Is Roof Drip Edge Necessary?

A roof drip edge is a metal flashing that plays a crucial role in protecting your property from damage by preventing water from seeping under the shingles and into the roof decking. Despite its importance, some homeowners and contractors may question whether it’s necessary or just an unnecessary expense. In this article, we will explore the significance of roof drip edge and its benefits, including how it works, and why proper installation of water redirection is essential to the long-term health of your roof.

What is Drip Edge on a Roof?

The roof drip edge is a protective part of a roofing system typically made of metal and installed along the edge of the roofline. It is designed to direct water away from the roof and into the gutters, stopping water from penetrating the roof decking or getting underneath the shingles. The drip edge is the first line of defence against water damage and wind, protecting your roof and home exterior. In addition to its functional benefits, drip edge also enhances the roof’s appearance, giving it a finished look by covering the rough edge of the roof deck.

What Happens if You Don’t Put a Drip Edge on a Roof?

If a drip edge is not installed on a roof, it can leave your home vulnerable to water damage and wind. Without a drip edge, water can seep under the shingles and into the roof decking, potentially causing the wood to rot, internal structural damage, or producing harmful mould growth. Alternatively, the risk of water damage can also be mitigated by the professional installation of a starter course to redirect water into eavestroughs. This may result in the bending of the first row of shingles, but otherwise won’t cause significant damage to the roof. It is crucial to install a measure of protection, whether through drip edge or starter course, to shed water from the roof to prevent long-term damage.

How Much Drip Edge Do I Need?

The amount of drip edge needed for a roofing project will depend on the size and shape of the roof. To determine how much drip edge you need, measure the perimeter of your roof and add 10% to account for overlaps and cuts. The amount of drip edge needed will also depend on the pitch of the roof, as steeper roofs may require a longer drip edge to accommodate the angle. It’s important to ensure that the drip edge extends past the fascia board by at least 1/4 inch to ensure adequate water drainage. Consulting with a professional roofing company is your best bet to accurately measure your roof and ensure proper installation.

In Summary:

A roof drip edge is a metal flashing installed along the roofline that directs water away from the roof and into the gutters. Installing a roof drip edge or starter course is an essential part of the health of your roof that avoids water damage to your home’s exterior, and structural integrity, and prevents health problems from mold growth. When deciding how much drip edge you need for your roofing project, always factor in 10% extra material to account for waste, as well as an overhang of at least 0.6cm (1/4 inch). By understanding the significance of roof drip edge, homeowners can make informed decisions to protect their homes from water damage and ensure the longevity of their roofing systems.

Getting assistance from an experienced roofing company can ensure that your roof drip edge is installed the right way, the first time. Woodshield Roofing offers a free estimate for all roofing projects that provides the best in customer service and expertise. Contact us today to schedule a consultation and learn how we can help safeguard your home from the elements.