Roof flashings are a critical component of your roof system. Although sometimes an afterthought, your roof will not perform properly without them. In this article, we will discuss the importance of roof flashings along with the various types.
What are roof flashings?
Roof flashings are designed to prevent water penetration and leaks in the vulnerable areas of your roof where different roofing planes intersect or where a roof penetration exists (pipes, skylights, etc). Simply put, there are places on your roof that are more vulnerable to weather penetration, and flashings are used to shore up those areas.
How do roof flashings work?
Roof flashings act as a protective barrier. They block water from penetrating the roof’s vulnerable areas and redirect the water away to safer areas. Flashings can make all the difference when it comes to protecting your family and investment.
What types of flashings are commonly used in roofing?
Several types of roof flashings are commonly used in the US. Each type of flashing is designed to protect a specific area of the roof.
Step / Chimney flashing
Step or chimney flashings are designed to protect sections where a sloped roof and vertical surface intersect. Roofs come in different shapes, so this type of flashing may be used in several configurations, but the chimney area is the most common. Step and chimney flashings are generally made of metal.
Valley flashings are used in roof valleys where two sloping surfaces meet. Due to the way water flows off the roof, this is an area where water pools and creates problems. Valley flashings are designed to direct the flow of water away from the valley so that pooling and leaks do not occur. Valley flashings are typically made of metal or some other type of waterproof material.
Pipe flashings protect the area surrounding pipes, such as vent pipes and other roof penetrations. They are commonly made of metal or rubber and fit snugly around the pipe or other roof penetration.
Drip edge flashing
Drip edge flashings are installed along the edges of the roof and are designed to direct the flow of water away from the fascia. Drip edge flashings are generally made of metal with a downturned edge.
Skylight flashings are designed to seal the area around the skylight to prevent leaks. Skylights are notoriously susceptible to leaks, so extra care must be taken when installing flashings. When properly installed, skylight flashings keep the area watertight and do not allow any water penetration or moisture buildup.
Eave flashings are installed along the eaves and fend off wind-driven rain. These types of flashings typically extend beyond the edge of the roof and are constructed of metal.
CMR is your roof flashing expert
Roof flashings are amongst the most critical components of your roof. Without properly installed flashings, your roof will not repel water and other weather-related problems. The roofing experts at CMR have successfully installed thousands of water-tight roofs all across the country. Please contact us to learn more about our fast, accurate, and reliable installation process.