Can you clean cedar siding with bleach?

The Pros and Cons of Using Bleach

Before delving into the process of using bleach on cedar siding, it is important to understand the pros and cons of this approach.

Pros:

1. Bleach is a powerful disinfectant: It can effectively kill bacteria, mold, mildew, and other harmful organisms that may be present on your cedar siding.
2. Affordable option: Bleach is readily available and relatively inexpensive, making it an attractive choice for homeowners on a budget.

Cons:

1. Color fading: Bleach has the potential to bleach or lighten the color of cedar siding. This is particularly true for unfinished or unsealed cedar, as it is more susceptible to color changes.
2. Harmful to plants and surrounding areas: Bleach can be damaging to nearby plants, so careful precautions must be taken to protect your landscaping while cleaning.

Preparing Your Cedar Siding for Bleach Cleaning

Before applying bleach to your cedar siding, it is crucial to properly prepare the surface and take necessary precautions.

1. Inspect the siding: Check for any loose or damaged boards, as pressure washing or bleach application may exacerbate these issues. Address any repairs before proceeding with cleaning.
2. Clear the area: Remove any furniture, decorations, or other items that may obstruct the cleaning process. This will prevent damage to your belongings and allow for easier access to the siding.
3. Protect plants and landscaping: Wet down any surrounding plants and cover them with plastic or tarps to prevent bleach runoff from damaging them.
4. Wear protective gear: Always wear gloves, eye protection, and a mask when working with bleach to protect yourself from its potentially harmful effects.

Cleaning Cedar Siding with Bleach

Once the necessary preparations are complete, you can proceed with cleaning your cedar siding using bleach.

1. Dilute the bleach: Mix one part bleach with four parts water to create a solution suitable for cleaning cedar siding. Be sure to use a mild bleach, as stronger concentrations can cause more harm than good.
2. Apply the solution: Using a pump sprayer or a soft brush, apply the bleach solution to small sections of the cedar siding. Start from the bottom and work your way up, ensuring even coverage.
3. Scrub lightly: If necessary, use a soft brush or sponge to gently scrub away any tough stains or dirt. Avoid applying too much pressure, as this can damage the wood fibers.
4. Rinse thoroughly: After allowing the bleach solution to sit on the siding for a few minutes, rinse off the area with clean water. A pressure washer or garden hose can be used for this step, but ensure that the pressure is not too high to avoid causing damage.
5. Repeat if necessary: If the siding is heavily soiled, you may need to repeat the process in certain areas. However, be mindful of the potential for color fading with multiple applications.

Post-Cleaning Care

After cleaning your cedar siding with bleach, it is important to take steps to maintain its appearance and protect it from future damage.

1. Sealing or staining: If your cedar siding is unsealed or unfinished, consider applying a protective sealant or stain to prevent moisture damage and color fading.
2. Regular maintenance: To minimize the need for harsh cleaning methods, regularly inspect and clean your cedar siding. This includes removing debris, trimming plants near the siding, and addressing any issues promptly.

Cleaning cedar siding with bleach can be an effective way to remove dirt, mold, and mildew, but it is not without its drawbacks. Ensure you handle bleach safely, protect your landscaping, and be cautious of potential color fading. Following the proper procedures and maintaining your siding will help to keep it looking beautiful for years to come.