Properly installed flashing is an indispensable product used on a roof to protect against water damage. Thin pieces of sheet metal are installed around any vulnerable joints on a home’s roof to prevent water penetration over time. While it is a product used by roofers all the time—in fact, every roof has it—many homeowners are not aware of its importance. Flashing that is damaged or removed can cause quite a problem. Luckily, a professional roofing company such as Eagle Watch Roofing can put your mind at ease and replace or install flashing on your home where it is needed.

The Importance of Properly Installed Flashing [infographic]

Different Types Of Flashing

There are two basic types of flashing. One is exposed flashing, and the other is concealed flashing. Exposed flashing is usually constructed out of sheet metal. Materials may differ, but a durable and corrosion-resistant metal is ideal. Galvanized steel is used often, both for its strength and durability. Aluminum is also common, especially on odd-shaped roofs, due to its easy malleability. Specialty metals like copper and zinc are usually custom made to match a copper or other custom roof. Perfect for rain and snow, exposed flashing is the most common type of flashing used.

Concealed flashing is made out of weatherproof material such as rubber or PVC. Backed with adhesive, this is a convenient product to get the job done quickly, and it is easily hidden. It is less common on roofs but is often used around windows or window sills.

Sheet metal roof flashing can be further divided by its layout and how it is installed.

  • Continuous flashing is a single long strip of sheet metal. It is most commonly used at the joint where a vertical wall meets a sloped roof.
  • Valley flashing is installed where two roof slopes meet, and it directs water down the roof and into the gutter.
  • Step flashing is commonly used around protrusions such as chimneys. The flashing is bent into an L shape to fit the horizontal of the roof and vertical of the protrusion. Pieces of step flashing are overlapped so no water can get behind them.
  • Vent pipe flashing is specially shaped to fit around a vent pipe. Its base lies under the shingles, and it rises upward in a cone shape to meet the pipe.

Other types of flashing may also be used for particular situations where a reliable water barrier is needed.

Proper Installation

Flashing is a crucial component of any roof. However, it must be installed appropriately to reap the full benefits, and it must be installed in the right locations. Flashing should be flush with the surface of the house or roof, and it should not move. Flashing that is even a little bit loose will allow moisture inside.

It is best to have a professional roofing company install, inspect, and repair the flashing on your home. A professional will know what your home’s needs are concerning waterproofing and weatherproofing. Also, certain materials work better for certain homes.

Eagle Watch Roofing is a professional roofing company serving Newnan, Peachtree City, and the entire Metro Atlanta Area. We can bring a team of professionals to quickly assess and install flashing affordably and effectively. Deflecting water away from the roof of your home will help protect your investment and keep it safe and structurally sound for many more years to come.