A roof incorporates a number of different materials that come together to make a strong, protected, and sound roof. One of the many important types of materials used on a roof is the flashing. The flashing is designed to protect the weaker points of the roof from moisture, pests and debris. To better understand the importance of the roof’s flashing, Suburban Roofing will share what the flashing does, and how to know when to replace it.
Purpose of Roof Flashing
Roof flashing is used to cover gaps and week points in the roof. The flashing is use to direct water away from those vulnerable areas. Flashing is often used on valleys on a roof, around chimneys, skylights and vents. The flashing is a thin metal that is adhered down to the roof. However, over time the flashing adhesion can weaken and the flashing can begin to pop up or dent back allowing moisture to seep into the roof.
Types of Flashing
A single roof, depending on its design, will need to have different types of flashing. There are many types of flashing used depending on the roof design and the situation. Here are some of the common types of flashing that may be on your roof.
• Base Flashing: Base flashing is used to keep water out of vertical-to-horizontal intersections where the roof often meets a vertical wall junction. Base flashing is most often installed underneath siding and shingles on a roof.
• Step Flashing: Step flashing is an “L” shaped piece that is installed along corners where the roof meets a side wall.
• Counter Flashing: Counter flashing is used either above or opposite of the base flashing. Counter flashing is most often installed along chimneys or brick walls.
• Continuous Flashing: Continuous flashing, or also known as Apron flashing, are used to reroute water from a vertical wall and slopes on a roof and into a gutter system.
• Valley Flashing: As the name suggests, valley flashing is used in intersections of a roof that create a valley. The valley flashing will direct water into the gutter system.
• Kickout Flashing: Kickout flashing, or also known as diverter flashing, are needed when the gutter system ends right against a sidewall. The kickout flashing helps to prevent water from running down the wall and into the gutter.
• Drip Edge Flashing: Drip edge flashing is installed around the edges of the roof to help prevent water from running into the roof that causes rot and roof leaks.
Roofing, Siding & Gutter Repair Contractors & Gutter Installers in Larchmont, Scarsdale, NY | Greater Westchester & Putnam County, New York | Greenwich, CT
Signs of flashing problems are fairly simple to identify. Any erosion such as rust or discoloration is a sign the flashing is degrading and needs to be replaced. If the flashing is curling or broken you will need to have the flashing repaired. Other signs that you need to have the flashing repaired is when there are water stains or leaks in the attic, in the walls, and on the ceiling. The flashing is removed and new flashing is then put in its place. However, you will need a professional roofer to help replace the flashing to ensure the repairs are done properly. If your flashing is showing signs it needs repair, call Suburban Roofing today.