Roof flashing is a vital component of roof construction. It can secure joints and protect areas that receive large amounts of water. The ideal roof flashing will keep water from pooling in susceptible areas and allow the water to move toward the gutters. A roof without flashing would quickly become leaky as the water finds its way into vulnerable areas. Roof flashing’s role in the soundness and integrity of a roof cannot be overlooked. The roof protects the interior of a home from the environment, but weak points can easily let water and other elements inside to cause damage. Vulnerabilities include joints where two slopes meet, chimneys, skylights, and vents.