Manufacturer Varies by Location 120 Degree Headwall Flashing, 4 in. x 5 in., Multiple Colors, 28 Ga Metal

This 120 degree headwall flashing protects roof-to-wall intersections where a shingle roof abuts a vertical wall. It comes in a 4 in. x 5 in. profile bent at 120 degrees, offered in mill, bronze, black, brown, gray, charcoal, white and dove gray, with some colors in 28 ga and sell units of each piece or bundle. The vertical leg tucks under building paper; the lower plane laps over underlayment and under shingles.

Key Features:

• Roof-to-wall protection: Designed to cover and protect roof-to-wall intersections from water infiltration.
• 120 degree bend: Bent at 120 degrees to fit the transition between roof plane and wall.
• Correct layering design: Shorter vertical plane attaches to the wall under the building paper; the lower plane sits on underlayment and under shingles.
• Eight color choices: Available in mill, bronze, black, brown, gray, charcoal, white and dove gray.
• 28 gauge option: Several painted colors are offered in 28 ga metal for added durability.
• Easy wall integration: Extends up behind the exterior wall covering and down over the roof-covering material.

Specifications Table:

Coverage & How Much You Need:

Each flashing piece covers one linear foot of headwall transition in its 4 in. x 5 in. profile, with pieces overlapped shingle-style along the run. Measure the total linear feet of roof-to-wall transition and add for lap between pieces.

Fit and Compatibility:

Use beneath shingle roof-covering materials with standard underlayment and building paper layers at headwall intersections. Sold as flashing only; pair with matching drip edge and step flashing where the roof detail requires.

Frequently Asked Questions (FAQ):

Q: What sizes are available?
A: The line is offered in a 4 in. x 5 in. profile bent at 120 degrees.

Q: Which colors come in 28 gauge?
A: Black, bronze, charcoal, white and dove gray variants are listed in 28 ga; mill, brown and gray are listed without a stated gauge.

Q: How is headwall flashing installed?
A: The shorter vertical leg goes up the wall behind the building paper and exterior wall covering, while the lower plane lies over the underlayment and under the shingles.

Q: How many pieces do I need?
A: Measure the linear feet of the headwall transition and add laps between pieces; pieces are sold individually or per bundle depending on color.

Q: What is included in the sell unit?
A: One piece of 4 in. x 5 in. 120 degree headwall flashing, or one bundle for colors sold per bundle.

Expert Verdict Reviewed by the SuperArbor Pro Desk

Match the flashing color to the shingle or wall trim for a clean finish at exposed headwall edges, or use mill finish where the flashing will be fully concealed. Always lapping correctly is the whole point of headwall flashing: keep the vertical leg behind the wall’s weather-resistive barrier and the horizontal leg over the underlayment so water sheds onto, not under, the roof plane. Overlap pieces several inches along the run and never nail through the exposed horizontal leg.

Cut metal flashing edges are sharp; wear cut-resistant gloves when handling and installing.

Order 120 degree headwall flashing in your color and protect every roof-to-wall intersection.