This chapter identifies and addresses common areas on the roof surface that are prone to water intrusion. It provides an overview of valuable instruments and techniques to aid in the investigation of water leaks attributable to roofing issues. Steep-sloped roofing is generally defined as elevations with a pitch of 2:12 or greater, although some definitions of steep-sloped roofs set values at 4:12 or greater. In steep-sloped applications, the exterior wood members along roof eaves and rake lines are susceptible to exposure from the weather and damage from possible water entry. Most modern residential homes are typically constructed with roof overhangs as part of the eave and rake construction and make water infiltration at these areas more difficult to reach the interior portions of the home. Proper gutter design, installation, and maintenance are necessary to minimize water damage from rain, ice melt, and melting snow from entering the roof system.