This contribution offers a focused insight into an executed tent-based textile system at the Centro Sportivo Tenero. The objective was to achieve summer comfort without mechanical cooling on existing slabs while preserving the camping character. The approach couples integrated detailing of structure and envelope with iterative verification: a 1:1 decision mock-up, geometry/FEM predesign with semi-rigid joints, a full-scale portal-frame test to calibrate joint parameters, a hall prototype to exercise installation, and in-use monitoring. Structurally, the eaves strut was eliminated by activating moment resistance at the eaves and ridge; the joint behaviour (including assembly clearance) was captured by calibrated non-linear rotational springs, enabling reliable deflection predictions and a robust, serviceable frame with pinned bases. On the envelope side, a back-ventilated double-layer roof was detailed and fabricated under coating-related constraints while maintaining continuous airflow and clean interfaces to the frame. Field measurements against a legacy army tent confirmed the thermal benefits under real operation: peak indoor temperatures were reduced by up to ~20 K at ridge level and ~15 K near the floor, with a markedly lower risk of condensation. The workflow—decision mock-up, targeted testing and monitoring—proved effective for converging details, installation planning and performance verification. The method is transferable to tent-based textile applications where comfort, speed of installation and robust, standard-aligned detailing are critical.