Selecting outdoor furniture for a rooftop acoustic presence lab requires careful consideration of durability, soundproofing, and weather resistance. Start by choosing materials like powder-coated aluminum or teak, which withstand harsh weather while minimizing noise. Opt for modular designs that allow flexibility in arrangement without compromising acoustic performance. Cushions should be made of quick-dry, UV-resistant fabric to ensure longevity. Additionally, incorporate sound-absorbing elements like thick rugs or acoustic panels to enhance the lab's functionality. Prioritize low-maintenance pieces to reduce upkeep and ensure consistent performance in your outdoor acoustic space.