Which of the following is typically not considered obstructed construction for fire sprinkler design?
a. concrete tees with solid members 5 inch wide and 2 ft tall
b. heavy timber construction with 4 inch solid wood beams
c. beam and girder construction with 6 inch steel beams 6 ft apart
d. panel construction with panels under 300 sqft
Solution | Posted 10/07/20
b. heavy timber construction with solid wood beams, per NFPA 13-2016 A.3.7.2 as unobstructed construction. Concrete tees, beam and girder construction, and panel construction as described all fit the associated definitions of obstructed construction in NFPA 13 A.3.7.1 (2), (1) and (4) respectively.
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