After a winter’s worth of weather abuse you may notice your white siding has taken on a yellowish hue, your home’s rich Pacific blue looks a little dull, your Spruce needs a little sprucing – the once vibrant siding on your house has begun to look dingy. Don’t worry this is perfectly normal and easily correctable.

There are a couple of factors that contribute to this:

Common exposure – wind blowing dirt and debris against the house, leaves falling, rain, birds, insects– life outside is dirty.

Chalk accumulation – this dull film is a common occurrence for all pigmented materials which are constantly exposed to sunlight and the elements.

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. Algae build up is one example of a common siding stain.

Mildew – extremely damp climates or areas of the home that don’t receive enough sunlight or access to rainfall, such as the eaves and porch enclosures might see mildew growth.

Don’t panic. This is all quite common and in the course of an afternoon you can have your home looking as nice as it did when the siding was first installed.

How to Clean

Let’s take this cause by cause:

Dirt, grime, soot and chalk. For general dirtiness all you’ll need is a bucket of soapy water – dish soap or common laundry detergent work well, a soft bristle brush and a garden hose. Apply the soapy mixture by hand and thoroughly rinse the siding with clean water from the garden hose. Avoid prolonged or high pressure rinsing of open ventilated areas and keep cleaning solution off surrounding fixtures and surfaces not scheduled for washing. NOTE: We do not recommend power washing vinyl or polymer siding as it can cause moisture intrusion, damage, and/or discoloration. Instead, we suggest using a house wash that connects to your hose. This is the simplest and most effective way to clean stubborn siding stains. A small amount of soapy water shouldn’t affect plants or shrubbery, but if you are concerned about plantings close to the house select a soap product without added perfumes, dyes or moisturizers. Before using, test a small amount of the solution on the plant and wait a few days to see if there are any effects.

Stains. Occasionally siding will incur a stubborn stain, like algae build up, that does not come off with standard household detergents. In these cases it is best to request a cleaner suggestion from our crew. We will be able to give you suggestions of products designed to work with the siding at hand but even still, always test a small amount in an inconspicuous location.

Mildew. Vinyl siding is mold and mildew resistant. However if the siding is dirty, mildew could grow on the dirty coating especially in warmer climates with consistently high humidity. Mildew appears as black spots on surface dirt and is usually detected in areas not subjected to rainfall, such as under eaves and porch enclosures. To remove mix together: 1/3 cup of detergent (Tide, for example), 2/3 cup of Trisodium (SoilMax, for example), one quart of 5% Sodium Hypochlorite (Clorox bleach, for example) and three quarts of water. (Caution: Greater concentrations may cause damage to vinyl siding.) If this solution does not easily remove the mildew, you can request a mildew-specific cleaner from your local building materials retailer.

Also don’t forget when working with chemicals make sure you read all precautions and warnings to avoid injury. Always dispose of chemicals in a manner prescribed by the manufacturer.

Reach out to us today at Xtreme Home Products located in the heart of Downtown Mooresville! We can answer any questions you may have about your vinyl siding. We serve Statesville, Troutman, Asheville, Hendersonville, Winston Salem, Taylorsville, Hickory, Denver, Sherrills Ford, Mooresville, Newton, Concord, Davidson, Huntersville, Cornelius, Lincolnton, Charlotte, and the surrounding areas.


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