How to Clean Stained Cedar Siding

Cedar siding looks beautiful when it ‘s fresh and fresh, but as the years go on, it may become begrimed, blue and neglected. The side of the sign of the zodiac with the least sun exposure can be the worst spot, with the cedar developing mildew or mold that looks black. Get rid of that dirt by cleaning your cedar siding with an oxygen bleach and choosing a protectant that does n’t feed future mold emergence.

The Root of the Problem

The crystalline and translucent stains used to preserve cedar ‘s gorgeous effective looks are often the culprits that causes mold or mildew growth. Oil-based stains contain natural substances that mold and mildew spores consider food, such as linseed oil, tung tree oil or even animal fatty. An outside wall that does n’t get ample sunlight stays wet longer than other sides of the social organization after rain, snow or in humid conditions. Because mildew besides loves moisture, that cedar siding protected with an oil-based stain is about like eden for fresh mold increase – and the problem begins.

The Solution

Oxygen bleach removes alga, cast and mold from cedar, restoring much of the wood ‘s natural beauty. It ‘s besides safe for plants that may unwittingly get drip upon during the houseclean serve. Look for a powderize oxygen bleach that does not contain sodium hydroxide or potassium hydroxide, as these could damage the wood ‘s protective finish. Mix the powder bleach according to directions on the bottle, such as 4 parts urine to 1 part powder.

Apply the solution with a clean garden atomizer, allowing it to soak for 15 minutes. The bleach will remove much of the discoloration. Use a nylon-bristled cancel brush to remove the rest. Rinse the wood with a garden hose subsequently. Avoid breathe in the powder or rubbing your eyes while working with oxygen bleach, as it can cause irritation. If the wood still looks dirty in some areas, apply a wood deck uninfected, following the manufacturer ‘s directions. Follow up with a wood-restoring product designed for cedar.

Iron-Based Stains

The iron found in startle fasteners, adenine good as some window screens and flashings, can cause blue or blacken stains on cedar. These stains do n’t respond to oxygen bleach. alternatively, use a woodwind bleach containing a 5 percentage oxalic acid solution to remove the stains. Oxalic acid is toxic, so observe pets and unseasoned children away while you use it. wear protective invest and rubber gloves arsenic well.

After spot-cleaning the affected areas with a nylon scrub brush, thoroughly wipe and rinse away any remaining acid to prevent price to the wood. A dampen quick study can be used to remove excess woodwind bleach. note that plainly removing a stain caused by the metallic element objects wo n’t prevent future stains ; the lapp fasteners or materials can cause stains again.

What Not to Do

Do not use regular family bleaching agent, which contains chlorine, to clean woodwind siding. Buffalo Lumber warns that chlorine bleach can cause permanent damage to forest fibers. pressure washing, while it may seem like a quick solution, can besides cause price to your home. Water can force its direction in through seams or cracks, causing moisture damage in areas that would normally stay dry. The extreme press can besides damage cedar, leaving behind unsightly and permanent ruts and marks.

Choosing a New Stain

The next time you plan to stain the cedar after a exhaustive houseclean, select a water-repellent woodwind stain that contains celluloid, rather than natural, resins, particularly if you ‘re repeatedly dealing with mold or mildew stain, suggests Ask the Builder. Mold and mildew do n’t use synthetic resins as food, so they are n’t about vitamin a probably to cause discoloration.

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