Jason A. Aspin

Associate Principal


Jason Aspin’s work focuses on the investigation, design development, and construction observation of roofing, waterproofing, and concrete repair projects. He has experience with several roofing systems, including built-up, modified bitumen, and single-ply membrane systems, as well as shingle, tile, and sheet metal. Mr. Aspin also has experience with plaza and below-grade waterproofing systems.

Mr. Aspin has participated in projects involving the investigation and repair of historic concrete structures, including high-rises, monuments, and plazas. He has also prepared construction documents for the restoration of historic landmarks and steel trusses.



Roofing and Waterproofing

  • Blackstone Hotel - Chicago, IL: Sheet metal roofing replacement and vaulted sidewalk repairs
  • Joliet Junior College - Joliet, IL: Comprehensive roofing condition survey of buildings on the entire campus
  • Lake Point Tower - Chicago, IL: Roofing replacement, concrete structural slab repairs, and plaza expansion joint repairs
  • NASA Vehicle Assembly Building - Cape Canaveral, FL: Roofing condition survey
  • Nebraska State Capitol - Lincoln: Sheet metal roofing investigation and replacement
  • O'Hare International Airport - Chicago, IL: Waterproofing and expansion joint failure investigation
  • Ritchie Court Condominiums - Chicago, IL: Pool deck renovations
  • Saint Cecilia Cathedral - Omaha, NE: Clay tile roofing restoration
  • San Jacinto Museum of History - La Porte, TX: Historic roofing replacement and sheet- metal flashing repairs
  • Yale Center for British Art - New Haven, CT: Roofing investigation and replacement and skylight repair


Concrete Repair

  • Sixty-Third Street Beach House - Chicago, IL: Restoration of historic concrete structure
  • Promontory Apartments - Chicago, IL: Restoration of historic concrete high-rise tower


Plazas and Terraces

  • Carl Sandburg Village - Chicago, IL: Plaza renovation
  • Marshall Field’s (now Macy’s) - Schaumburg, IL: Plaza renovation
Professional Affiliations

ASTM International


Architect in IL


University of Illinois at Urbana-Champaign
Bachelor of Architecture, 1994
Master of Architecture, 1996