Missing Underlayment Found and Corrected on Tear-Off — Hudson, NH

Project Overview

Compass Exteriors recently completed a full roof replacement in Hudson, NH using a GAF roof system with Timberline HDZ architectural shingles. While the existing roof showed signs of age from the outside, the bigger issues were uncovered once our crew stripped the old shingles and inspected the roof deck. During the tear-off, we found that the previous roof had been installed without proper roofing underlayment.

That missing layer left the decking more exposed to moisture over time, and several areas had become damaged enough to require replacement. Before installing the new asphalt shingle roof, our team removed the compromised decking and installed new material to create a solid, reliable foundation. We also found that the eaves did not have true ice and water shield protection. Instead, the existing roof had only about two feet of tar paper in one of the most vulnerable areas of the home. In New Hampshire, where roofs deal with snow, ice dams, wind-driven rain, and freeze-thaw cycles, that level of protection is not enough. Compass Exteriors removed the old tar paper and installed six feet of high-quality Grace Ice & Water Shield along the eaves for better leak prevention and long-term weather protection. Once the deck repairs and underlayment upgrades were complete, our crew installed GAF Timberline HDZ shingles to give the home a clean, durable, and properly built roofing system. For homeowners looking for roof replacement in Hudson, NH, this project is a strong example of why installation details matter. A quality roofing contractor should inspect what is beneath the shingles, correct hidden moisture damage, and use the right protective materials before finishing the roof. Compass Exteriors takes that approach on every roof replacement project across Hudson and Southern New Hampshire.

Discovering skipped underlayment during tear-off is exactly the kind of issue our roofing and siding projects in Hudson are built to catch before a new shingle layer goes down over it.