What Are Edge and Off-Edge Vents and What Do They Do? Edge vents and off-edge vents are intake vents that allow air to enter the attic space through a slot cut either at the eaves (edge vent) or upslope from the eaves on the roof (off-edge vent). It’s installed under...
What Is Counterflashing and What Does It Do? Counterflashing is an upside-down L-shaped metal piece that protects roof-to-wall transitions, like you would find on a brick chimney. Step flashing protects the roof-to-wall intersection, while counterflashing covers the...
What Is a Step Flashing & What Does it Do? Step flashing is a series of individual metal pieces installed where a roof surface meets a vertical wall, such as a chimney or dormer. Each piece is woven between an interlocking shingle course, with one half of the step...
What Is a Pipe Boot & What Does it Do? Also called pipe jacks or pipe flashings, pipe boots provide a watertight seal between pipes or other round roof terminations and the roof itself. They are used to seal plumbing vents, radon exhaust vents, bath fan...
What Is Heater Flue Flashing and What Does It Do? Heater flue flashing seals the area where a heater’s vent pipe passes through the roof’s surface, preventing water intrusion while allowing exhaust gases to escape safely. Heater flues are installed on nearly every...