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NBS National BIM Library
The BIM objects listed below are from the NBS National BIM Library, the industry source for generic and proprietary BIM content. The files are created in platform-neutral IFC format as well as the industry's leading 3D CAD format Autodesk Revit.

All NBS National BIM Library objects use the standard property set definitions specified by NBS to create a standard for BIM objects across the construction industry.
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DuPont™ AirGuard® Control
Air leakage barrier (to reduce convection heat loss), with low vapour resistance for roof, wall or floor systems.
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DuPont™ AirGuard® Reflective
Air & vapour control layer (AVCL) with reflective surface and very high vapour resistance, for use in all roof, wall and floor systems. The membrane is chlorine resistant and its low emissivity he...
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DuPont™ Airguard® Smart
Air & vapour control layer (AVCL) with variable vapour resistance for roofs, walls and floors. Membrane reacts to humidity within adjacent materials, allowing any moisture within the structure whic...
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Supro - Breathable roof underlay
Reinforced breathable roof underlay for use in all supported and unsupported pitched roof applications, including warm, hybrid and cold roofs. Also suitable for Scottish sarking board systems, low...
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Supro Plus - Breathable roof underlay
Reinforced breathable roof underlay with integral adhesive lap tape for sealing against air infiltration to improve thermal efficiency. Suitable for use in all supported and unsupported pitched roo...
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Tyvek® Enercor Roof
Reinforced breathable roof underlay with a metallised low emissivity surface, which blocks radiant heat in summer and reduces radiated heat loss in winter. Suitable for use in all supported and un...
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Tyvek® Firecurb Housewrap
Wall breather membrane with Class B2 fire performance to Din 4102. A lightweight, vapour permeable membrane with high water resistance, providing durable, long-term secondary protection behind exte...
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Tyvek® Housewrap
Breather membrane for timber frame, steel frame and concrete wall systems. A lightweight, vapour permeable membrane with high water resistance, providing durable, long-term secondary protection beh...
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Tyvek® Metal
Metal roof breather membrane incorporating a supportive polypropylene drainage mesh for use beneath all rigid sheet metal roof systems. Allows condensate which can form beneath stainless steel, cop...
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Tyvek® Reflex
Reflective breather membrane for timber frame, steel frame and concrete wall systems. A vapour permeable thermal membrane with high water resistance, providing durable, long-term secondary protect...
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UV Façade
Black UV resistant breather membrane for wall systems with open-jointed external cladding. A highly water resistant, robust membrane, suitable for timber frame, steel frame and concrete wall syste...
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