Roof Counter Flashing Definition

A strip of sheet metal often built into masonry and turned down over other flashing.

Roof counter flashing definition.

Pipe flashing pipe boot vent boot pipe flange a product used where pipes penetrate roofs. Used to prevent water from entering the joints and the exposed upturned edges of base flashing on a roof. Copyright 2003 by mcgraw hill companies inc. Counter flashing should be installed after the base and step flashing have been installed between the roofing material and the exterior wall.

These edges are known as eaves roof edges that extend beyond the exterior walls of the home and valleys the low angled areas that are formed where two sloping roof planes intersect and form a seam. It is used for roof to wall flashing. It is usually ornamental but may be used for. Cupola a structure rising above the main roof.

Step flashing soaker base flashing pieces of flashing material which overlap each other in steps. Course a horizontal unit of roofing running the length of the roof. Step flashing is a rectangular piece of flashing bent 90 degrees in the center. Counter flashing see cap flashing.

Counter flashing is the final layer of a three part waterproof barrier installed between a roof and a vertical wall or chimney. The first two layers are called base flashing and step flashing. Chimney flashing a general term for flashing a chimney. Placed opposite to base flashing or above base flashing counter flashing completes the two part team.

Counterflashing also referred to as cap flashing is the first line of defense against water infiltrating your building. This term can be used in different scenarios however it generally refers to a waterproofing detail that is located along a roof edge over a window or door or any other area that will require waterproofing. A cricket is generally not required. Counterflashing is the piece of metal that is applied to the masonry wall designed to shed water off of the wall and down onto the roof surface.

That slips under the actual flashing. Counter flashing normally consists of the same material that makes up the primary flashing of the component. A metal used at the edges of a roof. Counter flashing is the opposing piece of metal aluminum fabric etc.

Flashing is the corrosion resistant metal applied to a roof at the edges of walls or chimneys. A strip of sheet metal in the form of an inverted l built into a vertical wall of masonry and bent down over the flashing to make it watertight. Counter flashing cap flashing covers a base flashing. The term reglet flashing refers to an installation method for counter flashing not a separate layer.

Mcgraw hill dictionary of architecture and construction.