Building Insulation and Fire Safing*

The building insulation and fire safing (referred to here as insulation) scope of work is managed in different ways. The insulation work is commonly performed by a second-tier subcontractor under an agreement with the framing subcontractor. This is not always the case, as the general contractor may also decide to contract directly with an insulation subcontractor. For residential or office buildings with nearly all of the insulation within framed walls, the framing subcontractor traditionally assumes responsibility for the insulation work. Some structures will require a considerable amount of insulation in locations other than within the studframed walls and ceilings, such as rigid insulation in the ceiling of a high bay warehouse. A structure might also require black-faced sound-absorptive rigid panels surrounding a theatrical stage or a substantial amount of fire safing at expansion joints. Another project might require a significant amount of spray-applied insulation. Under these various conditions that require a considerable amount of insulation other than within the framed walls and ceilings, it is logical for the general contractor to directly employ an insulation subcontractor. This division of work should be made by the general contractor by considering the various unique circumstances of the project.