Commercial Concrete Tile Roof Leak Repair With Underlayment Replacement in Cottonwood, AZ

A commercial property in Cottonwood, Arizona needed roofing repairs after a leak was traced to deteriorated tile underlayment. Hale’s Roofing focused the repair on the affected roof area while also addressing vulnerable vents, flashings, drains, and other tile-roof components to improve water resistance and help protect the property from future leaks.

The project covered approximately 4 squares of targeted repair area and included tile removal, damaged underlayment replacement with premium self-adhered ice and water shield, new wood battens, flashing repairs, and comprehensive tile-roof maintenance across vents, drains, mortar, and hip and ridge components.

Project Details

• Property type: Commercial
• Roof type: Concrete tile roofing
• Repair area: Approximately 4 squares
• Primary issue: Deteriorated underlayment causing a roof leak
• Underlayment: Premium high-temperature self-adhered ice and water shield
• Additional work: Tile, flashing, battens, vents, drains, mortar, and underlayment maintenance
• Insurer: None
• Lender: None
• Location: Cottonwood, AZ
• Labor warranty: 2-year workmanship warranty on the repair area

Problem: Locating and Repairing the Source of the Leak

The primary challenge was deterioration of the roof underlayment beneath the tile. Because the underlayment is the critical water-shedding layer in a tile roof system, the damaged material needed to be removed and replaced while preserving the surrounding tile roof.

The repair also required careful attention to the transition between existing and new underlayment. During removal, the roofing team needed to identify a reliable stopping point where the new material could properly tie into the existing roof system without compromising the surrounding area.

Solution: Targeted Tile Underlayment Repair and Roof Maintenance

Our team removed the tile in the affected leak area, exposed the deteriorated underlayment, and removed the damaged material. A new layer of premium high-temperature self-adhered ice and water shield was installed, followed by new 1×2-inch wood battens and repairs or replacement of flashing where needed. The existing tile was then reinstalled and broken tiles replaced as necessary.

As part of the broader tile-roof maintenance, the crew resealed vents, flashings, and drains, addressed battens, broken tile, mortar, and underlayment where needed, and waterproofed roof vents and openings. The repair incorporated premium self-adhered underlayment, cedar wood battens, sealant, flashing cement, fiberglass webbing, lead pipe jacks, concrete tile, and hip and ridge closure components. The project finished with a thorough ground cleanup and removal of all job debris.

Result: A More Secure and Water-Resistant Roof

The completed repair addressed the deteriorated underlayment in the identified leak area while strengthening surrounding roof details that can contribute to water intrusion. The targeted approach allowed the existing tile roof to be maintained rather than replacing the entire roofing system, and the property owner received a focused repair designed to improve water resistance, protect the structure from continued moisture intrusion, and restore confidence in the affected portion of the commercial roof.

The repair area is backed by a 2-year workmanship warranty, with the existing roofing outside the repair area subject to its original coverage and all materials subject to the applicable manufacturer’s product warranties. By addressing the leak at the underlying roofing-system level rather than simply treating the visible symptom, the work provided a targeted, lasting solution for this Cottonwood commercial property.