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Building codes exist to provide a means to safeguard life and protect the private and public welfare through the regulation of the design, construction practices, construction material quality, location, occupancy and maintenance of buildings and structures. Protection from the risks associated wpc outdoor decking with fires is prevalent throughout the codes, and the fire resistance properties of building materials are especially important. Polyisocyanurate foam plastic insulation, or polyiso for short, meets the most stringent building code requirements for use in buildings of any construction type and is one of the most regulated building products used in the construction of building envelopes.
For example, Section 2603 of the International Building Code (IBC) and Section R314 of the International Residential Code (IRC) prescribe general fire test requirements for foam plastic insulation, in addition to specific fire tests, many of them full-scale building assemblies, for specific applications. composite wood fencing for sale However, not all foam plastic insulating sheathing materials �� or other commonly used combustible sheathing materials, such as oriented strand board (OSB) �C have equal fire performance properties and capabilities. As a result of continuous improvement in the product and years of rigorous testing, the performance of polyiso has been validated in numerous building product tests and in historical practice.
While polyiso has many benefits, its fire performance is one more reason why polyiso is a preferred building envelope insulating material. This technical bulletin provides a synopsis of minimum fire resistance properties required for foam plastic insulation materials and compares data on polyiso with other recognized combustible materials commonly used for building construction, such as polystyrene insulation (i.e., XPS and EPS foams) and OSB. The specific material properties related to fire performanceoutside flooring materials include flame spread and smoke development ratings. In addition, the performance of polyiso with respect to the thermal barrier and ignition barrier requirements of the code are presented. Together, these properties demonstrate the superior performance of polyiso.
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