Twist instead of close
The top and bottom of each vertical fabric fin rotate independently, letting the facade shade through a controlled twist rather than a simple open or closed state.
Work
Shading System
Kinetic twist-fin facade developed through parametric simulation to compare solar control, useful daylight, and outside view.
Stage
Shade the sun, keep the view.
The kinetic facade uses twist-controlled vertical fabric fins to reduce direct sun while preserving useful daylight and outside view. The proposal includes the exterior system, interior comfort, app-based control, and a modular cassette assembly.
Three things to balance
The system aims to reduce direct beam radiation while keeping useful daylight and outside view available.
A repeatable cassette
Head and sill boxes hold the mechanism in a modular bay, with service access and optional BIPV included in the assembly.
From competition to paper
The competition proposal developed into a conference-paper study of adaptive solar control, daylight, and view.
Backstage
How I compared each fin position.
I used parametric modeling and simulation to compare seasonal poses through direct sun on glazing, Useful Daylight Illuminance, and Horizontal Sight Angle, with fixed and unshaded cases as baselines.
I separated top and bottom rotation
Controlling the two edges independently created a twist gradient, so the upper and lower parts of the opening could respond differently to sun and view.
I kept three metrics together
I compared direct sun, useful daylight, and Horizontal Sight Angle at the same time instead of maximizing one and ignoring the others.
I tested seasonal states
The summer positions block the beam path while keeping a view corridor. The winter positions open for low-angle solar gain.
I kept the limits visible
The current work supports the environmental and geometric logic, but not full engineering validation. Wind, motor sizing, maintenance, and exact control hardware remain outside the confirmed scope.