Storm & Flood Damage in Printer's Row

Risk Factors

• Historic Building Construction and Weather Exposure: Printer's Row's late-1800s and early-1900s masonry and loft buildings were designed with different climate expectations and building codes than modern standards. Brick facades, while durable, develop hairline cracks over decades that allow wind-driven rain to penetrate walls. Many buildings feature large industrial-era windows and skylights that, though charming, require constant maintenance to prevent leaks during heavy storms.
• Aging Roof Systems Vulnerable to Wind and Hail: The neighborhood's older roofing materials—whether original built-up tar, mid-century replacements, or aging asphalt shingles—lack the impact resistance of modern options. Chicago's spring and summer storms frequently produce hail that damages exposed roof surfaces, flashing, and gutters. Ice damming is a particular winter hazard on sloped roofs with inadequate ventilation.
• Local Municipal Sewer Capacity During Intense Storms: Printer's Row connects to Chicago's combined sewer system operated locally, not the Metropolitan Water Reclamation District. During heavy rainstorms, the system can reach capacity quickly, particularly in low-lying portions of the neighborhood. When sewers back up, basements and lower floors become vulnerable to contaminated water intrusion.
• Wind-Driven Rain and Water Intrusion Through Older Structures: The neighborhood's narrow streets and tall buildings create wind tunnel effects that accelerate rain-driven water toward building facades. Older mortar joints, compromised caulking around windows, and gaps in exterior siding allow water to penetrate where modern weather sealing would prevent it. During nor'easters and severe thunderstorms, wind speeds can force water horizontally into openings at multiple levels.
• Urban Heat Island Effects Increasing Severe Weather Intensity: Chicago's downtown, including Printer's Row, experiences urban heat island conditions that can intensify local atmospheric instability. This effect occasionally amplifies severe thunderstorm development and rainfall intensity immediately over downtown areas. The dense development and minimal vegetation in the Loop contribute to this phenomenon.

Warning Signs of Storm Damage

• Water Stains on Ceilings and Walls Following Heavy Rain: Fresh water stains or discoloration appearing after storms indicate active leaks. In Printer's Row's older buildings, these often appear on interior walls and ceilings after wind-driven rain events. Yellow, brown, or dark streaking suggests water has been traveling through walls or along structural members.
• Visible Damage to Roof Shingles, Flashing, or Gutters: After hail storms or high-wind events, walk the perimeter and look for missing or dented shingles, bent or separated flashing, dented gutters, or debris scattered on the ground. Damage to these components accelerates interior water intrusion during subsequent storms.
• Basement or Lower-Level Moisture After Storms: Unexpected moisture, odor, or pooling in basement areas following heavy rain suggests either groundwater intrusion or sewer backup. In Printer's Row, where many buildings have basements, this is a critical warning sign of overwhelmed local sewers or failed exterior waterproofing.
• Foundation Cracks or Efflorescence on Exterior Walls: New or widening cracks in foundation or exterior brick, combined with white mineral efflorescence (salt deposits), indicate water movement through the structure. These develop faster in older masonry after storm damage occurs.
• Sagging or Soft Spots in Roof or Attic Areas: Soft, bouncy, or visibly sagging roofing or attic framing suggests accumulated water damage. In loft buildings with flat roofs, pooling water after storms can stress structural members—this requires immediate attention.

What Storm & Flood Damage Restoration Involves

Professional storm damage restoration is a structured craft governed by the IICRC S500 (Water Damage) and S700 (Structure Drying) standards. Technicians begin with moisture mapping—using moisture meters to measure water content in drywall, wood, insulation, and structural members, establishing a baseline and identifying hidden pockets of saturation. Thermal imaging cameras detect temperature differentials that reveal moisture movement and concentrated wetness behind walls and ceilings.

Water extraction uses high-volume air movers (fans with controlled airflow patterns) and LGR (Low-Grain-Refrigerant) dehumidifiers that pull moisture from air and materials simultaneously. Unlike standard air conditioning, LGR equipment continues functioning in cold or humid conditions, critical during Chicago's unpredictable spring and winter storms. Technicians position equipment to create air circulation patterns that prevent stagnation and promote evaporation from surfaces and subsurface cavities.

In Printer's Row's historic spaces, restoration respects original materials—plaster ornament, hardwood floors, antique windows—by addressing moisture carefully and avoiding overcorrection that damages finishes. The process is ongoing monitoring: daily moisture readings, humidity tracking, and drying timeline adjustments. IICRC standards specify maximum drying time windows; most storm damage dries within 7 to 14 days with proper equipment and technique, though historic structures with deep cavities may require longer. Skipped steps—insufficient dehumidification, inadequate air circulation, premature equipment removal—lead to mold and structural decay.

The Storm & Flood Damage Remediation Process

1. Emergency Assessment and Safety: Technicians arrive to secure the building, shut off electrical power in wet areas, and assess water entry points and saturation. They identify standing water depth, sewer involvement (via odor and contamination), and structural concerns. For multi-unit buildings in Printer's Row, they establish containment barriers to prevent cross-contamination to unaffected units, then photograph and document all visible damage to establish a baseline record for restoration tracking.
2. Standing Water Removal and Extraction: Portable pumps and truck-mounted extraction units remove bulk water from basements, ground floors, and affected rooms. The goal is rapid removal (within hours) to minimize deeper soaking and bacterial growth. In Printer's Row, technicians pay attention to sub-floor cavities and crawl spaces common in older lofts, using submersible pumps and water detection equipment to ensure complete extraction.
3. Moisture Mapping and Baseline Documentation: Using moisture meters, technicians test walls, ceilings, framing, and sub-surface materials to establish saturation levels and create a drying target. Thermal imaging identifies moisture pockets behind intact surfaces. Readings are recorded and repeated daily to verify progress and guide equipment placement. This data-driven approach prevents under-drying and catches accelerating problems early.
4. Air Movement and Dehumidification Setup: High-volume air movers are positioned to create circular air patterns across floors and walls, lifting moisture from surfaces into the air. LGR dehumidifiers are placed in central locations to capture that moisture. In Printer's Row's interior spaces and narrow rooms, technicians angle equipment to avoid stagnant zones and ensure every cavity receives circulation. Doors are opened or removed (after documentation) to allow airflow between rooms.
5. Climate Control and Humidity Regulation: Relative humidity is continuously monitored and kept below 50% to inhibit mold growth. If outdoor humidity is low, windows and exterior doors are opened to introduce dry air; if outdoor air is humid, the space is sealed and dehumidifiers work harder. In Chicago's variable spring weather, technicians adjust strategy hourly based on conditions.
6. Daily Monitoring and Drying Progression: Each morning, technicians return to re-check moisture levels in all affected materials, adjust equipment based on new readings, and verify humidity is dropping. They photograph progress, update the drying timeline, and identify any areas failing to dry at expected rates—which might indicate hidden saturation or ventilation problems requiring intervention.
7. Final Inspection and Equipment Removal: Once moisture levels drop to acceptable standards (typically 15% to 20% in wood and drywall, matching unaffected areas), air movers and dehumidifiers are removed. A final walkthrough verifies no secondary damage (staining, odor, mold) and that the building envelope is stable. Comprehensive documentation is compiled detailing all measurements, timeline, and completion status for the property record.