Home »
Architecturally Exposed Structural Steel (AESS) Training for Galvanizers »
Appendix: Example Agenda for Pre-Galvanizing Meeting
Appendix: Example Agenda for Pre-Galvanizing Meeting
- AESS Category Characteristics & Cost Matrix
- Review modified AESS matrix for HDG and AGA publication Hot-Dip Galvanized Architecturally Exposed Structural Steel: Specifiers Guide
- Supply of project drawings containing information on weight and surface area
- What modified AESS category applies to which pieces/assemblies
- Define custom characteristics for HDG for each AESS category
- Identify critical or significant surfaces
- Review AISC/CISC cost matrix for AESS
- Rank category characteristics in order of importance regarding cost
- Identify any critical parts or surfaces where budget should be focused
- Identification & Marking of Parts
- Identify acceptable types of markings
- How to mark AESS category and characteristics required for each part
- How to mark critical or significant surfaces
- Steel Chemistry
- Identify all steel grades used and for what parts
- Supply of Material Test Reports (MTRs) for all heats of steel
- Identify assemblies where mixed appearance may occur
- Identify steels where excessive coating thickness and/or brittle coatings may occur
- Design & Fabrication
- Evaluate susceptibility for warpage/distortion (ASTM A384)
- Evaluate susceptibility for embrittlement (ASTM A143)
- Confirm the use of design and fabrication best practices (ASTM A385 and AGA Publication Design of Products to be HDG After Fabrication)
- Identify vent/drain holes where size or location can be optimized for aesthetics
- Acceptable appearance of vent/drain holes before HDG (drilled and/or smoothed)
- Evaluate susceptibility for weeping welds or rust bleeding; identify mitigation strategy
- Identify all welding rod types used and for what assemblies
- Supply of Material Test Reports (MTRs) for all welding wire/rods used
- Use of anti-spatter sprays and acceptable materials
- Acceptable appearance of welds before galvanizing
- Use of masking materials
- Evaluate oversized parts and acceptability of progressive dipping
- Define a procedure for communicating and resolving inadequate design details or insufficient preparation of welds, vent/drain holes, etc. after delivery to the galvanizer
- HDG Processing
- Define a procedure to communicate and remedy cosmetic damages due to transportation or handling before HDG
- Evaluate available lift points for HDG and any potential impact on aesthetics
- Use of post-treatments
- Finishing & Surface Smoothing
- Acceptable appearance after smoothing for handling marks, roughness, runs, spikes, dross inclusions, galvanizing skimmings, or other surface conditions
- Acceptable appearance of HSS seams
- Acceptable appearance of mill markings
- Plugging of holes, plug material, and acceptable appearance of plugged holes
- Acceptable appearance of welds; agree on a procedure for smoothing raised welds
- Acceptable appearance of welds, seams, mill markings, or other raised areas where grinding prior to HDG was not performed; agree on a procedure should this issue arise
- Acceptable appearance of thermally cut edges on thick steels; agree on a procedure should this issue arise
- Acceptable appearance of progressive dip line
- Duplex Systems
- Define acceptance criteria and assign responsibilities for surface smoothing. See ASTM A123 6.2, A123 6.4, and D6386 5.2 (for painting) or D7803 5.1.1 (for powder coating)
- If using zinc-rich paint for touch-up and repair at the galvanizing plant, evaluate re-coat window of the paint and mutually agree whether repair material should be applied by the galvanizer or painter
- Define use of compatible filler materials to fill small indentations in the galvanizing
- Handling, Storage & Wet Storage Stain (WSS)
- Define acceptable handling methods after HDG
- Define packaging or dunnage requirements
- Define realistic expectations for preventing and removing WSS at the HDG plant
- Responsibility for preventing WSS during trucking
- Define storage and WSS removal procedures at the job site
- Inspection
- Define customer hold-points during QA/QC
- Reporting
- Touch-Up & Repair At The Galvanizing Plant
- Repair material selection and practical limitations of the chosen material
- Use of cosmetic touch-up
- Cosmetic touch-up material selection and color matching
- Touch-Up & Repair At The Jobsite
- Repair material selection and practical limitations of the chosen material
- Define responsibility and a procedure for field repairs due to transportation, handling damage (flaking), or other erection activities
- Define responsibility and a procedure for remedying weeping welds and rust bleeding