Fire Sprinklers Installed For Sloped Roof

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.

Fire sprinklers installed for sloped roof.

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. When compared to standard spray sprinklers which have restricted nfpa 13 installation criteria within attic spaces. Roof top sprinkler systems fact. Sprinklers must be installed with the frame arms perpendicular to the roof slope.

These modified transport dynamics may increase the suppression challenge through increased fire size. Sprinklers are one of the oldest methods but one of the newest technologies in wildfire control and property fire protection in wildland areas. 50 foot diameter spray per sprinkler providing over 1200 sq ft of coverage per set. Deflector parallel to the sloped roof above.

Centerline of sprinkler must be a minimum of 6 laterally from face of truss see figure 8. 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. Rooftop sprinklers are a proven method of improving the chances that a building will survive a wild fire according to various studies. These sprinklers are specifically intended for use in combustible and non combustible sloped attic spaces and have been developed to produce unique water spray patterns to enhance sprinkler placement while improving fire control.

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. Our roof sprinkler systems have been designed specifically for structural perimeter protection from urban interface wildland fires features include. 12 16 7 are considered horizontal and sprinklers shall be permitted to be installed with deflectors horizontal.

However where sprinklers are installed in the peak below a sloped ceiling or roof surface the sprinkler shall be installed with the deflector horizontal. Additionally as with all. Roofs having a pitch not exceeding 2. Deflector orientation and or standoff distance.