After a devastating tornado hit the town of Marshalltown in July of 2018, Lennox Industries made plans to rebuild the areas that were destroyed. Henning Companies is responsible for the design and construction of the approximately 102,600 square-foot warehouse/factory. Henning further developed the schematic design and criteria to build back the warehouse, improve the shipping and receiving component, add a hardened area for storm shelter, add a hazardous storage area, and bring everything up to code. The pre-engineered metal building attached to the existing facility, utilizes 80% of the existing foundations. During construction, Lennox was able to operate at full capacity.