Several decades of partnership between our firms showcases JJH’s diverse abilities. Work at Pfanstiehl Laboratories encompasses office space, production areas, testing facilities and warehouse environments for their specialty chemical production business.

One of the more recent projects included a 7,500 square foot explosion-proof warehouse and production facility designed to withstand an explosive force of 225 pounds per square foot and constructed of cast-in-place concrete heavily reinforced by rebar sized up to #10. Imbedded steel beam sections, some of which span 50 feet and weigh nearly 113 pounds per linear foot, have fully welded connections to the roof framing. Approximately 1,100 cubic yards of concrete was used to complete the structure. A sliding 10’ x 10’ horizontal door, similar in fabrication to doors used by the military to stop missiles, provides protection to the dock area. A roof monitor and blow-out panels were fabricated on the job. This pressure relief system will detach from the steel framework at a pressure of 20 pounds per square foot and yet remain attached to the building by steel cables. Beneath the site are four buried tanks: three 10,000 gallon tanks and one 18,000 gallon tank.