Print Reading, Tags & Layout

180 records, red lane first.

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Damper Closeout Checklist
Field problem · 4th Year
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Damper Closeout Checklist
Foreman script · 3rd Year
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Dissimilar Metals Touch at an Exterior Duct Support
Foreman script · 3rd Year
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Exterior Duct Expansion Joint Is Installed at the Wrong Location
Foreman script · 3rd Year
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Fire/smoke damper symbols not recognized
Field problem · 4th Year
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How do I handle and install exposed double-wall spiral duct without scratching it?
Apprentice question · 3rd Year
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How do I identify a fire-rated wall on the architectural drawings?
Apprentice question · 2nd Year
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How do I install a cleanout access door in a welded grease duct?
Apprentice question · 3rd Year
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How do I layout a welded grease duct slope so grease drains toward the hood?
Apprentice question · 3rd Year
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How do I scale a drawing if the architect forgot to put dimensions on the mechanical room?
Apprentice question · 2nd Year
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How do I test a welded grease duct system for leaks (light test vs. water test)?
Apprentice question · 3rd Year
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How do I transition from rectangular black iron to a high-velocity exhaust fan?
Apprentice question · 3rd Year
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Mechanical drawing and shop drawing show different duct size
Field problem · 4th Year
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Not measuring around beam/web joist interference
Field problem · 4th Year
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PVC-Coated Duct Is Cut Without a Coating-Repair Plan
Foreman script · 3rd Year
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Required referenced detail sheet is missing from my drawing set
Field problem · 4th Year
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Roof Pitch Leaves the Curb or Duct Connection Out of Alignment
Foreman script · 3rd Year
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Stainless Duct Was Worked With Carbon-Steel Tools
Foreman script · 3rd Year
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Unknown old insulation or suspect material
Foreman script · 3rd Year
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What are the specific hangers required for PVC-coated duct in a chemical exhaust system?
Apprentice question · 3rd Year
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What is the proper welding procedure (MIG vs. TIG) for 16-gauge stainless steel duct?
Apprentice question · 3rd Year
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What is the required clearance to combustibles for a Type 1 grease duct (black iron)?
Apprentice question · 3rd Year
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What's the trick to installing fire-wrap (Zero Clearance insulation) on grease duct?
Apprentice question · 3rd Year
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Why does aluminum ductwork require closer hanger spacing than galvanized?
Apprentice question · 3rd Year
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Why should a helper inspect extension cords before running power tools?
Apprentice question · 1st Year
Check first
A branch tap is laid out off and the duct runs crooked
Field problem · 2nd Year
Check first
A fitting can physically swing into place not checked
Field problem · 2nd Year
Check first
A rolling offset was guessed and the pipe points crooked
Field problem · 2nd Year
Check first
A vertical duct riser drifts out of plumb in a shaft
Field problem · 2nd Year
Check first
Access door swing or panel removal not accounted for
Field problem · 2nd Year
Check first
Aluminum Duct Deforms While Fasteners Are Started
Field problem · 2nd Year
Check first
Aluminum Duct Deforms While Fasteners Are Started
Foreman script · 3rd Year
Check first
Architectural Duct Mockup and Installed Work Do Not Match
Foreman script · 3rd Year
Check first
Ceiling grid height against duct elevation not checked
Field problem · 2nd Year
Check first
Coordination (BIM) Drawings
Foreman script · 3rd Year
Check first
Damaged Galvanized Coating Touch-Up Hold Point
Field problem · 2nd Year
Check first
Damaged Galvanized Coating Touch-Up Hold Point
Foreman script · 2nd Year
Check first
Dissimilar Metals Touch at an Exterior Duct Support
Field problem · 2nd Year
Check first
Do Not Paint Over Inspection Items
Field problem · 2nd Year
Check first
Do Not Paint Over Inspection Items
Foreman script · 1st Year
Check first
Door/elevator/stair access for large duct not checked
Field problem · 2nd Year
Check first
Duct Elevations And BOD/TOD
Foreman script · 2nd Year
Check first
Exterior Duct Coating Is Damaged by Slings or Handling
Foreman script · 3rd Year
Check first
Exterior Insulation Jacket Is Punctured at a Support
Foreman script · 3rd Year
Check first
Failing to flag a design error in the drawings - installing it wrong anyway
Common mistake · 2nd Year
Check first
Field dimension not matching shop drawing dimension
Field problem · 2nd Year
Check first
Finished ceiling height before hanging not confirmed
Field problem · 2nd Year
Check first
Getting A Duct Inspection Ready
Field problem · 2nd Year
Check first
Getting A Duct Inspection Ready
Foreman script · 3rd Year
Check first
Hanger spacing before loading duct not verified
Field problem · 2nd Year
Check first
How do I cross-reference the mechanical plan with the reflected ceiling plan (RCP)?
Apprentice question · 2nd Year
Check first
How do I find the duct elevations (Bottom of Duct / BOD) on the mechanical plans?
Apprentice question · 2nd Year
Check first
How do I fix a branch duct tap that was laid out off center?
Apprentice question · 2nd Year
Check first
How do I fix a vertical duct riser that is drifting out of plumb?
Apprentice question · 3rd Year
Check first
How do I locate the architectural grid lines to measure out my hanger locations?
Apprentice question · 2nd Year
Check first
How do I read the equipment schedule to know which VAV goes in which room?
Apprentice question · 2nd Year
Check first
I have to check BIM or a coordination model before hanging duct
Field problem · 2nd Year
Check first
Incorrectly reading isometric drawings and building fittings that are handed wrong
Common mistake · 2nd Year
Check first
Marking hangers from the wrong side of a beam
Field problem · 2nd Year
Check first
Material does not match spec
Foreman script · 4th Year
Check first
Measure a Field Transition From Actual Connection Faces
Field problem · 2nd Year
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Measure a Field Transition From Actual Connection Faces
Foreman script · 1st Year
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Measuring to face of wall instead of gridline/control line
Field problem · 2nd Year
Check first
Missing insulation thickness when measuring clearance
Field problem · 2nd Year
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Missing offset travel when laying out offsets
Field problem · 2nd Year
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Missing slope/drainage needs on special exhaust
Field problem · 2nd Year
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Missing the thickness of Ductmate/TDC flange in tight space
Field problem · 2nd Year
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Missing to measure finished wall thickness before duct sleeve
Field problem · 2nd Year
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Missing to subtract throat/heel of elbow in layout
Field problem · 2nd Year
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Mixing up inside and outside dimensions when reading blueprints
Common mistake · 2nd Year
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Not adjusting layout for building out-of-square conditions
Common mistake · 2nd Year
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Not allowing for connector length in run measurement
Field problem · 2nd Year
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Not calibrating a digital angle finder before use on a critical layout
Common mistake · 2nd Year
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Not field-measuring before ordering or cutting duct
Field problem · 2nd Year
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Not marking anchor points before drilling overhead
Field problem · 2nd Year
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Not measuring diagonal clearance for large fittings
Field problem · 2nd Year
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Not snapping/chalking straight hanger lines
Field problem · 2nd Year
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Not specifying the correct duct construction class to the shop when ordering prefab sections
Common mistake · 2nd Year
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Not squaring the layout line before scribing, resulting in parallelogram cuts
Common mistake · 2nd Year
Check first
PVC-Coated Duct Is Cut Without a Coating-Repair Plan
Field problem · 2nd Year
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Parallel 45-degree offsets collide because both travel pieces were cut the same
Field problem · 2nd Year
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Plumb/level before final fastening not checked
Field problem · 2nd Year
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Pre-Cover Inspection Walk
Field problem · 2nd Year
Check first
Pre-Cover Inspection Walk
Foreman script · 2nd Year
Check first
Protective Film Is Trapped Under Exposed-Duct Joints or Hangers
Foreman script · 3rd Year
Check first
Riser Orientation Mark Is Missing Before the Section Is Raised
Field problem · 2nd Year
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Signing off on work that you did not personally inspect
Common mistake · 2nd Year
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Skipping a harness inspection before climbing a lift or scaffold
Common mistake · 2nd Year
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Stainless Duct Was Worked With Carbon-Steel Tools
Field problem · 2nd Year
Check first
Two duct sizes show on the same run and I do not know which applies
Field problem · 2nd Year
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Using eyeball layout instead of a control point
Field problem · 2nd Year
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Vertical Duct Is Accumulating Elevation Error Floor by Floor
Field problem · 2nd Year
Check first
What does "NIC" mean when it's stamped next to a piece of equipment?
Apprentice question · 2nd Year
Check first
What does a "hash mark" with a number inside a duct run mean on a blueprint?
Apprentice question · 2nd Year
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What does it mean when the print says "field verify" for a dimension?
Apprentice question · 2nd Year
Check first
What is the symbol for a drop (duct going down) versus a rise (duct going up)?
Apprentice question · 2nd Year
Check first
When To Ask An RFI
Foreman script · 3rd Year
Check first
Wrong fitting delivered or staged
Foreman script · 2nd Year
Check first
Wrong offset direction because plan is rotated
Field problem · 2nd Year
Check first
Wrong tape measure reading under pressure
Field problem · 2nd Year
Coordinate
Closeout Photo Documentation
Foreman script · 2nd Year
Coordinate
Confusing SA, RA, EA, OA, and MUA tags
Field problem · 3rd Year
Coordinate
Confusing duct offsets shown on plan vs real ceiling space
Field problem · 3rd Year
Coordinate
Confusing existing duct with new duct on the print
Field problem · 3rd Year
Coordinate
Curb/opening size before equipment connection not verified
Field problem · 3rd Year
Coordinate
Duct elevation with sprinkler or cable tray not coordinated
Field problem · 3rd Year
Coordinate
Ductwork Color Coding
Foreman script · 1st Year
Coordinate
Ductwork Labeling Requirements
Foreman script · 2nd Year
Coordinate
Ductwork Protection During Construction
Foreman script · 1st Year
Coordinate
Existing Duct Cannot Be Positively Identified Before Remodel Demolition
Field problem · 3rd Year
Coordinate
Failing to mark up as-built changes on the job drawings
Common mistake · 3rd Year
Coordinate
I already covered hidden work before it was checked. What now?
Field problem · 3rd Year
Coordinate
I already hung the wrong size duct or installed from the wrong pile
Field problem · 3rd Year
Coordinate
I am holding a mechanical plan and do not know how to orient it
Field problem · 3rd Year
Coordinate
I found bad work during a pre-cover walk and it is not my install
Field problem · 3rd Year
Coordinate
Ignoring airflow arrows on plan
Field problem · 3rd Year
Coordinate
Installing from architectural ceiling plan instead of mechanical plan
Field problem · 3rd Year
Coordinate
Layout from wrong gridline or column line
Field problem · 3rd Year
Coordinate
Layout marks hidden by other trades or ceiling work
Field problem · 3rd Year
Coordinate
Measuring from an unverified existing duct
Field problem · 3rd Year
Coordinate
Misreading rectangular vs round/spiral symbol
Field problem · 3rd Year
Coordinate
Missing BOD, TOD, AFF, or centerline elevation notes
Field problem · 3rd Year
Coordinate
Missing a keynote that changes the connection type
Field problem · 3rd Year
Coordinate
Missing a note that says duct is internally lined
Field problem · 3rd Year
Coordinate
Missing access panel notes around dampers/equipment
Field problem · 3rd Year
Coordinate
Missing demolition/existing duct notes
Field problem · 3rd Year
Coordinate
Missing detail callouts for special connection or support
Field problem · 3rd Year
Coordinate
Missing insulation note that affects clearance
Field problem · 3rd Year
Coordinate
Missing test/balance damper location on drawings
Field problem · 3rd Year
Coordinate
Missing to mark airflow direction on staged duct
Field problem · 3rd Year
Coordinate
North/plan orientation before layout not checked
Field problem · 3rd Year
Coordinate
Not asking when design conflicts with field condition
Field problem · 3rd Year
Coordinate
Not finding equipment connection detail before installing duct
Field problem · 3rd Year
Coordinate
Not finding the correct drawing revision
Field problem · 3rd Year
Coordinate
Not labeling fittings by area/system before install
Field problem · 3rd Year
Coordinate
Not matching diffuser neck size to branch size
Field problem · 3rd Year
Coordinate
Not matching shop drawing tags to field labels
Field problem · 3rd Year
Coordinate
Not preparing a written punch list walk with the GC before final inspection
Common mistake · 3rd Year
Coordinate
Not understanding dashed/hidden lines for duct above/below
Field problem · 3rd Year
Coordinate
Not understanding scale and measuring off reduced prints
Field problem · 3rd Year
Coordinate
Not understanding what a mechanical schedule is telling you
Field problem · 3rd Year
Coordinate
Reading A Mechanical Plan
Foreman script · 1st Year
Coordinate
Reading duct size backwards or mixing width/height
Field problem · 3rd Year
Coordinate
Schedule for diffuser/terminal box size not checked
Field problem · 3rd Year
Coordinate
Section/elevation view before hanging duct not checked
Field problem · 3rd Year
Coordinate
Spiral Seams Face Different Directions in an Exposed Run
Foreman script · 3rd Year
Coordinate
Using old marked-up print with no verification
Field problem · 3rd Year
Coordinate
Visible Duct Labels and Layout Marks Remain at Turnover
Foreman script · 3rd Year
Coordinate
What does “check the spec” mean on a commercial job?
Field problem · 3rd Year
Standard
A 45-degree offset travel piece was cut to the flat distance and falls short
Field problem · 1st Year
Standard
Closeout Photo Angles
Field problem · 1st Year
Standard
Closeout Photo Angles
Foreman script · 1st Year
Standard
Closeout Photo Documentation
Field problem · 1st Year
Standard
Commissioning Tag And Deficiency Notes
Field problem · 1st Year
Standard
Commissioning Tag And Deficiency Notes
Foreman script · 2nd Year
Standard
Duct Interior Debris Cleanup
Field problem · 1st Year
Standard
Duct Interior Debris Cleanup
Foreman script · 1st Year
Standard
Duct Labels And System Tags
Field problem · 1st Year
Standard
Duct Labels And System Tags
Foreman script · 1st Year
Standard
Ductwork Color Coding
Field problem · 1st Year
Standard
Ductwork Labeling Requirements
Field problem · 1st Year
Standard
Ductwork Protection During Construction
Field problem · 1st Year
Standard
Layout and Measuring Tools: Verify Before Trusting the Mark
Field problem · 1st Year
Standard
Layout and Measuring Tools: Verify Before Trusting the Mark
Foreman script · 1st Year
Standard
Offset Layout with Construction Calculator
Field problem · 1st Year
Standard
Offset Layout with Construction Calculator
Foreman script · 1st Year
Standard
Open Duct End Protection
Field problem · 1st Year
Standard
Open Duct End Protection
Foreman script · 1st Year
Standard
Punchlist Area Walk
Field problem · 1st Year
Standard
Punchlist Area Walk
Foreman script · 1st Year
Standard
Read Duct Symbols and Device Callouts Together
Field problem · 1st Year
Standard
Read Duct Symbols and Device Callouts Together
Foreman script · 1st Year
Standard
Use the Correct Architect or Engineer Scale
Field problem · 1st Year
Standard
Use the Correct Architect or Engineer Scale
Foreman script · 1st Year
Reference
BOD, TOD, and Centerline
Reference · 1st Year
Reference
Duct Size Reading
Reference · 1st Year
Reference
Field Verify Means Stop Guessing
Reference · 1st Year
Reference
Gridlines and Benchmarks
Reference · 1st Year
Reference
How to Read a Mechanical Plan for the First Time
Reference · 1st Year
Reference
What “Check the Spec” Means
Reference · 1st Year