Installing drip edge during a new roof installation is important for several reasons, and while it may not be required by building codes or manufacturers like GAF in some areas, it plays a crucial role in protecting the roof and the home. Both GAF and The Shingle Master (TSM) recommend drip edge installation, and it is required to qualify for TSM’s Master Elite Warranty.
Purpose of Drip Edge:
Drip edge is a metal flashing that is installed at the edges of a roof to direct water away from the fascia and underlying roofing components. It extends slightly beyond the edge of the roof, creating a pathway for water to flow off the roof and into the gutters.
Key Benefits of Drip Edge Installation:
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- Prevents Water Damage: Drip edge helps protect the roof’s deck and fascia from water damage. Without it, water can flow back under the shingles or roofing materials, seeping into the roof deck, causing rot, mold, and structural damage over time.
- Enhances Roof Durability: By directing water away from the edges, drip edge prevents premature deterioration of the roof’s edges. This adds to the overall lifespan of the roof, which is especially important for warranties like TSM’s Master Elite Warranty.
- Prevents Wind-Driven Rain: In high-wind conditions, rain can be driven under the roofing materials along the roof’s edge. Drip edge provides a barrier to minimize this, ensuring that moisture doesn’t penetrate vulnerable areas of the roof.
- Supports Proper Water Flow: Drip edge helps to channel water directly into the gutters. Without drip edge, water can drip down the fascia or even behind the gutters, which could lead to erosion near the foundation or fascia board damage.
- Prevents Pest Intrusion: Drip edge closes off gaps between the roof deck and the fascia, making it harder for pests, insects, and small animals to find entry points into the attic or walls.
- Improves Aesthetic Appeal: Drip edge provides a clean, finished look to the roof’s edge. It enhances curb appeal and gives the roofline a more polished, professional appearance.
- Prevents Water Damage: Drip edge helps protect the roof’s deck and fascia from water damage. Without it, water can flow back under the shingles or roofing materials, seeping into the roof deck, causing rot, mold, and structural damage over time.
Protecting the Home:
The role of drip edge is crucial in protecting the home’s structural integrity. It acts as a first line of defense against the elements—diverting water away from vulnerable areas, preventing wood rot, mold growth, and even foundational issues due to water pooling near the home. By ensuring that the roof’s edges are shielded from water penetration, the drip edge helps maintain the health of the roof and overall home structure.
In Summary:
Though not always required by building codes, drip edge installation is highly recommended by roofing experts like GAF and TSM for its vital role in protecting the roof and home. It ensures proper water runoff, reduces the risk of water damage, supports the longevity of the roof, and is essential for maintaining warranty protections like the Master Care Warranty.
