Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Residential Exterior Wall Reaction to Post‐Flashover Compartment Fires
https://orcid.org/0000-0002-8773-5047
https://orcid.org/0000-0001-9426-7598
https://orcid.org/0000-0002-4364-9673
ABSTRACTLarge outdoor fires involving building‐to‐building fire spread are catastrophic, often resulting in significant loss of life and property. Previous research investigating ignition of buildings from exterior fires has focused on exposures from wildland fuels, which typically have shorter residence times compared to structure fires. This paper presents the details of full‐scale building‐to‐building fire spread experiments conducted on residential exterior wall assemblies. Three wall assemblies sided with exterior plywood panels (hereafter referred to as T1–11), exterior insulation finishing system (EIFS), and fiber cement board were exposed to a post‐flashover compartment fire at 1.8, 3.0, and 4.3 m separation distances to evaluate reaction‐to‐fire characteristics. All three wall assemblies tested ignited from the source exposure within this range of separation distances, which are common in residential areas with high structure density. Combustible siding (T1–11 and EIFS) ignited at the 3.0 and 4.3 m separation distances, whereas sheathing behind the noncombustible siding (fiber cement) wall assembly ignited at the 1.8 m separation distance. Compared to results from experiments with an identical protocol that examined the performance of double‐pane window assemblies, the maximum heat load (time‐integrated heat flux) at the time of ignition at the 3.0 m separation distance was consistently higher than the heat load at the time of cracking of the outer pane of plain (annealed) glass window assemblies but lower than that for cracking of both panes of a double‐pane window assembly. Current codes, standards, and test methods should address fire penetration, as well as vertical and lateral flame propagation of exterior wall assemblies.
Residential Exterior Wall Reaction to Post‐Flashover Compartment Fires
https://orcid.org/0000-0002-8773-5047
https://orcid.org/0000-0001-9426-7598
https://orcid.org/0000-0002-4364-9673
ABSTRACTLarge outdoor fires involving building‐to‐building fire spread are catastrophic, often resulting in significant loss of life and property. Previous research investigating ignition of buildings from exterior fires has focused on exposures from wildland fuels, which typically have shorter residence times compared to structure fires. This paper presents the details of full‐scale building‐to‐building fire spread experiments conducted on residential exterior wall assemblies. Three wall assemblies sided with exterior plywood panels (hereafter referred to as T1–11), exterior insulation finishing system (EIFS), and fiber cement board were exposed to a post‐flashover compartment fire at 1.8, 3.0, and 4.3 m separation distances to evaluate reaction‐to‐fire characteristics. All three wall assemblies tested ignited from the source exposure within this range of separation distances, which are common in residential areas with high structure density. Combustible siding (T1–11 and EIFS) ignited at the 3.0 and 4.3 m separation distances, whereas sheathing behind the noncombustible siding (fiber cement) wall assembly ignited at the 1.8 m separation distance. Compared to results from experiments with an identical protocol that examined the performance of double‐pane window assemblies, the maximum heat load (time‐integrated heat flux) at the time of ignition at the 3.0 m separation distance was consistently higher than the heat load at the time of cracking of the outer pane of plain (annealed) glass window assemblies but lower than that for cracking of both panes of a double‐pane window assembly. Current codes, standards, and test methods should address fire penetration, as well as vertical and lateral flame propagation of exterior wall assemblies.
Residential Exterior Wall Reaction to Post‐Flashover Compartment Fires
https://orcid.org/0000-0002-8773-5047
https://orcid.org/0000-0001-9426-7598
https://orcid.org/0000-0002-4364-9673
ABSTRACTLarge outdoor fires involving building‐to‐building fire spread are catastrophic, often resulting in significant loss of life and property. Previous research investigating ignition of buildings from exterior fires has focused on exposures from wildland fuels, which typically have shorter residence times compared to structure fires. This paper presents the details of full‐scale building‐to‐building fire spread experiments conducted on residential exterior wall assemblies. Three wall assemblies sided with exterior plywood panels (hereafter referred to as T1–11), exterior insulation finishing system (EIFS), and fiber cement board were exposed to a post‐flashover compartment fire at 1.8, 3.0, and 4.3 m separation distances to evaluate reaction‐to‐fire characteristics. All three wall assemblies tested ignited from the source exposure within this range of separation distances, which are common in residential areas with high structure density. Combustible siding (T1–11 and EIFS) ignited at the 3.0 and 4.3 m separation distances, whereas sheathing behind the noncombustible siding (fiber cement) wall assembly ignited at the 1.8 m separation distance. Compared to results from experiments with an identical protocol that examined the performance of double‐pane window assemblies, the maximum heat load (time‐integrated heat flux) at the time of ignition at the 3.0 m separation distance was consistently higher than the heat load at the time of cracking of the outer pane of plain (annealed) glass window assemblies but lower than that for cracking of both panes of a double‐pane window assembly. Current codes, standards, and test methods should address fire penetration, as well as vertical and lateral flame propagation of exterior wall assemblies.
Residential Exterior Wall Reaction to Post‐Flashover Compartment Fires
Fire and Materials
Gorham, Daniel J. (Autor:in) / Willi, Joseph M. (Autor:in) / Horn, Gavin P. (Autor:in)
23.02.2025
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
On Flashover in Compartment Fires
| British Library Conference Proceedings | 1995
Evaluation of Models of Fully Developed Post-flashover Compartment Fires
| Online Contents | 2005
Nonlinear Dynamics of Flashover in Compartment Fires
| British Library Online Contents | 1993