The court granted the insured's motion to strike the testimony of the insurer's expert because the opinion lacked sufficient explanation or analysis. Affinity Mut. Ins. v. Thacker Air Conditioning Refrigeration Heating, 2019 U.S. Dist. LEXIS 84713 (N.D. Ind. May 20, 2019).

The insured owned a market that needed renovations. The roof over an addition to the market extended from the wall of the extension to the top of the existing roof. The area between the old and new roofs was filled with blown-in insulation, so that the structural support from the new overbuilt roof was not visible. The weight of the overbuilt roof rested on top of the existing roof at the point where they met. This added additional weight on the trusses supporting the main roof.

In 2014, the market upgraded the building with heating and insulation. Thacker was a subcontractor for work on the hearing system. Six gas furnaces, spaced about 35 feet apart along the length of the building, were placed by Thacker. The total weight of each unit was estimated at 280 pounds.