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Learn about Roof Flashing

Roof Flashing

Roof flashing underlayment is a metal layer placed under shingles to protect the roof by directing water and other natural elements away from critical areas. Galvanized steel is the most commonly used metal for roof flashing.

Look for durable materials, typically metals such as galvanized steel, zinc, copper, or even stainless steel. Avoid flashing made of lead where possible, because lead is a toxic element when it is released into the environment. It's important to have flashing installed on problematic roof features such as vents, chimneys, and skylights. Without flashing, water and other natural elements could damage roofs in these areas, could lead to roof leaks, rot and in extreme conditions, collapses.

There are four fundamental types of roof flashing that are used on residential homes.

A necessary component of your roof system, extending the life of your building by preventing water leaks.

"The Flash" is the name of a fictional superhero endowed with super speed. The Flash first blazed onto the scene of DC Comics in 1940, and is still zipping across TV screens 76 years later.