Close-up of a house roof with three brick chimneys against a clear blue sky and green foliage in foreground

Case Study: Historic Slate and Copper Roof Addition in Gloucester, Massachusetts

Project Overview

Master Roofers was honored to work on a beautiful heritage estate in Gloucester, Massachusetts. This historic property includes a main residence, a guest house, and what was once a carriage house, now converted into a garage. The home was originally constructed with slate and copper roofing, and the owners had been Master Roofers customers for years, relying on our specialized expertise to maintain this unique system.

The Customer's Challenge

The homeowner, planning a large addition to the main house in the form of a sunroom, faced two main challenges. First, the new roof had to physically tie into the original slate and copper roofing structure. Second, it needed to aesthetically match the original materials to preserve the historic look of the home.

Given the age of the property and the materials involved, finding matching slate and copper elements was no simple task. The homeowners also had high expectations, wanting the addition to look as though it had always been part of the house.

Project Planning and Strategy

Master Roofers had the advantage of already being familiar with the home, having completed multiple maintenance projects there over the years. Our team collaborated directly with the homeowner and their general contractor, carefully planning timelines and construction phases to ensure the new roofing system would blend perfectly with the existing one.

One of the key elements of this project was sourcing historically accurate slate. The original roof featured a dark gray slate common to homes from the early 1900s. Rather than use new slate, which would look too crisp and modern, we sourced salvaged slate from the same era. This material had naturally aged edges and a soft patina that made it nearly indistinguishable from the existing roof. We created sample boards to present options, and the homeowner was thrilled with the match.

On the copper side, we used an acid-based patina treatment to ensure that new copper flashing and trim would match the weathered look of the original elements. This eliminated the need to wait years for the bright copper to dull and age naturally.

Installation and Execution

Since this was a new construction addition, we encountered few surprises during installation. Most of our work centered on scheduling and coordinating with other trades. The framing needed to be completed before our roofing phase could begin, and close communication was essential to keep the project on track.

Because of the trust we had already established with the homeowner, they were confident in our craftsmanship and attention to detail. Our priority was delivering a seamless integration between old and new, both functionally and visually.

Final Result

The homeowner was absolutely delighted with the final result. She remarked that the new sunroom and roof looked as if they had been part of the house from the very beginning. That feedback was the highest compliment we could receive.

Thanks to period-matched slate, custom patina work, and thoughtful coordination, the new roof blends flawlessly into this historic estate. The project reflects our deep commitment to preserving architectural character while delivering modern performance and longevity.

Conclusion

This Gloucester project showcases Master Roofers' rare capability to work with legacy materials like slate and copper while meeting the high expectations of preservation-minded homeowners. With expert craftsmanship and a tailored approach, we helped ensure this estate continues to stand strong and beautiful for generations to come.

To learn more about Master Roofers, visit masterroofers.com or call (603) 623 4973.