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.
Roof flashing vs counter flashing.
So it s critical that you choose the best counterflashing system read more.
Counter flashing normally consists of the same material that makes up the primary flashing of the component.
What is roof flashing.
Depending on the construction situation a step flashing roof is sufficient.
Placed opposite to base flashing or above base flashing counter flashing completes the two part team.
Step flashing is a rectangular piece of flashing bent 90 degrees in the center.
Typically counter flashing is glued to the brick with roof tar.
This final layer is called counter cover or cap flashing and commonly consists of aluminum galvanized steel copper tin or even plastic.
Vinyl siding can double as counter flashing as long as the step flashing goes underneath it.
Continuous flashing has always been used at a headwall an intersecting wall at the top of a roof plane and perpendicular to the slope.
The counterflashing diverts water to the base flashing which in turn diverts it to the composition flashing.
The base flashing is installed first followed by interlaying the step flashing between each layer of shingles.
The base flashing is designed to accommodate building movement.
Simply put roof flashing is any piece of sheet metal that forms a joint between the roof and objects that protrude from the roof such as dormers chimneys and pipes in such a manner that they prevent water from leaking through the joint.
And all roofers know that counter flashing is the solution and step two.
Failure of counter flashing is as important as the primary flashings.
Counterflashing also referred to as cap flashing is the first line of defense against water infiltrating your building.
Such a system usually consists of copper counterflashing and base flashing in conjunction with roof composition flashing or coping.
Counter flashing is another piece of metal solidly anchored against the side of the house or brick that completely covers the step flashing.
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.
The counter flashing is then cut into the masonry joint along the edge and bent over the.
Its position is indicated by the red lines to the left.
Is that counterflashing is construction formed metal or elastomeric sheeting secured on or into a wall curb pipe or other surface to cover and protect the upper edge of a base flashing and its associated fasteners while flashing is roofing components used to weatherproof or seal roof system edges at perimeters penetrations walls expansion joints valleys drains and other places where the roof covering is interrupted or terminated.
Counter flashing should be installed after the base and step flashing have been installed between the roofing material and the exterior wall.
The base flashing or apron flashing is the bottom piece.
