Investigation of the Effectiveness of Fire Resistant Durable Agents on Residential Siding Using an ICAL-Based Testing Protocol.
Investigation of the Effectiveness of Fire Resistant
Durable Agents on Residential Siding Using an ICAL-Based
Grand, A. F.
NIST GCR 00-792; 152 p. May 2000.
Sponsor:National Institute of Standards and Technology,
Available from: National Technical Information Service
(NTIS), Technology Administration, U.S. Department of
Commerce, Springfield, VA 22161.
1-800-553-6847 or 703-605-6000;
Order number: PB2000-106029
calorimeters; fire retardants; flame retardants; gels;
heat release rate; fire extinguishing agents; polyvinyl
chloride; siding; windows; wood; water
A test protocol based on the Intermediate Scale Heat
Release Calorimeter (ICAL) was used to evaluate the
potential fire retardant effects of two water-based
durable agents applied to wood, to plastic (vinyl)
siding and to small windows mounted into wood siding.
The protocol included exposure of one meter square
specimens to constant heat fluxes of 15 and 25 kW/m2 in
the presence of an open-flame ignition source. Wood
panels treated with the fire-retarding gel were compared
to untreated panels and to panels treated only with
water. Time delay to ignition of the specimen was the
primary measured property, while mass changes prior to
and during the fire exposure were recorded. The gel
treatments extended the times to ignition of painted
wood siding from around 30 seconds for untreated panels
to more than 300 seconds of exposure at 25 kW/m2. Drying
the treated panels at 1 kW/m2 for an hour generally did
not significantly affect the performance of treated
panels with respect to times to ignition.