Wall flashing and kick-out diverters are required in the 2009 and 2012 International Residential Code (IRC) Section R703. 8 and 2015 IRC Section R703. 4. Deluging rains can pour thousands of gallons of water onto a home's roof in a single storm.

When did kickout flashing become code?

Kickout flashings have been required by the International Residential Code (IRC) since 2009, yet I've rarely seen them installed on new homes and additions. Part of that might be the original awkward language that didn't even include the term “kickout flashing.” In the 2012 IRC, Section R903.

Is flashing required on roof?

Flashings are required to provide weather-resistance for the various junctions on a roof or wall structure. Flashings are an important part of the cladding design, and have a significant impact on the aesthetic appearance of the building.