SIP Wall Penetrations

The internal vertical chase penetration in the SIP core shall have a maximum side dimension of 2-inches (51 mm) centered in the panel core. Vertical chases shall have a minimum spacing of 24-inches (610 mm) on center. A maximum of 2 horizontal chases shall be permitted in each wall panel-one at 14-inches (360 mm) and one at 4-feet (1,219 mm) from the bottom of the panel.

The maximum allowable penetration size in a SIP wall panel shall be limited to a 12-inch (305 mm) circular or 12-inch by 12-inch (305 mm x 305 mm) rectangular section in accordance with Figure 4.7. Over-cutting of holes in facing panels shall not be permitted without an approved design.