Full-Scale Fire Study of Spatial Separation

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DOIResolve DOI: http://doi.org/10.4224/20377739
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TypeTechnical Report
Series titleResearch Report, NRC Institute for Research in Construction; Issue 195
Physical description30 p.
AbstractWith rising land and infrastructure costs and the demand for affordable housing, there is increasing pressure to allow new houses be built closer together. A series of full-scale fire experiments were conducted to provide data to address spatial separation issues and measures to limit potential fire spread between adjacent houses. Wall assemblies with different exterior finishing (exterior gypsum board, aluminum siding on waferboard sheathing, or waferboard) were positioned at various wall-to-wall and eave-to-eave separation distances. The fire compartment contained a fuel package of wood mixed with ABS plastic pipes comprising a fuel load of 16.9 kg per square meter of the floor area. Flame issued from the fire compartmentthrough a rough opening on the exposing wall. Results showed the need for maintaining adequate spatial separation, including eave separation. Aluminum claddings on combustible sheathing or gypsum board as exterior sheathing, showed its effectiveness in reducing the danger of fire spread between houses built at a close distance and provided protection against fire spread for a period within the typical response time of a fire department. Blocking attic ventilation through eaves adjacent to neighbouring houses appeared to be another measure to reduce the fire spread potential.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number17100
NPARC number20377739
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Record identifiera3eb57c3-04cb-4231-b2ad-e99c62dc9684
Record created2012-07-24
Record modified2016-10-03
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