Domestic technical textiles Industry Segment-wise consumption of ...

Architectural Membranes
Architectural membranes are relatively new construction materials being used in India. The
applications of architectural membranes include construction of permanent and semi-permanent
structures such as car park covers, cafes, walkways, hotels, outdoor entertainment areas, pool
surrounds, greenhouses, airports, stadiums, sports halls, exhibitions and display halls, storage bases
for industrial and military supplies and any venues that require protection against harsh UV rays, heat,
glare, rain and wind. The textile structures used for construction material can be classified into the
following types:
• Clear-span structures: These structures provide a clear space beneath the fabric, free from
supporting elements. Clear span structures are less permanent than air or tensile structures
however, they accommodate doors, flooring, insulation, electricity and HVAC easily as
compared to tents.
• Tension structures: In this structure, the fabric is supported by metal pylons, tensioning
cables, wooden or metal frameworks. A relatively minimal rigid support system is required
for these structures since the fabric carries most of the load.
• Air Structures: The main components of an air supported system are the envelope (fabric),
inflation system (fans), anchorage system (cables and foundation), doors and access
equipment. Air pressure inside the envelope provides tensioning and maintains required
configuration and stability.
Product characteristics
Architectural membranes are strong, energy efficient and aesthetically superior products that offer
flexibility to designers and architects thus, allowing high levels of creativity. The textile material used
for construction purpose is expected to be:
• Waterproof
• Fire retardant
• Resistant to deformation and extension under tension
• Impermeable to air and wind
• Resistant to abrasion and mechanical damage
• Resistant to sunlight and acid rain
• Resistant to microbial attack
Depending on application, the fabric may need to transmit or reflect different levels of light. The most
widely used materials are: