint store.  Roll 1-2 coats on and this should take care of it.

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Joseph Dutra


Specializing in problem solving paint issues with new construction and restorative coatings. I am familiar with most brands and also specialty products.


I started painting in 1979 followed by forming my own company in 1983. I have been working with both residential and commercial projects and enjoy both. Recently (4 years ago) I opened a shop in Pacific Grove, specializing in cabinet, door, and window finishes for new construction.

High school diploma

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