Sloped Roof Fire Sprinkler Installation

Structural fire protection that is quick and easy to set up.

Sloped roof fire sprinkler installation.

Roofs having a pitch not exceeding 2. Here is a quick summary of the minimum pipe slope requirements for fire sprinkler systems. Must be offset at least one channel laterally from any ridgeline sprinkler. A project that contains a light hazard office space with a dry pipe sprinkler system and a 900 sqft area with sloped ceilings about a 5 12 pitch.

Deflector orientation and or standoff distance. Centerline of sprinkler must be a minimum of 6 laterally from face of truss see figure 8. For placement on a sloped surface such as a roof a sub base of wood could be constructed to compensate for the slope or sand bags can be used to achieve that objective. Deploy on the roof of a structure and around the perimeter of a structure for complete fire protection coverage.

Excellent foam aspirating action. Nfpa 13 also requires the use of false or dropped ceilings if ceiling inclines exceed 2 in 12 slopes. Non combustible sloped attic spaces and have been developed to produce unique water spray patterns to enhance sprinkler placement while improving fire control. However where sprinklers are installed in the peak below a sloped ceiling or roof surface the sprinkler shall be installed with the deflector horizontal.

The sloped ceiling may also alter sprinkler spray patterns depending on sprinkler installation details e g. Ensure that the sprinkler deflector is installed with the deflector parallel to the sloped roof above. When compared to standard spray sprinklers which have restricted nfpa 13 installation criteria within attic spaces the models bb sd hip and ap sprinklers fig. Asprhb33 horizontal base sprinkler.

These modified transport dynamics may increase the suppression challenge through increased fire size. Installation with fewer sprinklers installation with fewer branch lines a hydraulic advantage. Per nfpa 13 the remote area should increase by 30 for the dry system nfpa 13 2013 section 11 2 3 2 5 and another 30 for the slope nfpa 13 2013 section 11 2 3 2 4. 12 16 7 are considered horizontal and sprinklers shall be permitted to be installed with deflectors horizontal.

Sprinkler deflector orientation is outlined by fm global data sheet 2 0 installation guidelines for automatic sprinklers 3 and requires parallel to the floor installation. Pipe slope is a critical element in reducing water collection following a sprinkler system drain.