R703.15.2

Section R703.15.2 is titled 'Furred cladding attachment' and covers requirements for wall coverings. Where exterior wall coverings are installed on wood furring over foam sheathing (installed on wood framing), the requirement for fasteners to comply with a table in this code, where furring is placed horizontally, for the furring to be preservative-treated in accordance with another section of this code, and for the fasteners used on such furring to be corrosion resistant in accordance with another section of this code is established. The purpose of this section is to prevent detachment from the structure and water intrusion.

The model shows a cutaway section of an exterior wood frame wall with several rows of vinyl siding being installed on furring strips over foam insulation (covered by a water-resistive barrier).