Sloped Roof Fire Sprinkler Installation

The sloped ceiling may also alter sprinkler spray patterns depending on sprinkler installation details e g.

Sloped roof fire sprinkler installation.

Asprhb33 horizontal base sprinkler. 50 foot diameter spray per sprinkler providing over 1200 sq ft of coverage per set. Installation with fewer sprinklers installation with fewer branch lines a hydraulic advantage. 12 16 7 are considered horizontal and sprinklers shall be permitted to be installed with deflectors horizontal.

Nfpa 13 also requires the use of false or dropped ceilings if ceiling inclines exceed 2 in 12 slopes. Structural fire protection that is quick and easy to set up. Must be offset at least one channel laterally from any ridgeline sprinkler. Flash roof sprinkler system supports up to 24.

Deflector orientation and or standoff distance. 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. Here is a quick summary of the minimum pipe slope requirements for fire sprinkler systems. Deploy on the roof of a structure and around the perimeter of a structure for complete fire protection coverage.

Pipe slope is a critical element in reducing water collection following a sprinkler system drain. Roofs having a pitch not exceeding 2. Centerline of sprinkler must be a minimum of 6 laterally from face of truss see figure 8. Excellent foam aspirating action.

However where sprinklers are installed in the peak below a sloped ceiling or roof surface the sprinkler shall be installed with the deflector horizontal. Water removal is important in that the largest detriment to sprinkler system life corrosion occurs across interfaces between air and water. 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. Non combustible sloped attic spaces and have been developed to produce unique water spray patterns to enhance sprinkler placement while improving fire control.

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. These modified transport dynamics may increase the suppression challenge through increased fire size.