R905.2.8.5

Section 905.2.8.5 is titled 'Drip edge' and covers requirements for roof coverings. The mandate for drip edge on asphalt shingle roofs, including overlapping, fastening (via a cross-reference to another section of this code), and layering details is established. The purpose of this section is to prevent water damage to the building.

The model shows a partial cutaway view of an asphalt shingle roof covering assembly which explodes and reassembles to show the installation order of components. The drip edge is highlighted.