Patent ID: 8083002
Filing Date: 2011-12-27
Classification: A62C,B05B

Abstract:
1. A method of fire protection of an attic space having a roof above a ceiling deck so as to define a concealed space having an occupancy classification therebetween with a protection area of no greater than 3,000 sq ft., the method comprising: defining the protection area as being equivalent to a horizontal footprint area as defined by the sloped roof, the roof being sloped with a pitch exceeding 1 in 6; disposing at least one upright sprinkler having a deflector disposed beneath the sloped roof and coupled to a pipe system, the deflector providing a spray pattern that is substantially circular cylindrical about the at least one upright sprinkler; and defining a hydraulic demand of the at least one upright sprinkler being based on a hydraulic design area equivalent to the horizontal footprint such that the hydraulic demand does not require that the hydraulic design area be increased to account for the sloped roof.