Buildair Virtual Wind Tunnel (VWT) is an analysis software under development at CIMNE in collaboration with Buildair S.A. to improve the modeling of inflatable structures. This new tool is designed for efficiency, enabling realistic Fluid-Structure Interaction (FSI) simulations with limited computational cost and short turnaround time. Buidair VWT delivers improved accuracy compared to traditional quasi-static estimated solutions with standardized wind pressures, which tend to overestimate loads. This is achieved without resorting to expensive high-fidelity CFD solutions, which are impractical given the resources available to small and medium-sized companies.