Cedar siding adds natural beauty to any home but can lose its luster from dirt, grime, and environmental factors over time. Many homeowners wonder if pressure washing is safe and effective for cleaning cedar siding, but many home improvement experts tell you to avoid pressure washing wood. However, pressure washing can restore cedar siding to its former glory without causing damage.
Is It Safe to Pressure Wash Cedar Siding?
Pressure-washing cedar siding is safe using the right pressure settings and cleaning solutions. Cedar is a softwood, so high-pressure water can more easily damage it. However, with proper technique and care, you can pressure wash cedar siding without causing harm.
Soft Washing vs Hard Washing Cedar Siding
There are two main approaches to cleaning cedar siding: soft washing and hard washing. You’ll need to know the difference between these methods to maintain the wood’s integrity when you pressure wash.
Soft Washing
Soft washing uses lower pressure settings, typically below 1800 PSI (pounds per square inch). Soft washing works better for cedar siding when combined with specialized cleaning solutions. It’s gentler on the wood, reducing the risk of damage while effectively removing dirt, algae, and mildew. Think of soft washing as the go-to method for maintaining your siding without causing any harm.
Hard Washing
Hard washing uses higher pressure settings, often above 2000 PSI. While this method is more effective for removing tough stains, the high pressure can easily damage the soft wood, causing splintering, etching, or even stripping away the wood fibers. Soft washing offers a gentler, more controlled way to refresh your siding without compromising its structure.
Factors To Consider Before Pressure Washing Your Cedar Siding
Before starting the pressure washing process, homeowners should consider several factors to ensure the best results for protecting their cedar siding.
Type of Wood
Cedar siding comes in different varieties and has individual characteristics. Some types of cedar are softer than others, requiring even more careful handling to clean properly. You’ll need to identify the specific type of cedar siding on your home and adjust your cleaning approach accordingly to minimize the risk of damage.
Age and Condition of the Siding
Siding can take a beating from the elements, particularly in cold and windy climates. Before pressure washing, look at the age and current condition of your siding. Older, weathered siding may be more fragile and require a gentler approach. Look for splinters peeling up from the wood, cracking, or warping, all signs of older siding.
Before beginning pressure washing, identify any existing damage or weak spots so you can avoid them or be more careful around them. You’ll want a plan to maximize the effectiveness of pressure washing to prevent further deterioration.
Weather Conditions
Ideally, head outside with your pressure washer on a mild, overcast day with temperatures between 50°F and 80°F. Avoid pressure washing in direct sunlight or windy conditions, as they can cause uneven drying and potential damage to the wood. Additionally, a calm day, without wind or rain, helps achieve uniform results and protects the siding from unnecessary wear.
How to Pressure Wash Cedar Siding
It’s just as important to prep for pressure washing as it is to pick the right spray and pressure washer. You’ll want to follow these steps from start to finish for the best results.
- Prepare the area: Cover nearby plants, electrical outlets, and windows so that spray, or blowback from spray, doesn’t reach them. Tightly close all doors and windows. This step safeguards your landscape and home and prevents unintended damage.
- Choose the right equipment: Select a pressure washer with adjustable settings and a wide-angle nozzle. A pressure setting of 1200-1500 PSI is sufficient for most work. If you don’t want to buy one, many hardware stores have them available to rent.
- Mix the cleaning solution: Use a cedar-safe cleaner or a mixture of water and mild detergent. Avoid harsh chemicals or bleach-based products, which can strip the wood. The right cleaning solution preserves the natural characteristics of the cedar.
- Pre-wet the siding: Pre-wetting aids with plain water in loosening grime and prevents the siding from absorbing too much cleaning solution. Start at the bottom of the area you’re cleaning and work your way up, thoroughly wetting the cedar siding.
- Apply the cleaning solution: Using low pressure, apply the cleaning solution from bottom to top. Allow it to sit for 5-10 minutes. The soaking time allows the solution to act effectively on dirt and stains, but don’t let it dry completely.
- Rinse thoroughly: Rinse the siding with clean water, starting at the top of your home. Hold the nozzle at a 45-degree angle and maintain a consistent distance of about 2 feet from the surface. Consistent, even rinsing will eliminate all traces of the cleaning solution.
- Allow to dry: Let the siding air dry completely after rinsing before applying sealants or stains. Otherwise, they might not adhere when applied to the siding later.
Precautions in Using a Pressure Washer on Cedar Siding
To protect cedar siding during the pressure washing, take the following precautions.
Maintain Proper Distance and Angle
Stand at least two feet from the siding and maintain a 45-degree angle with the nozzle. This prevents water from forcing its way behind the siding or damaging the wood fibers. Maintaining a proper distance and angle enhances safety and ensures an even cleaning surface.
Move Continuously
To thoroughly clean and prevent damage, never keep the pressure washer’s spray in one spot for too long. You’ll want to keep the nozzle moving in a steady, sweeping motion to avoid creating streaks or damaging the wood. A consistent motion prevents any concentrated impact on a single spot that could lead to damage.
Watch for Signs of Damage
If any wood fibers start to lift or the siding shows signs of splintering, stop immediately and reassess your technique or consider hiring a professional. Vigilance during the washing process will keep you from inadvertently harming your siding.
Alternative Cleaning Methods for Cedar Siding
While pressure washing can be effective, it’s not the only option for cleaning cedar siding. These alternatives could be safer, especially on older siding.
Hand Washing
For smaller areas or more delicate siding, it’s more effective and safer to hand wash with a soft-bristled brush and a mild detergent solution. This method takes more time and effort, but you have greater control and can be gentler. Hand washing may also be preferable for intricate design elements where pressure washing isn’t practical.
Chemical Cleaners
There are specialized cedar cleaners on the market that you can apply with a pump sprayer or brush. These products are gentle on cedar while removing dirt and mildew. Choosing to selectively use chemical cleaners aids in achieving the desired cleanliness for specific stain types.
Oxygen Bleach Solution
A mixture of oxygen bleach and water helps brighten wood and remove stubborn stains without damage. It’s a non-toxic, eco-friendly option that still gives results.
Maintaining Cedar Siding After Pressure Washing
After cleaning, proper maintenance can help prolong the life and appearance of cedar siding.
Sealants and Stains
Once clean, apply a water-repellent sealant or stain to protect the wood from moisture and UV damage. Choose a product specifically made for cedar siding. These protectants enhance the aesthetic appeal and extend the siding’s life by maintaining its original characteristics.
Regular Inspections
To catch any issues early, conduct annual inspections of your siding. Look for signs of wear, damage, or areas needing cleaning. Regular assessments lead to timely interventions and prolong the siding’s vitality and charm.
Gentle Cleaning
Use a brush or cloth between pressure washing sessions to remove surface dirt and prevent buildup. This gentle care supports your primary cleaning efforts and keeps it clean longer.
When to Hire a Professional
While pressure washing cedar siding is a great do-it-yourself project, sometimes it’s best to call the experts. Consider calling for help if the siding is significantly damaged or deteriorated or when dealing with stubborn stains or extensive mold growth.
For homes with multiple stories or hard-to-reach areas, a professional will have the ladders and safety equipment to get the job done. And, if you’re unsure about the proper technique or how to use the equipment, professional pressure washing services have the experience and specialized equipment to clean cedar siding safely and effectively.
By leaning on their expertise, you can rest easy knowing they’ll have thoroughly cleaned every nook and cranny of your siding.
Final Thoughts About Pressure Washing Cedar Siding
Remember that cedar siding is an investment in a home’s value and appearance. While pressure washing can yield impressive results, you should approach the task with care and respect for the wood’s natural properties. When in doubt, don’t hesitate to consult with a professional to ensure the best outcome for your cedar siding maintenance.
