Etfe Roof Fire

Class c is the lowest class of non fragile assembly and particularly if engineered to pass the test criteria may be close to the boundary between fragile and non fragile.

Etfe roof fire.

Etfe has a melting point of approximately 260 c. A material of limited combustibility en 13501 1 eur class bs1d0. The water cube of the 2008 olympics the world s largest structure made of etfe film laminate. Fire etfe foil as a material has low flammability 270c and is considered self extinguishing.

Why is it not a good idea. High tensile strength extraordinary tear and impact strength of etfe foil are the basic properties of an ideal membrane material. Etfe roofs are superior in terms of safety. Bs476 6 7 class 0.

The water cube s façade consists of 4 000 texlon etfe bubbles some as large as 9 14 metres across with 15 different sizes. Etfe is a very ductile material and demonstrates good failure behaviour thanks to its large deformations before breaking point. In the event of a fire hot smoke will cause the foil to soften fail and then shrink away from the fire source to create natural ventilation. Etfe roof at manchester piccadilly station manchester uk an example of its use is as pneumatic panels to cover the outside of the football stadium allianz arena or the beijing national aquatics centre a k a.

Means etfe is a combustible material with a very limited contribution to fire with a weak quantity speed of smoke emission and no dripping of. In the event of an earthquake or collision a glazed roof will often shatter which can be extremely dangerous for anyone who happens to be beneath it. Consequently the fire behavior of etfe foil applied in a roof or in a façade area can be described as very safe referring to the flame spread and fire propagation. Etfe foils have a very high durability compared to other transparent plastic materials.

The realization of etfe foil used for roofs facades and building envelopes for large grandstands domes stadiums or arenas as well as shopping centers or botanical gardens. Etfe foil cushion systems are certified as class c non fragile roof assembly in accordance with acr m 001 200 test for fragility of roofing assemblies. Etfe roofs are also superior in terms of safety compared to glass roofs. The fire rating of etfe to british and european standards which are very detailed in their rating is class bs1d0.

There are some very real concerns about using low melt panels for smoke control. It has been argued that because etfe can melt the cushions are able to self vent in the event of fire shrinking back from flames to allow the fire to vent to atmosphere eliminating the need for smoke control.