An ETFE membrane cushion system with multiple layers may reach an R-value of up to 3. A single membrane will help stop the air transfer through to the interior, but typically only has an R-value of 1. Tensioned fabrics and films are available as waterproofing solutions and can protect interior environments against wind, rain, and snow. How effective are tensile membranes at performing the functions of a building envelope? Does it protect the interior of the structure from outside elements? Does it give the structure a visual appeal?Ī tensile membrane can be very effective functioning as a building envelope. There are several methods available to create a building envelope (enclosure) with a membrane structure, including thermally-insulated ETFE cushion systems. The membrane is the “skin” that wraps a building and separates the inside from the outside. When utilized as a component, it will typically be applied as the outside layer that is visible from the exterior of the structure. Tensile fabric membranes can be featured as either a component or as the primary material of the walls and/or roof of a structure. How can a tensile membrane be used as a building envelope ? A building envelope is the exterior of a building and includes the outer walls, roofing, and foundations.Ī building envelope typically performs three functions: separate the interior of a structure from the outside world, control various elements inside the structure such as natural light and temperature, and provide the structure an exterior visual. Answering some of the most frequent building envelope questions is Erik Jarvie, Vice President of Business Development at PFEIFER Structures.īy definition: A building envelope is a barrier between the interior and exterior of a building designed to control the transference of air, water, heat, light, and noise. In order to provide an understanding of what a building envelope is, how it’s made, and what uses it has, PFEIFER Structures will be providing a Q&A on building envelopes. These can be in the form of fabric, fabric mesh, or ETFE foil. PFEIFER Structures specializes in lightweight structures that make people say, “Wow!” When people see Allianz Field, or BC Place Stadium, or Oceanus Casino, they ask, “How is that made? How can I make a structure look like that?” These structures utilize tension membranes as a building envelope.
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