Apply the Cedar Wash solution starting at the bottom of the wall and work your way up. Work only an area big enough so that the Cedar Wash is on the wall for about 10 to 15 minutes. Gently scrub the wall with a soft bristled brush to remove stubborn stains and heavily soiled areas.
The Cedar Bureau recommends using a solution no stronger than one-part bleach to three parts water. Apply it with a pump sprayer and let it sit for about 15 minutes before rinsing it off with a garden hose. Be sure to keep the hose pointed downward to avoid forcing water up behind the shingles.
You can use water mixed with a bit of mild detergent for a basic cleaner. If you need a stronger cleaner, you can dilute bleach with water for a cleaner that will accentuate the natural luster of the cedar. This is particularly effective in the removal of mildew. Wipe the wood gently, and avoid excessive scrubbing.
Mix the powdered bleach according to directions on the bottle, such as 4 parts water to 1 part powder. Apply the solution with a clean garden sprayer, allowing it to soak for 15 minutes. The bleach will remove much of the discoloration. Use a nylon-bristled scrub brush to remove the rest.
The best way to restore your cedar siding or cedar fence to its original glory is with soft washing. Instead of the robust streams of high-pressure water used in pressure washing, soft washing uses a low-pressure technique with a special mixture of highly effective and biodegradable cleaning solutions.
Absolutely! The official OxiClean website gives step-by-step instructions on removing stubborn stains from decks, patios, deck furniture, and more. Since these surfaces are made from wood, it is perfectly acceptable to clean cedar siding with the product.
Can pressure washers be used on cedar siding? As long as the sprayer is set to a low pressure, pressure washing can be used to clean cedar. It is important to avoid damaging the wood's soft surface, so using a low pressure and not working too closely to the siding is necessary.
Power washing can be used to clean cedar as long as the sprayer is set at a low pressure to prevent damaging the wood's soft surface. Once cleaned and allowed to dry, the wood can then be painted using a urethane-acrylic house paint.
You simply keep the wood siding wet with the oxygen bleach solution for 15 minutes. It will remove the mildew and deep-clean the siding. Lightly scrub the siding before rinsing with clear water from a garden hose. Avoid the temptation of using a pressure washer.
When a home has only some mild mold and mildew on it's exterior, it is often a good candidate to be soft washed. However, the presence of algae, moss, and lichen can require a more comprehensive cleaning process in order to get your siding meaningfully cleaned and to keep it that way for as long as possible.
Algae and molds can be cleaned quite easily and effectively with bleaching agents such as sodium hypochlorite (liquid household bleach) and sodium percarbonate (the active ingredient in some commercial cleaners). Bleaching agents quickly kill mold and algae, but they also can degrade wood.
The best woods for bleaching include oak, beach, ash, and gum. Varieties like poplar and pine are already so light that removing further natural wood color might render them bland and lifeless. Others, like cedar, redwood, rosewood, and cherry don't take bleach well.
The most common culprits are tannins, mildew, and mold. Tannins ordinarily leach from cedar wood, and do not normally cause any problems. However, when tannins mix with metal and iron, a chemical reaction occurs and a black stain can form. Cedar, along with any other wood, is a natural habitat for mildew and mold.
Can you pressure wash cedar siding? Yes, you can pressure wash cedar siding by using a low PSI pressure washer or adjusting a pressure washer to its lowest PSI setting. This protects the cedar from being damaged from too high of pressure because it is softwood.
There is a common misconception that just pressure washing a deck prior to staining is all you need to do in order to prep your deck for stain. Pressure washing can help, but if you want your stain to last, using a good deck cleaner and brightener on the deck prior to pressure washing will provide you the best result.
To prevent cedar from fading to gray, you need to seal cedar fence with a stain that blocks ultraviolet light and contains a mildewcide, according to Family Handyman.
Prepare your cedar siding by washing it with soapy water to remove any dirt or dust (if any has accumulated). After you have washed it, wait for it to dry before applying any stain to the cedar.
Cleaning wood siding
A high-pressure power washer can dent metal, and on wood, it can force water under the surface, which can damage a piece of wood siding. It can also damage whatever is under the wood siding and potentially cause mold.
Wet a section of siding with your garden hose. Apply solution and scrub. Use a soft-bristle brush to apply the cleaning solution section-by-section, scrubbing firmly enough to clean without damaging the siding surface. You can purchase an extendable brush specifically for cleaning siding, or use a long pool broom.
Semi-transparent stains are your best bet when you want the real look of slightly weathered cedar with protection. The few solid particles in this mix will not significantly obscure cedar's wood grain. However, with semi-transparent stains, you will need to take care with the application.
First, you will need to pressure wash your fence. You will then need to apply a wood brightener. We recommend the Restore-a-Deck Brightener (and all of their products actually). Then you will need to protect the fence from future damage by applying a good wood stain and sealer.