What are the most common building envelope failures?

Building envelope failures are a leading cause of costly repairs, water damage, and premature deterioration in commercial and institutional properties. The building envelope includes all components that separate the conditioned or occupied space from the exterior environment, such as walls, windows, roof systems, flashing, sealants, and sub-grade waterproofing.

Common failures include:

• Water intrusion due to failed waterproofing, cracked masonry, or gaps at joints. Leaks can originate from damaged walls, roofs, windows, or below-grade elements, especially in buildings exposed to wind-driven rain or coastal conditions typical in New England.
• Deteriorated sealants and expansion joints. Over time, UV exposure, temperature fluctuation, and seasonal movement cause joint materials to shrink, harden, or separate, leaving openings for moisture infiltration.
• Failed or missing flashing. Improperly installed or aging flashing at roof edges, wall transitions, windows, and doors can allow water to bypass drainage systems and cause hidden damage.
• Masonry or mortar deterioration. Prolonged moisture exposure or freeze-thaw cycling can cause mortar joints to crack or bricks to spall, accelerating structural wear and letting more water inside the wall assembly.
• Deficiencies in exterior insulation and finish systems (EIFS). Impact damage, poor installation, or lack of proper detailing can allow water to become trapped behind facades, leading to rot or loss of insulation value.
• Concrete and structural cracks. Exposure to deicing salts, freeze-thaw cycles, and chloride penetration in parking garages and plaza decks can initiate cracking that threatens both water tightness and structural safety.

In New England, repeated freeze-thaw cycles, intense moisture from snow and ice, and seasonal thermal swings put particular stress on the building envelope. Without proactive inspections and preventative maintenance, these subtle issues can escalate quickly, especially in older or historic buildings.

Early identification through professional evaluation helps property teams plan effective repairs and long-term protection strategies. Routine maintenance, proper detailing, and the use of appropriate weather-resistant materials are crucial for maintaining structural integrity, efficient operation, and asset value over time.