However while the polymer material may be able to withstand high winds and harsh uv rays it is still susceptible to staining including a green discoloration caused by one of the following.
Vinal siding bleeding.
Usually found on contractor grade siding.
Dirt from rain splash up algae lichens mold moss or even smoke or chemical stains have different causes and different preventative measures.
The right way to clean vinyl siding dip the cloth or brush into the solution and scrub the siding until you see noticeable changes.
To prevent streaking start at the bottom and work up towards the top.
Since it was first introduced in the late 1950 s vinyl siding has gained popularity due to its versatility strength and ability to weather the elements.
A chalky white substance on your vinyl siding and trim is caused by oxidation which occurs most often during damp or wet weather.
Vinyl siding stain diagnosis.
This article discusses common causes of stains or discoloration found on vinyl building siding.
The spots or discolor on the vinyl siding are from nail heads behind the vinyl siding.
Distinguishing the type of stain found on siding is useful in deciding on the cause and thus the cure or prevention of staining.
Rinse with water from top to bottom often as you go to avoid uneven drying and spotting.
The sun will heat up the nail heads and discolor the vinyl siding.