Solar on Gravel Flat Roofs

Can I put solar on a gravel flat roof?

Gravel flat roofs are excellent for solar panels: BALLASTED SYSTEMS: heavy frames sit on the gravel surface — no drilling through the waterproof membrane. The gravel provides a stable base. Weight is distributed across a large area. ADVANTAGES: (1) No membrane penetration = no leak risk. (2) Easy to reposition if needed. (3) Lower installation cost (no structural fixings). (4) Gravel protects the membrane beneath panels from UV degradation. TILT ANGLE: frames at 10-15° for optimal output without excessive wind loading. CONSIDERATIONS: (1) Structural check — ensure the roof can support panels + ballast (additional 15-25 kg/m²). (2) Wind analysis — ballast weight must resist uplift forces. (3) Access — maintain walkways between rows for inspection and cleaning.