Special Inspection ServicesDownload a PDF info sheetSpecial Inspection Services

Case Studies

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Clarkson University – Student Center

Location: Potsdam, New York

Summary: 55,000 s.f. student center that included a multimedia wall, fireplace lounges, central dining, a café, pub, game rooms, multipurpose room, space for the student clubs, and radio and television broadcast studios.

Services Provided:

  • Special inspection of concrete, masonry, soils, steel, and glue laminated wood, and fireproofing
  • Portland cement concrete batch plant inspection
  • Bearing capacity
  • Subsurface investigation
  • Geotechnical inspection and evaluation
  • Floor flatness
  • Moisture vapor emission rate testing

Special Inspection is the monitoring of the materials and workmanship that are critical to the integrity of a building structure.

The International Building Code (IBC) established special inspection protocol and requires Structural Tests and Special Inspections for materials, installation, fabrication, erection and/or placement of components and connections. These special inspection processes require specific expertise to determine compliance with approved construction documents and referenced standards (see IBC Sections 1702 and 1704).

With nearly a half-century of experience in Construction Material Engineering and Testing, Geotechnical Engineering, and Nondestructive Testing services, ATL has become a frontrunner in the field of Special Inspection services. ATL maintains a well-qualified staff with the required certification and experience to meet the requirements outlined in the IBC special inspection protocol.

As an established and independent firm, recognized through national accreditation and validation as an agency regularly engaged in conducting tests and inspections, ATL is acknowledged as an approved agency to provide Special Inspections under IBC criteria.

The following are categories of Special Inspection services that we can provide in support of your next project:



  • Type of controlled fill material used
  • Lift thickness of controlled fill material


  • Reinforcing steel and placement
  • Formwork dimensions and general location
  • Use of required design mix
  • Placement of concrete
  • Maintenance of curing temperatures and techniques
  • Erection of precast concrete members


  • Proportions of site-prepared mortar and grout
  • Construction of mortar joints and placement of masonry units
  • Location and placement of reinforcement, connectors, prestressing tendons, and anchorages
  • Size and location of structural elements
  • Type, size, and location of anchors, and other details for anchorage of masonry
  • Specified size, grade, and type of reinforcement
  • Protection of masonry during cold weather or hot weather
  • Grout placement

Fireproofing, Mastic, and Intumescent Fire-Resistive Coatings

  • Observe surfaces to receive coatings
  • Observe ambient temperature

Structural Steel

  • Review material certifications, Welder Performance Qualification Records (WPQR), Welding Procedure Specifications (WPS), and Procedure Qualification Records (PQR)
  • Compare filler metals and welded joints used
  • Tightness of high strength bolted connections
  • Welding of structural steel, including single-pass and multiple-pass groove and fillet welds, and deck welds
  • Welding of reinforcing steel
  • Steel frame joint details


  • Review fabricator certification
  • Review fabricator quality control procedures
  • Material grading verification
  • Review field connections
  • Review field framing and details

Exterior Insulation Finish Systems (EIFS)

  • Material verification of components
  • Type, size, and location of anchors
  • Installation procedures are performed in accordance with the manufacturer's specifications
  • Pull-out tests on drilled-in anchors

Structural Insulated Panel System (SIPS)

  • Fabrication and quality control procedures for material, bonding, and tolerances
  • Compare panels to the manufacturer’s certificates
  • Panel thickness as indicated on the shop drawings
  • Observe installation of members and connections

Geotechnical Engineer

  • Foundation preparation in accordance with the approved Geotechnical Report and documents
  • Installation and testing of pile foundations
  • Installation and testing of pier foundations