Construction document review guides and references.
Reference guides for construction document review, RFI management, and compliance.
CSI spec section guides
Common contradiction types, frequent RFIs, and review guidance for every major MasterFormat division.
Cast-in-Place Concrete
Contradictions between concrete mix design in the spec and structural drawings are among the most costly to resolve in the field.
Structural Steel Framing
Steel connection details frequently conflict between structural drawings and spec section 05 12 00, particularly on weld type and bolt grade.
Firestopping
Fire rating requirements between architectural drawings and spec section 07 84 00 are the single most common contradiction type Lintel surfaces across all project types.
Metal Doors and Frames
Door schedules frequently disagree with both the architectural floor plans and the hardware specification, creating cascading RFIs during rough-in.
Gypsum Board Assemblies
Partition type conflicts between architectural plans and the gypsum board spec are pervasive on commercial projects and drive high RFI volume.
Interior Painting
Finish schedules and paint spec sections routinely conflict on sheen level, product specification, and surface preparation requirements.
Plumbing
Plumbing fixture schedules, riser diagrams, and fixture spec sheets create a three-way contradiction surface that manual review routinely misses.
HVAC
Mechanical schedules conflict with spec sections on equipment capacity, duct sizing, and insulation type, often across multiple drawing sheets and spec divisions.
Electrical
Panel schedules, single-line diagrams, and electrical specifications create frequent three-way contradictions that delay rough-in and inspection.
Submittal Procedures
Submittal requirements defined in Division 01 frequently conflict with product-specific submittal lists embedded in technical spec sections.
Quality Requirements
Testing and inspection requirements in Division 01 routinely contradict material-specific testing callouts in technical divisions.
Product Requirements
Product substitution and approved-equals language in Division 01 creates contradiction risk when technical sections specify manufacturer-proprietary products.
Demolition
Demolition scope described in Division 02 specs frequently conflicts with existing conditions shown on architectural and structural drawings.
Concrete Forming and Accessories
Formwork design requirements in the spec often conflict with structural drawing notes on removal timing and loading.
Concrete Reinforcing
Rebar size, spacing, and cover requirements in the reinforcing spec routinely conflict with structural drawing details.
Unit Masonry
Masonry specs frequently conflict with structural drawings on grout fill, reinforcement, and bond beam requirements.
Metal Fastenings
Bolt grade, torque requirement, and inspection protocol specified in 05 05 23 conflicts with connection details on structural drawings more often than any other fastening issue.
Rough Carpentry
Lumber grade and blocking requirement specs conflict with architectural details on backing location and size.
Water Repellents
Waterproofing and water repellent product specs frequently conflict with substrate preparation requirements shown on architectural details.
Thermal Insulation
Insulation R-value and vapor barrier requirements in the spec routinely conflict with energy compliance notes on architectural drawings.
Modified Bituminous Roofing
Roofing membrane spec conflicts with structural drawings on deck type, slope requirements, and edge condition details.
Sheet Metal Flashing and Trim
Flashing gauge and finish specs conflict with architectural detail callouts on material and installation method.
Joint Sealants
Sealant type and joint dimension specs conflict with architectural detail dimensions and substrate conditions.
Door Hardware
Hardware schedule, hardware group spec, and door schedule create a three-way contradiction surface that routinely generates high RFI volume at rough-in.
Glazing
Glass type, U-value, and SHGC requirements in the glazing spec conflict with energy compliance documentation and architectural schedules.
Resilient Flooring
Resilient flooring specs conflict with substrate flatness and moisture emission requirements shown in structural drawings and concrete specs.
Carpeting
Carpet spec conflicts with finish schedule on pattern, color reference, and installation method at transitions.
Demountable Partitions
Demountable partition specs frequently conflict with structural drawings on ceiling attachment method and load requirements.
Fire Suppression
Sprinkler head type and coverage pattern in the fire suppression spec conflict with architectural reflected ceiling plans and hazard classification.
Plumbing Fixtures
Fixture schedule, specification section, and plumbing plans create three-way contradictions on model, rough-in dimension, and ADA compliance.
Common Work Results for HVAC
Division 23 common requirements for hangers, supports, and vibration isolation conflict with structural drawings on allowable loads and attachment methods.
HVAC Insulation
Duct and pipe insulation specs conflict with energy code requirements and fire rating requirements at duct penetrations.
Common Work Results for Electrical
Electrical common work requirements for conduit, wire, and grounding conflict with panel schedules and single-line diagrams.
Switchboards, Switchgear, and Panelboards
Panelboard specs conflict with electrical single-line diagrams on bus ampacity, interrupting rating, and branch circuit configuration.
Communications
Communications infrastructure specs conflict with architectural plans on pathway locations, backboard requirements, and equipment room sizing.
Electronic Safety and Security
Security system specs conflict with architectural plans on device locations, power requirements, and conduit routing.
Earth Moving
Earthwork specs conflict with civil drawings on compaction requirements, bearing capacity, and fill material classification.
Bases, Ballasts, and Paving
Paving section thickness and material specs conflict with civil drawings on subgrade preparation and drainage requirements.
Utilities
Site utility specs conflict with civil drawings on pipe material, burial depth, and coordination with existing utilities.
Summary of Work
Work scope defined in Division 01 Summary frequently conflicts with scope implied by individual technical sections and drawing notes.
Temporary Facilities and Controls
Temporary utility and access requirements in Division 01 conflict with phasing plans and site logistics drawings.
Architectural Woodwork
Millwork specs conflict with architectural elevations on profile, material, and finish requirements.
Curtain Wall and Glazed Assemblies
Curtain wall specs conflict with structural drawings on anchor capacity, thermal movement accommodation, and wind load design.
Toilet, Bath, and Laundry Accessories
Accessory schedule and spec section conflict with architectural plans on ADA compliance requirements and blocking locations.
Equipment
Equipment specs conflict with architectural floor plans on rough-in locations, utility connections, and clearance requirements.
Furnishings
Furnishing specs conflict with architectural plans on clearance, power access, and blocking requirements.
Integrations
Connect Lintel to the project management and document storage tools your team already uses.
Procore
Native two-way sync with Procore, import documents, push RFIs back in one click.
Autodesk Construction Cloud
Connect Lintel to ACC and BIM 360 document sets.
Bluebeam Revu
Upload Bluebeam-marked PDFs directly into Lintel for contradiction analysis.
Procore RFI Workflow
Lintel drafts RFIs. Procore manages them. Zero manual re-entry.
Dropbox
Connect your Dropbox document library directly to Lintel.
Google Drive
Import document sets from Google Drive for contradiction analysis.
Box
Enterprise document libraries in Box connected to Lintel detection.
Microsoft SharePoint
Connect SharePoint document libraries to Lintel.
Use cases by role
How Lintel reduces document risk for every stakeholder in the project delivery chain.
General Contractors
Catch contradictions before they become change orders.
Architects
Issue fewer addenda. Field fewer RFIs.
Owners and Developers
Protect your schedule and budget from document risk.
MEP Engineers
Coordinate MEP scope before the field finds the conflicts.
Subcontractors
Know what the drawings say before you submit your bid.
Construction Managers
Give your owner a document quality report before GMP.
State compliance references
Key compliance requirements and common contradiction risk areas by state.
California
California construction projects face compliance requirements under Title 24 (California Building Code), Cal/OSHA, CEQA, and local jurisdictional amendments. Document contradictions involving fire ratings, energy compliance, and accessibility are the most common compliance risk areas on California projects.
New York
New York construction projects must comply with the New York City Building Code (for NYC projects), NYS Building Code, Local Law requirements, and DOB filing requirements. Fire protection, egress, and mechanical coordination are high-risk contradiction areas.
Texas
Texas construction projects are governed by the Texas Building Code with local amendments, TAS (Texas Accessibility Standards), and TDLR review for accessible facilities. Wind load compliance and energy code documentation are primary contradiction risk areas.
Florida
Florida construction projects must comply with the Florida Building Code (FBC), which has distinct requirements for high-velocity hurricane zones in South Florida. Wind resistance, flood compliance, and product approval documentation are critical contradiction areas.
Illinois
Illinois construction projects, particularly in Chicago, face requirements under the Illinois Accessibility Code, Chicago Building Code amendments, and Chicago Department of Buildings requirements. Fire protection and structural documentation are primary risk areas.
Washington
Washington State construction projects must comply with the Washington State Building Code, which has adopted stringent energy code requirements and seismic design standards. Energy compliance and seismic documentation are the most frequent contradiction risk areas.
Georgia
Georgia construction projects must comply with the Georgia State Minimum Standard Codes and local amendments. Atlanta projects face additional requirements under the City of Atlanta amendments to the IBC and local zoning overlay requirements.
Colorado
Colorado construction projects face requirements under the Colorado Building Code, local high-altitude building requirements, and wildfire urban interface codes in mountain jurisdictions. Energy and envelope specifications are frequent contradiction areas.
Arizona
Arizona construction projects must address extreme heat climate requirements in specifications and drawings. Phoenix and Maricopa County have local amendments affecting energy code and mechanical system design.
Massachusetts
Massachusetts construction projects are governed by the Massachusetts State Building Code (780 CMR), which has significant local amendments and stringent accessibility and energy requirements. Boston projects face additional requirements under Boston's building department.
North Carolina
North Carolina construction projects must comply with the North Carolina State Building Code and NC Accessibility Code. Hurricane zone requirements along the coast and energy code documentation are primary contradiction risk areas.
Virginia
Virginia construction projects must comply with the Virginia Construction Code (VCC), which adopts the IBC with Virginia-specific amendments. Northern Virginia projects near DC face federal coordination requirements on certain project types.