Nothing ruins the charm of an outdoor bench like a soggy seat after a rain shower. Preventing water from pooling on your benches is crucial for both comfort and longevity. Here’s how to ensure proper drainage and keep your seating dry and inviting.
The most fundamental and effective strategy is to design the bench seat with a slight slant or pitch. A gentle slope of 1-2 degrees is often sufficient to encourage water to run off naturally instead of collecting in puddles. This can be achieved during construction by ensuring the seat supports are slightly higher at the back than the front.
For flat seats, incorporating drainage holes is a highly effective solution. Drill several small holes (approximately 1/4 to 1/2 inch in diameter) through the seat material, particularly in low spots where water tends to gather. This allows water to escape directly through the seat. To enhance this, you can also create channels or grooves on the seat surface that lead to these drainage holes, guiding the water away more efficiently.
Your choice of material also plays a significant role. Select materials that are naturally resistant to water and dry quickly. Teak, cedar, aluminum, and all-weather wicker are excellent choices. Avoid materials that can trap moisture, like non-perforated cushions or certain plastics. For added protection, consider using slatted designs for the seat instead of a solid, flat surface. The gaps between the slats provide instant drainage and allow for air circulation, which helps the bench dry faster.
Finally, proper installation and placement are key. Ensure the bench is positioned on a stable, level surface, but check that the seat itself maintains its intended slope. Avoid placing benches directly under trees where not only rain but also dripping sap and leaves can clog drainage holes. Regular maintenance, such as clearing debris from drainage holes and grooves, will ensure your drainage systems continue to function perfectly for years to come.