Fire Sprinklers Installed For Sloped Roof

Deflector parallel to the sloped roof above.

Fire sprinklers installed for sloped roof.

Additionally as with all. Deflector orientation and or standoff distance. When compared to standard spray sprinklers which have restricted nfpa 13 installation criteria within attic spaces. When rooftop sprinklers are activated they spray water high up in the air which lands on the roof trees and other surfaces that are within range.

Rooftop sprinklers are a proven method of improving the chances that a building will survive a wild fire according to various studies. Sprinklers are one of the oldest methods but one of the newest technologies in wildfire control and property fire protection in wildland areas. However where sprinklers are installed in the peak below a sloped ceiling or roof surface the sprinkler shall be installed with the deflector horizontal. 50 foot diameter spray per sprinkler providing over 1200 sq ft of coverage per set.

At higher roof angles the actual location of the fire source relative to the sprinkler locations produced increasingly skewed and decreased water flux patterns including a higher number of sprinklers activated. Must be offset at least one channel laterally from any ridgeline sprinkler. In the face of an advancing wildfire a structure with a properly implemented firesmart program in combination with an operational exterior rooftop sprinkler system has a survival probability of above 90. The sloped ceiling may also alter sprinkler spray patterns depending on sprinkler installation details e g.

Centerline of sprinkler must be a minimum of 6 laterally from face of truss see figure 8. Roofs having a pitch not exceeding 2. Sprinklers must be installed with the frame arms perpendicular to the roof slope. Sidewall sprinklers are required to have the deflector aligned parallel to ceiling or roof slopes nfpa 13 2002 2016 editions section 8 7 4 2 and where the slope exceeds 2 in 12 the sprinkler must be located at the high point of the slope and be positioned downward nfpa 13 2002 2016 editions section 8 7 4 2 2.

Deploy on the roof of a structure and around the perimeter of a structure for complete fire protection coverage. Roof top sprinkler systems fact. These modified transport dynamics may increase the suppression challenge through increased fire size. For the 33 degree roof inclination equivalent to an 8 in 12 roof slope the water flux on top of the fire source is reduced by 50.