Answer
Mar 16, 2026 - 07:17 AM
Colored stain provides protection to the wood from UV rays in sunlight. The underside of a deck sees fewer activities; it does not receive direct sunlight, rain, or traffic and requires less maintenance in general. However, using Vermont Natural Coatings, PolyWhey Exterior Penetrating Stain can enhance appearance and provide added protection, especially if the area is prone to mold, mildew, or pests.
