Prefabricated grease duct systems are tested and listed under the Underwriters Laboratories UL-1978 listing and the UL-2221 classification for zero clearance to combustibles. Proper design… Read More »

Free-standing stacks are highly engineered. Most projects require a complete structural analysis and review by a licensed structural professional. Contact us to design or review… Read More »

Large intake and exhaust plenums can be designed utilizing double wall acoustical panels. System design needs to take into account the insulation requirements of the… Read More »