ETFE skylight design planner 2026

Where ETFE's Advantages Are Actually Won

ETFE spans further, weighs a fraction of glass, and lets in more light than any glazing system you can name. None of that is decided in the detailing. It is decided in the first week — in four numbers that nobody owns alone.

Ask an architect why they chose ETFE and you will hear the same short list: it is light, it is clear, it spans, it lasts. Ask them six months later how much of that advantage survived into the built job, and the answer is usually more complicated.

The reason is that ETFE's merits are not independent properties you select from a datasheet. They are the result of four numbers that have to be settled together:

• The form — barrel, oval or dome, and how much rise you allow it.

• The arch spacing — which sets how much steel you buy.

• The cushion width — which, for most forms, is the arch spacing.

• The film thickness — which the cushion width dictates, not the other way round.

Change any one and the other three move. Widen the arch grid to save steel and the cushions get wider, so the film has to get thicker, and past a certain point no available film is thick enough. Tighten the grid to use thinner film and the steel tonnage climbs. There is a good answer in there, and it is usually not the first one anybody drew.

The trouble is that traditionally those four numbers sit with three different people. The architect owns the form. The facade specialist owns the cushion and the film. The structural engineer owns the steel. Each iteration is an email, and by the time the loop has gone round twice the concept has been frozen for other reasons entirely.

The ETFE Skylight Planner exists to close that loop in seconds instead of weeks — so the trade-off gets explored while it is still cheap to change your mind.

Learn how this works and then sign up and try it now for free pick the below link:

Lets plan ETFE