tükk EFTEd kaalub vähem kui üks protsent sama suurest klaasitükist ja on parem isoleermaterjal kui klaas ning palju vastupidavam päikese toimele
Ethyl tetra fluoro ethylene foil is a strong, transparent and lightweight plastic. A pieceof ETFE weighs less than one percent of a piece of glass with the same volume, it is a better insulator than glass, and it is much more resistant to solar gain.
