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Fire safety of FAÇADES with polystyrene foam insulation

  • As part of energy‐efficient renovations or for the construction of new buildings often external thermal insulation composite (ETIC) are used. In 2015, in Germany almost 37 million square meters were installed. But several fires involving ETIC systems with polystyrene foam (EPS) insulation in Germany led to an extensive discussion about fire safety of such systems. A collection initiated by the Frankfurt fire service of façade fires which include polystyrene insulation foam1 shows that more than two thirds of all reported fires started in front of buildings. In half of these fires burning waste containers were the first burning objects. Consequently, German building authorities called for tests of existing approved ETIC systems with EPS insulation in a fire Scenario representing a burning waste container. As these tests revealed weaknesses in the existing ETIC systems measures were introduced to enhance the systems. However, the recently introduced German test standard DIN 4102‐20 doesAs part of energy‐efficient renovations or for the construction of new buildings often external thermal insulation composite (ETIC) are used. In 2015, in Germany almost 37 million square meters were installed. But several fires involving ETIC systems with polystyrene foam (EPS) insulation in Germany led to an extensive discussion about fire safety of such systems. A collection initiated by the Frankfurt fire service of façade fires which include polystyrene insulation foam1 shows that more than two thirds of all reported fires started in front of buildings. In half of these fires burning waste containers were the first burning objects. Consequently, German building authorities called for tests of existing approved ETIC systems with EPS insulation in a fire Scenario representing a burning waste container. As these tests revealed weaknesses in the existing ETIC systems measures were introduced to enhance the systems. However, the recently introduced German test standard DIN 4102‐20 does not take These changes into account. The DIN test represents a fire where flames emerge an opening but is downscaled regarding the size of the fire load and therefore does not represent a fully developed fire in a room. In ETIC systems with EPS insulation, the render is an important factor for the fire performance of these systems as collapse of the render usually leads to very rapid fire development. Intermediate scale tests with ETICs specimens indicate that mechanical damages of the render weaken the System significantly. Challenges and possible measures to enhance fire safety of ETIC systems are discussed.zeige mehrzeige weniger

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Autor*innen:Anja Hofmann-BöllinghausORCiD, S. Kaudelka, S. Hauswaldt
Dokumenttyp:Zeitschriftenartikel
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Fire and Materials
Jahr der Erstveröffentlichung:2018
Organisationseinheit der BAM:7 Bauwerkssicherheit
7 Bauwerkssicherheit / 7.5 Technische Eigenschaften von Polymerwerkstoffen
Verlag:Wiley
Verlagsort:Weinheim
Jahrgang/Band:42
Ausgabe/Heft:5
Erste Seite:466
Letzte Seite:474
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurbau
Freie Schlagwörter:Facade; Fire; Polystyrene
Themenfelder/Aktivitätsfelder der BAM:Infrastruktur
Infrastruktur / Fire Science
DOI:10.1002/fam.2662
ISSN:0308-0501
ISSN:1099-1018
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:22.08.2018
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:29.11.2018
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