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NUMERICAL STUDY ON FIRE HAZARD ASSOCIATED TO EXTERNAL THERMAL INSULATION CLADDING SYSTEMS
Abstract
The significant increase in the price of energy resources leads today's society not only to a reconsideration of energy conservation policies but also to the encouragement of architects, builders, and building owners to use thermal insulation and exterior wall finishing systems. The design of thermal insulation for facades is a constructive decision, in which the layer with thermal insulation properties is fixed on the load-bearing side of the walls, with the help of adhesives and/or by mechanical means, followed by the application of a reinforcement and finishing layer. These operations have the role of ensuring the normative values of the thermal indicators specific to the wall structures, their protection against environmental influences, ensuring the optimal microclimate of the interior compartments of the building as well as providing an attractive, aesthetic appearance to the facades and structural elements. Wet exterior cladding or composite thermal insulation systems using polystyrene (ETICS) provide a complete and very cost-effective solution to meet the above-described goals. However, multiple examples of fires in the scientific literature, with the spread of fire on the support of thermal insulation and finishing systems of buildings, indicate their particular danger. This fire risk is directly related to the chosen structural solution for cladding and the type of thermal insulation material used, being also influenced by noncompliance or violation of specific technical regulations or rules on the fire safety of materials and buildings. Through the application of CFD-based computational fire field models, the associated risks for a custom 7-storey building with external cladding were considered in this study. The aim was to observe the fire spread on one side of the building, insulated using the ETICS exterior insulation and finishing system. As an insulating material, two types of expanded polystyrene (EPS) were used, with different fire resistance properties. The study results demonstrate the importance of choosing the right technical solution in terms of fire safety and the need to apply methods to limit the vertical spread of fire.
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References11
Barreira E., de Freitas V.P., Experimental study on the hygrothermal behavior of ETICS, Build Environ., 63:31-9, 2013. DOI: 10.1016/j.buildenv.2013.02.001
Hosseinpour A., Eslami R., Kaviani K., and Esfahani A., Effect of expandable graphite of the building with a minimum width of 0,30 mm flammability of polystyrene foams, 12th International Seminar on Polymer Science and Technology, 2016.
Mariappan T., Khastgir D., Singha N., Manjunath B. and Naik Y, Effect of Expandable Graphite on the Properties of Intumescent Flame-Retardant Polyurethane Foam, Journal of Applied Polymer Science, vol. 100 (5), pp. 2586-2594, 2008 DOI: 10.1002/app.28763
Wang S., Huang X., Chen H., Liu N., Rein G., Ignition of low-density expandable polystyrene foam by a hot particle, Combustion and Flame, 162: 4112-8, 2015. DOI: 10.1016/j.combustflame.2015.08.017
Wessie S.S., Chang M.K., Marr K.C., Ezekoye O.A., Experimental and analytical Characterization of Firebrand Ignition of Home Insulation Materials, Fire Technology, 55:1027-56, 2019. DOI: 10.1007/s10694-019-00818-8
Zhou H., Yoshika H., Noguchi T., Wang K., Huang X., Fire performance of EPS ETICS Facade: Effect of Test Scale and Masonry Cover, Fire Technology, DOI: 10.1007/s10694-021-01195-x 2022.
Mazzucchelli E., Rigone P., de la Fuente Ceja B., Giussani P., Fire Safety Facade Design and Modelling, Journal of Facade Design and Engineering, 8, pp. 21-42. DOI: 10.7480/jfde.2020.1.4703 2020.
McGrattan K., Baum H., Rehm R., Hamins A., Forney G., Floyd J., Hostikka S., Prasad K., Fire Dynamics Simulator (Version 3) - Technical Reference Guide, Gaithersburg, MA, USA: National Institute of Standards and Technology, 2002. DOI: 10.6028/nist.ir.6784e2002
McLaggan M., Flecknoe-Brown K. W., Dragsted A., Van Hees P., Heat release and flame spread assessment of insulation in External Thermal Insulation Composite Systems (ETICS) facades, IOP Conf. Series: Journal of Physics: Conf. Series, vol. 1107, 2018. DOI: 10.1088/1742-6596/1107/3/032021
Zhang M., Liu X., Chen Z., Wang J. S. W., Experimental study of the heat flux effect on combustion characteristics of commonly exterior thermal insulation materials, Procedia Engineering, vol. 84, pp. 578-585, 2014. DOI: 10.1016/j.proeng.2014.10.470
Bakhtiyari S., Akbari L. T., Barikani M., The Effective Parameters for Reaction-tofire Properties of Expanded Polystyrene Foams in Bench Scale, Iranian Polymer Journal, vol. 19, nr. 1, pp. 27-37, 2010.
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