DOB Approved


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DOB Approved Services

Outsource Special Inspections, Inc. is a registered class 2 special inspections agency that can perform over 50 types of special inspections (TR1) and progress inspections (TR8).

In addition to the services we offer, Outsource will solicit bids for any special inspections not listed below to DOB approved companies on the client’s behalf and provide a cost analysis to help the client select a qualified bidder. Outsource will then administer and coordinate the services of the company selected by the client.


Special Inspections (TR1)

  • Flood Zone Compliance
  • Luminous Egress Path Markings
  • Emergency & Standby Power Systems (Generators)
  • Structural Steel – Welding
  • Structural Steel – High Strength Bolting
  • Structural Cold – Formed Steel
  • Concrete – Cast-in-Place
  • Masonry
  • Wood – Installation of High Load Diaphragms
  • Wood – Installation of Metal-Plate-Connected Trusses
  • Wood- Installation of Prefabricated I-Joists
  • Wall Panels, Curtain Walls, and Veneers
  • Sprayed Fire-Resistant Materials
  • Exterior Insulation and Finish Systems (EIFS)
  • Smoke Control Systems
  • Mechanical Systems
  • Fuel-Oil Storage and Fuel-Oil Piping Systems
  • High Pressure Steam Piping (Welding)
  • Fuel-Gas Piping (Welding)
  • Structural Stability – Existing Buildings
  • Mechanical Demolition
  • On-Site Storm Water Drain Disp./Detent Install (Drywell)
  • Individual On-Site Private Sewage Disp Install (Septic)
  • Sprinkler Systems
  • Standpipe Systems
  • Heating Systems
  • Chimneys
  • Fire-Resistant Penetrations and Joints (Firestop)
  • Aluminum Welding
  • Seismic Isolation Systems
  • Structural Steel - Details
  • Mastic And Intumescent Fire-Resistant Coatings
  • High Temperature Hot Water Piping (Welding)
  • Post-Installed Anchors

Progress Inspection Items (TR1)

  • Preliminary
  • Footing and Foundation
  • Lowest Floor Elevation
  • Frame Inspection
  • Energy Code Compliance Inspections
  • Fire-Resistance Rated Construction
  • Public Assembly Emergency Lighting
  • Final

Energy Code Progress Inspections (TR8)

  • Protection of Foundation Insulation
  • Insulation Placement and R Values
  • Fenestration Thermal Values and Ratings
  • Fenestration Ratings for Air Leakage
  • Fenestration Areas
  • Air Sealing and Insulation – Visual
  • Air Sealing and Insulation – Testing
  • Projection Factors
  • Loading Deck Weather Seals
  • Vestibules
  • Fireplaces
  • Dampers Integral to Building Envelope
  • HVAC & Service Water Heating Equipment
  • HVAC and Service Water Heating System Controls
  • Duct Plenum and Piping Insulation and Sealing
  • Duct Leakage Testing
  • Electrical Metering
  • Lighting in Dwelling Units
  • Interior Lighting Power
  • Exterior Lighting Power
  • Lighting Controls
  • Exit Signs
  • Tandem Wiring
  • Electrical Motors
  • Maintenance Information
  • Permanent Certificate



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