Knowledgeable selection of compatible building materials, quality waterproofing materials and systems that will withstand the conditions (e.g. hydrostatic) of the area where a building is located is vital to a quality waterproofing assembly design. Properly prepared specifications with accurate drawings and details are essential.
— NRCA Waterproofing Manual.

Subterranean waterproofing projects often present challenges of material selection, access, shoring, excavation, drainage, backfill, subsurface utility coordination and site design.  Bell & Spina understands the interrelationships between these factors and develops solutions that reduce the risk of conflict.  Through exploratory excavations, we study existing waterproofing systems to inform the design of their prospective replacements.  Our experience addressing failed systems provides valuable insight when designing waterproofing for both existing and new subterranean structures.  Advances in Electronic Field Vector Mapping (EFVM) continue to prove instrumental in validating the water-tightness of installed systems.    

- Neil W Garry, PE, RRC, REWC, BECxP, CxA+BE