Ensuring the durability and finish of a house requires regular maintenance of its wooden siding, as well as periodic application of a product to refresh the finish. 

During the annual cleaning, use a Wood Cleaner & Brightener with a light water pressure to remove dirt, pollen, and mold. Don't forget to rinse thoroughly with clear water and use a brush with an extensible handle if needed. If you notice dirt streaks, check the proper functioning of the gutters and downspouts. 

Regularly inspect the entire siding to ensure the finish is in good condition. If you notice areas that have faded from sun exposure, apply a new coat of product promptly. It's important not to postpone the necessary refresh to avoid the finish being too damaged. 

Remember to wear gloves and eye protection during cleaning. By following these simple steps, you can keep your wooden siding in good condition for many years and avoid having to strip, sand, and refinish the entire siding, which requires several days of work.