When furnishing a rooftop terrace in an urban environment, selecting furniture with appropriate weight is crucial to prevent it from blowing away during windy conditions. Generally, furniture should have sufficient inherent weight or be properly anchored to withstand typical wind forces in your area.
For light wind conditions (up to 20 mph), furniture should weigh at least 25-30 pounds per piece. For moderate winds (20-35 mph), aim for 40-60 pounds per item. In areas experiencing strong winds (35-50 mph), furniture should either be very heavy (70+ pounds) or securely anchored to the structure.
The best materials for weight and weather resistance include:
- Powder-coated aluminum (medium weight)
- Cast iron (very heavy)
- Concrete composite furniture (extremely heavy)
- Teak wood (naturally heavy when untreated)
Beyond sheer weight, consider these design features:
- Low-profile designs with lower centers of gravity
- Stackable or foldable pieces that can be stored during storms
- Built-in anchor points for securing to railings or floors
- Perforated designs that allow wind to pass through
Practical solutions include:
- Adding sandbags or weight bags to chair and table legs
- Using terrace anchoring systems with cables or straps
- Selecting modular pieces that can be grouped together for added mass
- Installing temporary wind screens to reduce wind impact
Always check your building's weight restrictions and structural requirements before adding heavy furniture to your rooftop terrace. Consulting with a professional can help you find the perfect balance between safety, functionality, and style for your urban outdoor space.