Valley flashing is visible from the ground.
How does roof flashing work.
Roof flashing is material that covers joints walls edges and other vulnerable areas to protect against water and wind damage.
Cap flashing mortared or caulked into the chimney laps over the top edges of the other flashings to prevent water from running behind them.
Metal flashing refers to thin pieces of aluminum stainless steel and other weatherproofed metals which are installed on your roof to keep water from getting beneath shingles.
This allows water to run off the edges of each roof into the valley flashing and down to the gutters.
Two ways to flash roof edges.
In this open valley style the shingles over each section of roof do not touch.
It is strategically placed at joints such as where your roof connects with walls or around where your chimney protrudes.
Some of the different types are as follows.
They are installed to overlap and form a gap that exposes the valley flashing.
Continuous flashing protects the joint between a vertical wall and a sloped roof.
It s rolled out into place and then sealed in order to prevent issues like water damage and mold.
Roof flashing is commonly made with aluminum galvanized steel or copper but is sometimes formed with roofing felt rubber or plastic.
For pitched roofs regardless of the application or type of flashing used the purpose of flashing is to direct the flow of water that leaks into the intersection down and away from the interior of the structure to the topside of the roofing material.
Everyone thinks it is the shingles or other roofing material that makes the roof but that part couldn t do the job roof flashing does.
What does it do.
One common method is to lay the edge metal under the eaves membrane and over the rake.
Closer look at flashing.
Flashing helps close a joint in walls or roofing applications to keep water from seeping into the materials used in construction.
The sidewalls are the vertical walls along the outer part of your house referred to as the valleys.
Open valleys have metal flashing to protect this critical area of the roof.
Roof flashing is the unsung hero when it comes to roofing.
Flashing can be made from a variety of materials such as copper roofs aluminum lead or galvanized steel roofing.
Details concrete masonry roofing wrb flashing.
The edge of the roof has thin metal flashing that helps water drip off.
Virtually every house in america has at least one vent pipe or other penetration on the roof.
Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing.
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.
