Placing urban outdoor furniture directly on astroturf or a rooftop membrane is generally not recommended. While it might seem convenient, doing so can cause significant damage to both the surface and the furniture.
Astroturf, or artificial grass, has a delicate backing that can be punctured or torn by heavy furniture legs. This leads to premature wear, drainage issues, and an uneven surface. Similarly, rooftop membranes—the critical waterproof layer—are easily compromised by punctures, scratches, or concentrated weight. A breach can result in costly leaks and structural damage.
For astroturf, always use protective pads or boards under furniture legs to distribute weight. For rooftop membranes, a protective decking system or pavers create a stable, non-penetrating base. This elevates the furniture, protects the membrane, and often aids in drainage.
In short, never place furniture directly on these surfaces. Investing in proper protection safeguards your investment in both the furniture and the underlying area, ensuring longevity and functionality for your urban outdoor space.