When replacing a gas pack with a split system, who should you contact to confirm the roof assembly can support the extra weight?

The best course of action when replacing a gas pack with a split system is to contact a structural engineer to confirm whether the roof assembly can support the extra weight. A structural engineer has the specialized training and expertise to assess the structural integrity of a building, including its roof. They can evaluate the load-bearing capacity of the roof components and determine if any reinforcements or modifications are required to safely accommodate the additional weight of the split system equipment.

While a building inspector may have general knowledge of local building codes and can ensure that installations meet regulatory standards, they typically do not perform detailed structural assessments. Contacting a heating contractor is useful for installation-related questions, however, they may not have the expertise to evaluate structural load capacities. A registered design professional, such as an architect, could also provide insights but might not have the specific structural analysis expertise required for this particular concern. Thus, a structural engineer is the most qualified individual to address this issue appropriately.