PVC coated Polyester Fabric (PES/PVC) is the oldest and still widely used for Membrane Structure. PVC coating combined with a top coating of PVDF (Polyvinylidene fluoride), they perform satisfactorily under adverse at morphemic conditions. The main advantage of PVC coated Polyester fabricate are their high tensile strength (60-200kN/M), a high elongation at rupture (15-20%) and superior flexibility.
(Polytetrafluoroethylene) coated glass Fabric is commonly known as Teflon coated Fiber Glass. PTFE unique thermal stability and self-cleaning properties make PTFE ideal for projects require superior weather and Fire Resistance. PTFE coated glass fiber membranes are today considered the modern membrane material. Their main advantage are their high tensile strength, the high modulus of elasticity, the superior of fire resistance, self-cleaning properties and excellent durability and weather resisting ability. Their only disadvantage compared to Polyester is the base membrane reducing flexibility during shipping and installation because of higher modulus of elasticity.
Ethylene tetrafluoroethylene (ETFE) is a fluorine-based plastic. It was designed to have high corrosion resistance and strength over a wide temperature range. ETFE is a polymer and its source-based name is poly (ethene-co-tetrafluoroethene). ETFE film is self-cleaning (due to its nonstick surface) and recyclable. It is prone to punctures by sharp edges and therefore mostly used for roofs. As a film for roofing it could be stretched (up to 3x) and still be taut if some variation in size occurs (due to thermal expansion, for example.) Employing heat welding, tears can be repaired with a patch or multiple sheets assembled into larger panels.
A facade, or façade is generally one exterior side of a building, usually the front. It is a loan word from the French façade, which means “frontage” or “face”. In architecture, the facade of a building is often the most important aspect from a design standpoint, as it sets the tone for the rest of the building. From the engineering perspective of a building, the facade is also of great importance due to its impact on energy efficiency. For historical facades, many local zoning regulations or other laws greatly restrict or even forbid their alteration.