The following details show acceptable approaches to envelope intersections for metal building
systems applicable to heating climates. Figure 4.6.5 shows a wall/floor connection in a concrete
frame building (Brand). The critical item here is the design and installation of the joint to maintain
the continuity of the insulation and air barrier systems. A membrane air barrier is installed at the
inside of the panel and fibrous insulation is installed to keep the air barrier warm and to maintain
insulation system continuity. The insulation is covered with a plate that acts as a rainscreen.
Figure 4.6.5 Wall / Floor Connection - Concrete Frame (Brand)
Figure 4.6.6 shows a wall/floor connection in a steel frame building with a panel joint system that is
different from the above example (Brand). The panel edges are designed to form a draining joint;
an outer weather seal and an inner air seal are installed in the field.
Figure 4.6.6 Wall / Floor Connection - Steel Frame (Brand)