R905.2.8.1

Section 905.2.8.1 is titled 'Base and cap flashing' and covers requirements for roof coverings. The mandate for base and cap flashing for asphalt shingles to be installed in accordance with the manufacturer's installation instructions, the material they are made from, and their minimum thickness is established. The purpose of this section is to prevent water damage to the building.

The model shows a piece of base and cap flashing.