Pressure Washing in Whitby: White Vinyl Siding Cleaning

All the other three sides of this vinyl siding house cleaned up easily.  The reason is that those sides of the house are exposed to the rain and elements.  For the most part, the only materials that accumulate on the vinyl siding and eaves are organic: Mold, algae, etc…  And this comes off easily with our initial chemical wash and rinse.

However, the South side is different…

Because the front entrance of the vinyl siding is covered by roofing over the walkway, the siding simply accumulated dirt.

While it may appear as simple as rinsing the dirt off, that is not the case.  Yes, we washed the dirt off off the vinyl, however, that initial clean did not restore the siding to it’s original white state.

When vinyl siding is left uncleaned for a very long time, the surface dirt will wash away, but the “white vinyl siding” will look brown and stained.

This is similar to glass that has hard water stains.  No matter how much you scrub and wash, the hard water stains remain.

It is the same with covered vinyl siding.  Instead of organic materials accumulating, we have mineral accumulation.

Underneath that surface dirt was brown staining.

Do you have brown vinyl that was white at one time?

Let’s take a look at the next picture:

Removing mineral damage from vinyl siding requires a second chemical wash and rinse.

Here is simple algorithm:

If you have green/black stuff on your siding and eaves, you need:

ALKALINE!  Sodium Hypochlorite based solution.

If you have cleaned off the green/black stuff, and still have brown or red staining.  Sorry, but you need:

ACID!  This solution I am keeping a secret.  Sorry!  But as you can see from the pictures of the vinyl siding in Whitby, it is cleaned and looks like new.