Algae On Vinyl Siding

 
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Old 02-18-2008, 12:46 PM   #1
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Algae On Vinyl Siding


Algae seems to build up on my vinyl siding almost yearly and I'm getting tired of cleaning it so often. Some spots are way worse than others, I believe areas that get less sun are more prone to the algae. I got an estimate to have the whole exterior cleaned and to have Armor All applied. I was told that I could get at least 5 years out of it this way before the algae starts to return. Does anyone here have an opinion on using Armor All on siding? Could there be something in the installation that may be causing this. On the surfaces where it builds up it's pretty even across the surface, It does not look like streaks from leaking or anything. I'll snap a few photos and post them up here tomorrow.

Thanks

Rob
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Old 02-27-2008, 07:46 PM   #2
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Re: Algae On Vinyl Siding


A mild solution of water with bleach will pull alges and mildew off vinyl siding. Dont use armour all.

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Old 02-27-2008, 08:45 PM   #3
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Re: Algae On Vinyl Siding


I've used TSP (Trisodium Phosphate) to do my last home on the north side where I had a problem.
It cleaned it up nice and I didn't see any recurrence in five years.
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Old 02-27-2008, 09:41 PM   #4
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Re: Algae On Vinyl Siding


bleach and the TSP is what i've found to work best. experiment with the ratios to find the best solution for your fungi. obviously water down plants and grass near the area before and after.

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Old 02-28-2008, 04:04 PM   #5
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Re: Algae On Vinyl Siding


50/50 water bleach with a pinch of TSP and a soft bristle broom.

I've never seen algae, moss or mildew on vinyl. Sounds like a symptom of a much bigger problem.
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Old 02-28-2008, 08:04 PM   #6
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Re: Algae On Vinyl Siding


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50/50 water bleach with a pinch of TSP and a soft bristle broom.

I've never seen algae, moss or mildew on vinyl. Sounds like a symptom of a much bigger problem.
We get mildew and mold on shaded areas and northern exposures of homes where there is a dust problem. Vinyl siding wont mildew without dust and moisture.
Stay away from any detergent when cleaning vinyl siding as soap suds can get traped in the grain and look like chalking when it dries. Simple green is recomended. Comercial bleach is non detergent.
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Old 02-29-2008, 08:15 AM   #7
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Re: Algae On Vinyl Siding


I just thought of something... each manufacturer will have recommended solutions for cleaning their siding. You may want to check with the siding manufacturer to make sure you are not voiding any warranties.
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Old 03-01-2008, 11:36 AM   #8
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Re: Algae On Vinyl Siding


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I just thought of something... each manufacturer will have recommended solutions for cleaning their siding. You may want to check with the siding manufacturer to make sure you are not voiding any warranties.
Many vinyl siding warranties have a care and maintenance section that suggests using Tide detergent or similar products to clean vinyl siding. The problem is a home owner will clean their house like they wash their car. They will get a bucket of warm soapy water (TIDE) and wash the house then rinse it off with the hose. What can happen is the siding expands with the warm soapy bucket solution and when rinsed with cold water out of the hose the siding contracts trapping soap in the grain. Trapped soap looks like oxidation or caulking . Simple green is approved by all vinyl manufacturers to clean vinyl.
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Old 03-01-2008, 12:11 PM   #9
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Re: Algae On Vinyl Siding


Quote:
Originally Posted by easy sider View Post
Many vinyl siding warranties have a care and maintenance section that suggests using Tide detergent or similar products to clean vinyl siding. The problem is a home owner will clean their house like they wash their car. They will get a bucket of warm soapy water (TIDE) and wash the house then rinse it off with the hose. What can happen is the siding expands with the warm soapy bucket solution and when rinsed with cold water out of the hose the siding contracts trapping soap in the grain. Trapped soap looks like oxidation or caulking . Simple green is approved by all vinyl manufacturers to clean vinyl.
I think this is the reason that the algae/mold never showed up again on my old house after using the TSP.

The residue from the TSP probably kept the growth at bay.

It worked fine on this application because the "soapy oxidation" was almost invisible on this particular color of siding.
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Old 03-04-2008, 12:32 PM   #10
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Re: Algae On Vinyl Siding


Bleaches only kill on the surface, they also leave a chalky film, and fade the colors out. I would suggest Britenol HD from EaCo Chem. It may take a little bit longer to remove it but the results will last 3 to 5 times longer than bleach will, without the negative side effects. Britenol kills the mildew on the spore level as opposed to bleach's surface kill. It also brightens the surface instead of dulling it.

x-jet it on at 4-1 with a double application then rinse off.

www.eacochem.com

Gutter Clean & Power Wash
Hickory NC

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