Burgess & Niple partnered with Virginia State University to address moisture, water intrusion, and humidity issues in the basements and crawl spaces of nine campus buildings. The initial phase of the project involved visual inspections of moisture-related problems, documentation of specific causes and observable damage, and proposal of remediation options to review with the University, including the review of existing building documentation and detailed site investigations. Key issues identified included missing waterproofing counterflashing, improperly terminated existing waterproofing, incomplete vapor barrier systems in crawlspaces, and inadequate site grading that directed water toward building walls.
Protecting Campus Assets
As part of the comprehensive design approach, walls will be excavated to apply below-grade membranes and drainage tile will be installed near footings, with window wells receiving similar treatment. Porch waterproofing will require removing masonry to apply membranes to exposed slabs and install drip edges. In crawlspaces, vapor barriers will be replaced, and damaged or missing insulation will be replaced with new vinyl-faced insulation in high-moisture areas to help ensure proper thermal segregation and prevent condensation within the crawl space. Additionally, new mechanical ventilation will be designed in one building to better manage moisture.
Site work improvements include new stormwater inlets, regrading for better drainage, and installing perimeter drains connected to existing infrastructure. Additionally, the design will address structural issues, such as repairing spalled concrete encasement of steel floor beams in crawl spaces and moisture-related structural damage at elevated porches.
Lasting Durability
This comprehensive waterproofing project will significantly benefit Virginia State University by addressing long-standing moisture intrusion issues in multiple campus buildings. The improvements will help protect the buildings' structural integrity, improve indoor air quality for the occupants, and reduce maintenance costs associated with water damage.