The mildew and algae are feeding on sugars dust dirt or other things that are attached to the siding.
Which siding resists algae.
As sturdy as vinyl siding is it s not resistant to pesty mold and mildew.
This article discusses common causes of stains or discoloration found on vinyl building siding.
You re probably wondering how mildew and algae can survive on plastic or vinyl siding.
Also resist the temptation to spot clean vinyl siding with liquid grease removers nail polish removers and furniture polishes which often contain organic solvents.
In order to keep your beautiful vinyl siding in tip top shape there is a bit of upkeep involved.
Certainteed has developed shingles with streakfighter algae resistant technology.
This is an issue with homes that don t have a proper weather barrier installed underneath the siding which is common in older homes as well as homes where the siding was not properly.
How algae resistant shingles work.
A 1 10 concentrated mixture with water can produce 11 gallons of a mixture with a bottle.
Make repairs as quickly as possible to your gutters to prevent overflowing water spilling onto your siding and developing into mold.
There is no petroleum solvent in it.
Tip 4 remove dirt from your siding.
Stains while many vinyl siding products like those from certainteed are designed to resist most common household stains like oil and grease stains do still occur.
One bottle can clean up to 2000 square feet of area.
Distinguishing the type of stain found on siding is useful in deciding on the cause and thus the cure or prevention of staining.
Vinyl siding stain diagnosis.
Algae discoloration most often occurs on east facing surfaces but can show up anywhere on your roof.
Special surfactants penetrate the surface to dissolve the toughest stains of mold or algae from the siding.
Dirt from rain splash up algae lichens mold moss or even smoke or chemical stains have different causes and different preventative measures.
While the growth of algae and mildew doesn t automatically mean there s a problem it can mean that your home is trapping moisture underneath the siding.
Vinyl siding is made to withstand cracks chips and fading.
Once you know how to remove green algae from vinyl siding and help to prevent it from returning you can move on to other interior and exterior spring cleaning projects including pressure washing exterior surfaces such as your driveway deck or sidewalks using these tips from the experts at window genie.
But that doesn t mean you can t get mold on vinyl siding.
In fact an algae infection typically takes hold well before the black streaking is visible.
Algae build up is one example of a common siding stain.