Mold and Mildew - How to Remove So You Are Able to Paint the Surface

What are Mold and Mildew?

Mold and mildew are forms of fungus – they are microscopic plants that feed on organic matter and reproduce by means of “spores” – tiny seeds – that may be spread through the air.

Mildew grows on surfaces in thin sheets, sometimes spotty in appearance, often black, brown, green, or rust colored, and causes a sour, musty odor.

Mold generally grows thicker and flourishes in hidden spaces such as inside hollow walls and ventilation ducts and under floorboards. So-called “toxic mold” is any of several varieties that can grow very large in hidden spaces and may cause adverse health effects. Removing this kind of mold is a job for professional mold abatement contractors, which may be found in the Yellow Pages under Mold Remediation.

Here, we will deal with mildew and surface mold, which we include under the term “mildew.” Mildew produces ugly discoloration of painted surfaces and may, over time, result in deterioration of the paint film. Although mildew sometimes appears on newly painted surfaces, painting cannot cause mildew growth. Heres’ how to keep your paint beautiful and longer-lasting

Why Does Mildew Grow On Buildings?

Mildew is not very picky. Airborne spores are everywhere, so mildew can grow just about anywhere it finds a source of food, plenty of moisture, some shade and the right temperature. Mildew can be found:

Exterior

-Most often on the north side of a house.

-Under eaves or overhangs.

-In shade from trees or shrubs.-Near areas damp from watering

Interior

-Bathrooms-Kitchens

-Laundry rooms

-Other areas where moisture builds up.

Mildew often resembles surface dirt or staining. To make sure, test the surface by putting a few drops of household chlorine bleach on it. If the surface has mildew, the color will be bleached out in just a few minutes. If the color does not change, or changes only very little, chances are the surface is merely dirty or stained. If you’re not sure or just want to be safe, follow the directions given on the paint can before you paint.

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How Can I Get Rid of Mildew?

Remember that painting over a surface infected with mildew will not solve the problem. Instead, the mildew will just grow under and through the new paint, creating a bigger problem. If you already have mildew growing under a paint film, that paint will have to be removed before you can disinfect the surface and repaint.

Fix Moisture, Ventilation and Shade Problem: Find the source of the moisture that supports the mildew growth and remedy the situation.

Disinfect Surfaces With Chlorine Bleach Solution: In a five-gallon bucket, mix three quarts of warm water with one quarter cup of liquid dishwasher detergent.**** Sponge clean the surfaces with mildew and let stand for 10-15 minutes. Scrub the surfaces to loosen and remove the mildew and dirt. Finally, rinse the entire surface with cool, clear water and let dry.
How Do I Prevent Mildew From Coming Back?

Most importantly repaint with top quality latex paint. Top quality paints will do the best job of protecting against mildew. In general, latex paints are more resistant to mildew that oil-based paints, as oil can serve as food for some mildew. Also enamel finishes are better than flat finishes. For extra protection extra mildewcide can be purchased and mixed into the paint. Also one should wash the painted surfaces about 1 time per year to keep them clean and clear.

****Do not ever mix bleach and ammonia or any product that may contain ammonia. This mixture can result in toxic vapors. Remember to cover shrubbery and wear glove/eye protection.

Source by J W Campbell

Mold and Mildew - How to Remove So You Are Able to Paint the Surface