![]() (450 mm) to less than 2 ft (600 mm)Ģ ft (600 mm) to less than 2 ft 6 in. Maximum Allowable Distance of Deflector Above Bottom of Obstruction (B) ġ ft (300 mm) to less than 1 ft 6 in. Table 10.2.7.1.2 Positioning of Sprinklers to Avoid Obstructions to Discharge Distance from Sprinklers to Side of Obstruction (A) (25 mm) below the bottom of the stems of the tees and complying with Table 10.2.7.1.2 * Installed with deflectors of sprinklers under concrete tee construction with stems spaced less than 7 1/ 2 ft (2.3 m) on centers, regardless of the depth of the tee, located at or above a horizontal plane 1 in.(550 mm) below the ceiling/roof deck only where joist channels are fire-stopped to the full depth of the joists with material equivalent to the web construction so that individual channel areas do not exceed 300 ft 2 (28 m 2) ![]() (25 mm to 150 mm) below composite wood joists to a maximum distance of 22 in. Installed with the deflectors within the horizontal planes 1 in.Installed in each bay of obstructed construction, with the deflectors located a minimum of 1 in.(550 mm) below the ceiling/roof deck where the sprinkler is installed in conformance with 10.2.7.1.2 Installed with the deflectors at or above the bottom of the structural member to a maximum of 22 in.(25 mm to 150 mm) below the structural members and a maximum distance of 22 in. Installed with the deflectors within the horizontal planes of 1 in.Under obstructed construction, the sprinkler deflector shall be located in accordance with one of the following arrangements: Table 10.2.4.2.1(a) Protection Areas and Maximum Spacing of Standard Pendent and Upright Spray Sprinklers for Light Hazard Construction TypeĬombustible unobstructed with no exposed membersĬombustible unobstructed with exposed members 3 ft (910 mm) or more on centerĬombustible unobstructed with members less than 3 ft (910 mm) on centerĬombustible obstructed with exposed members 3 ft (910 mm) or more on centerĬombustible obstructed with members less than 3 ft (910 mm) on centerĬombustible concealed spaces in accordance with 10.2.6.1.4ġ5 parallel to the slope 10 perpendicular to the slope*Ĥ.6 parallel to the slope 3.0 perpendicular to the slope*
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