What Causes Brown Stains On Vinyl Siding

Vinyl siding may appear maintenance free but if you are the proud owner of a home with siding you have already learned that it simply isn t so.

What causes brown stains on vinyl siding.

They are hard and when you pick them off they leave a small brown stain. I have black spots all over my vinyl siding thousands of them about the size of a ballpoint pen tip. When water runs through the wood and wall sheathing it picks up tannins in the wood and leaves dark stains on the. They just won t let go.

They are even as high up as my gutters. Vinyl siding is susceptible to stains just like any other housing material. With the addition of a pressure washer to blast away any remaining hard water. That much is for certain.

It needs to be properly cleaned and stains removed to keep it from looking dirty and dingy. Since then there haven t been any issues with the siding however a week ago i noticed a bunch of brown streaks stains on the east side of the house. A major cause of vinyl discoloration is the oxidation of the chemicals in the vinyl over time due to exposure to sunlight and acid rain. Hard water stains are ugly but not impossible to remove.

Distinguishing the type of stain found on siding is useful in deciding on the cause and thus the cure or prevention of staining. This can potentially create a dull and chalky appearance. Simple bleach solutions applied to the stain and then brushed away will return the vinyl to a state close to its original look. If you have new vinyl siding that s still shiny and you know that the spores haven t been stuck on for more than a few days you might be able to power wash them off.

Over time and through repeated changes in weather vinyl siding will attract and develop mold or mildew spots especially in north facing and other shaded areas. Fast forward a week later and the stains have reappeared in the same spot. Vinyl siding requires care to keep it looking its best. It seems they are only on the siding above my mulch beds.

The spores dotting your house may not fit in with your redecorating plans but they won t cause any structural damage or grow there. This article discusses common causes of stains or discoloration found on vinyl building siding. Dirt from rain splash up algae lichens mold moss or even smoke or chemical stains have different causes and different preventative measures. I thought it was bird droppings at first so i power washed it off.

Vinyl siding stain diagnosis. The stains on the siding are the result of moisture.