A remedy for aging infrastructure:

Re-roofing and historic preservation for building envelopes

Why aging buildings require a strategic approach

Nearly half of all U.S. commercial buildings were constructed before 1980, and many are now reaching a point where major systems require replacement or restoration.

As these systems age, roof assemblies, masonry façades, and waterproofing systems that have performed for decades begin to show signs of fatigue, deterioration, and water intrusion.

For facility teams, the challenge is not just identifying these issues. It is determining how to address them in a way that balances performance, cost, and, in many cases, historic integrity.

Re-roofing and restoration projects are no longer isolated scopes. They require a coordinated approach to the entire building envelope to ensure long-term performance.

What happens when building systems age

Over time, building materials are exposed to repeated freeze-thaw cycles, UV degradation, and moisture infiltration. These conditions gradually weaken roofing membranes, flashing details, sealants, and masonry joints.

What may begin as minor issues, such as small leaks or open joints, can escalate into more significant problems if left unaddressed. Moisture entering the building envelope can travel beyond the point of entry, leading to concealed damage within wall assemblies or structural components.

In historic buildings, these challenges are often compounded by older materials that were not designed to accommodate movement or modern performance demands.

The risk of treating symptoms instead of systems

One of the most common issues in aging buildings is repeated repairs that address visible symptoms but not the underlying cause.

A roof leak may be patched, but if flashing transitions or adjacent masonry conditions are contributing to the problem, the issue will return. Similarly, repointing masonry without addressing water infiltration from above can accelerate deterioration.

Without a system-level evaluation, these repairs become cyclical, increasing costs over time without improving long-term performance.

Re-roofing as an opportunity to improve performance

Re-roofing projects provide an opportunity to do more than replace an aging system. They allow facility teams to evaluate and upgrade critical details that impact the entire building envelope.

This includes:
• Replacing or upgrading flashing and edge conditions
• Addressing drainage and slope deficiencies
• Coordinating roof-to-wall transitions with masonry systems
• Improving insulation and overall system performance

On projects like the Big E Coliseum, in Springfield, MA, originally constructed in 1916, re-roofing work required balancing modern performance needs with the building’s existing structure, including upgrading the EPDM system while preserving key architectural elements.

Similarly, work at New Britain Museum of American Art in New Britain, CT and Harris Public Library in Woonsocket, RI, reflect how re-roofing projects often serve as a critical intervention point for extending the life of aging institutional buildings.

Preserving historic character while upgrading performance

For historic and institutional buildings, preservation adds another layer of complexity. Maintaining the architectural character of a structure must be balanced with modern performance requirements.

Projects like Marble House in Newport, RI required architectural metal work, re-roofing, and restoration that respected the building’s historic appearance while upgrading performance.

At Fairhaven High School in Fairhaven, MA Greenwood Industries and TWC Phoenix collaborated on a large-scale restoration that included slate roofing, copper systems, waterproofing, and masonry repairs.

Work on the Cathedral of Saints Peter and Paul in Providence, RI further demonstrates the level of coordination required on historic structures, where roofing, masonry restoration, and waterproofing must all align to protect complex architectural features.

These projects highlight a key reality: historic restoration is not just about preserving appearance. It requires integrating modern materials and systems in a way that supports long-term durability without compromising the building’s character.

What to evaluate before starting a project

If your building is showing signs of aging, consider the following:

• Are leaks or water-related issues recurring in the same areas?
• Are roofing systems approaching or exceeding their expected lifespan?
• Is masonry showing signs of cracking, open joints, or deterioration?
• Are repairs addressing the root cause, or only the visible symptoms?
• Have roof, masonry, and waterproofing systems been evaluated together?

These conditions may indicate the need for a more comprehensive approach rather than isolated repairs.

Planning for long-term building performance

Addressing aging infrastructure requires more than reactive maintenance. It requires planning, coordination, and an understanding of how systems interact across the building envelope.

Greenwood Industries approaches these projects with integrated teams of roofers, masons, and metal fabricators working together to restore historic structures while meeting modern performance demands.

By evaluating roofing, masonry, and waterproofing together, facility teams can prioritize improvements, align scopes of work, and reduce long-term costs associated with repeated repairs.

A well-planned re-roofing and restoration project not only extends the life of the building, but also improves performance and protects structural components.

Spring is a critical window for evaluating aging buildings after winter conditions have taken their toll. Freeze-thaw cycles, snow load, and prolonged moisture exposure often reveal vulnerabilities across roofing, masonry, and waterproofing systems.

April is the time to assess these conditions, plan ahead, and prioritize projects before minor issues develop into larger repairs during the active construction season.

If your facility is showing signs of aging, now is the time to take a closer look.

Preserving aging buildings through strategic restoration

Across the Northeast, aging buildings are not going away, the way they are maintained is evolving.

Re-roofing and historic restoration are no longer just repair strategies. They are opportunities to improve performance, extend service life, and preserve the structures that define our campuses and communities.

With the right approach, these projects can move beyond short-term fixes and deliver lasting value for both the building and the people who rely on it.

Need help planning a re-roofing or restoration project? Our team can evaluate your building and recommend the right path forward. Contact us today.