Coordination, Clashes, Sequencing & Rework

168 records, red lane first.

Stop
A hanger rod is too close to a sprinkler head
Field problem · 4th Year
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A sprinkler main is sitting on my TDC flange
Field problem · 4th Year
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A storm drain pipe crosses the path of a duct run that needs a 45-degree offset
Field problem · 4th Year
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A structural column lands inside a low-pressure return duct path
Field problem · 4th Year
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Aircraft Hangar High-Bay Duct Coordination
Foreman script · 3rd Year
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Can a duct hanger rod block a fire sprinkler spray pattern?
Apprentice question · 2nd Year
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Can a structural column pass through a low-pressure return duct?
Apprentice question · 4th Year
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Clearance To Electrical Gear
Field problem · 4th Year
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Clearance To Electrical Gear
Foreman script · 2nd Year
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Clearance To Sprinkler Heads
Field problem · 4th Year
Stop
Clearance To Sprinkler Heads
Foreman script · 2nd Year
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Ductwork blocks an AHU coil removal lane
Field problem · 4th Year
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Ductwork in Elevator Shaft
Field problem · 4th Year
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Ductwork in Elevator Shaft
Foreman script · 3rd Year
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Ductwork in High-Rise Buildings
Field problem · 4th Year
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Ductwork in High-Rise Buildings
Foreman script · 3rd Year
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How do we coordinate setting equipment on a roof with the crane operator?
Apprentice question · 3rd Year
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I am being blamed for a design conflict or undocumented verbal change
Field problem · 4th Year
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I documented a clash but nobody responded and the deadline is tomorrow
Field problem · 4th Year
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I need to tell another trade to hold before they cover our access
Field problem · 4th Year
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I think my foreman's direction is wrong and need to push back professionally
Field problem · 4th Year
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Never Cut/Notch Structure
Field problem · 4th Year
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Never Cut/Notch Structure
Foreman script · 1st Year
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Not pre-planning the rigging sequence for a large air handler before the crane arrives
Common mistake · 4th Year
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Plumbing is already installed through my duct route
Field problem · 4th Year
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Plumbing pipe blocks fire damper access
Field problem · 4th Year
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Roofing Coordination Before a Duct or Curb Penetration
Field problem · 4th Year
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Roofing Coordination Before a Duct or Curb Penetration
Foreman script · 1st Year
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Siding or plywood blocks the back of an intake louver
Field problem · 4th Year
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Sprinkler pipe is sitting on my TDC flange
Apprentice question · 3rd Year
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Stadium and Arena High-Bay Duct Coordination
Field problem · 4th Year
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What do I do if the structural beams shown on the print don't exist in the field?
Apprentice question · 3rd Year
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What happens if I accidentally cut a post-tension cable in a concrete slab?
Apprentice question · 3rd Year
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Who has right-of-way when a pipe is already in the duct path?
Apprentice question · 3rd Year
Stop
Why is it bad to hang a main duct in front of an AHU coil access door?
Apprentice question · 3rd Year
Check first
A radius elbow hits a structural beam
Field problem · 2nd Year
Check first
Accepting a jobsite condition that is unsafe rather than stopping work and escalating
Common mistake · 2nd Year
Check first
Another trade pipe is resting on my duct or hanger
Field problem · 2nd Year
Check first
As-Built Redline Markups
Field problem · 2nd Year
Check first
As-Built Redline Markups
Foreman script · 2nd Year
Check first
Ask another trade to hold
Foreman script · 3rd Year
Check first
Condensate Coordination at HVAC Equipment
Field problem · 2nd Year
Check first
Condensate Coordination at HVAC Equipment
Foreman script · 1st Year
Check first
Coordinate Duct Sensor Locations Before Drilling
Field problem · 2nd Year
Check first
Coordinate Duct Sensor Locations Before Drilling
Foreman script · 1st Year
Check first
Coordination (BIM) Drawings
Field problem · 2nd Year
Check first
Duct Elevations And BOD/TOD
Field problem · 2nd Year
Check first
Ductwork in Airports and Transportation Hubs
Field problem · 2nd Year
Check first
Ductwork in Airports and Transportation Hubs
Foreman script · 3rd Year
Check first
Ductwork in Historic Buildings
Field problem · 2nd Year
Check first
Ductwork in Historic Buildings
Foreman script · 3rd Year
Check first
Ductwork in Residential High-Rise
Field problem · 2nd Year
Check first
Ductwork in Residential High-Rise
Foreman script · 2nd Year
Check first
EV Charging Area Exhaust and Equipment Clearance
Foreman script · 2nd Year
Check first
Electrical Conduit Conflict with Duct
Field problem · 2nd Year
Check first
Electrical Conduit Conflict with Duct
Foreman script · 1st Year
Check first
Fitting Becomes Trapped Above Refrigerated Cases
Foreman script · 2nd Year
Check first
Floor Openings Do Not Line Up Through the Riser
Field problem · 2nd Year
Check first
GC or other trade asks for a move that creates a problem
Foreman script · 3rd Year
Check first
Historic or Religious Building Ceiling Coordination
Foreman script · 3rd Year
Check first
How do I handle duct connections when the ceiling space is too tight?
Apprentice question · 3rd Year
Check first
How do I install ductwork around a structural column without ruining the airflow?
Apprentice question · 3rd Year
Check first
How do I mark out my floor penetrations before the concrete floor is poured?
Apprentice question · 3rd Year
Check first
How do I negotiate a clash with the electrician's cable tray?
Apprentice question · 3rd Year
Check first
How do I protect my installed ductwork from getting damaged by other trades on lifts?
Apprentice question · 3rd Year
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How do I route ductwork so I don't block access to VAV control panels?
Apprentice question · 3rd Year
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How should I handle a radius elbow that will not clear a beam?
Apprentice question · 3rd Year
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I forgot the foreman's verbal dimension or route instruction
Field problem · 2nd Year
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Long Duct Cannot Turn From the Stockroom Into the Sales Floor
Foreman script · 2nd Year
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No response on clash
Foreman script · 3rd Year
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Plumbing Pipe Conflict with Duct
Field problem · 2nd Year
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Plumbing Pipe Conflict with Duct
Foreman script · 1st Year
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Reading Structural Drawings for Beam Conflicts
Field problem · 2nd Year
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Reading Structural Drawings for Beam Conflicts
Foreman script · 1st Year
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Reflected Ceiling Plan vs HVAC Plan
Field problem · 2nd Year
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Reflected Ceiling Plan vs HVAC Plan
Foreman script · 1st Year
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Refrigeration Piping Blocks the Planned Duct Route
Foreman script · 2nd Year
Check first
Respecting Gravity Systems
Foreman script · 2nd Year
Check first
Riser Joint Cannot Be Completed With Shaft Wall Framing Installed
Foreman script · 2nd Year
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Riser Section Binds on a Sleeve or Floor Opening
Field problem · 2nd Year
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Set the Trade Stacking Order Before a Congested Zone
Field problem · 2nd Year
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Set the Trade Stacking Order Before a Congested Zone
Foreman script · 1st Year
Check first
Stadium and Arena High-Bay Duct Coordination
Foreman script · 3rd Year
Check first
The ceiling plenum is too tight for the planned duct connection
Field problem · 2nd Year
Check first
Two Trades Need the Same Space
Field problem · 2nd Year
Check first
Two Trades Need the Same Space
Foreman script · 1st Year
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VAV Reheat Coil Piping and Access Coordination
Field problem · 2nd Year
Check first
VAV Reheat Coil Piping and Access Coordination
Foreman script · 1st Year
Check first
What do I do if the architectural ceiling is dropped lower than the plans state?
Apprentice question · 3rd Year
Check first
What is the process for submitting an RFI (Request for Information) when a clash stops work?
Apprentice question · 3rd Year
Check first
When To Ask An RFI
Field problem · 2nd Year
Check first
Who has the right-of-way in a ceiling plenum: Ductwork, Gravity Plumbing, or Sprinklers?
Apprentice question · 3rd Year
Coordinate
Access Door Opens but Refrigeration Piping Blocks the Working Space
Field problem · 3rd Year
Coordinate
Aircraft Hangar High-Bay Duct Coordination
Field problem · 3rd Year
Coordinate
Another trade blocks a VAV box, duct drop, or equipment access
Field problem · 3rd Year
Coordinate
Another trade installs through planned access space
Field problem · 3rd Year
Coordinate
Apprentice does not know who to ask for clash resolution
Field problem · 3rd Year
Coordinate
As-Built Drawing Updates
Foreman script · 2nd Year
Coordinate
Borrowing materials from another trade's stock without permission
Common mistake · 3rd Year
Coordinate
Cable tray blocks planned elevation
Field problem · 3rd Year
Coordinate
Cable tray installed at duct elevation
Field problem · 3rd Year
Coordinate
Ceiling trade covers access before inspection
Field problem · 3rd Year
Coordinate
Condensation Appears Above Freezer or Refrigerated Aisles
Field problem · 3rd Year
Coordinate
Customer-Area Floor and Refrigerated Cases Are Not Protected
Field problem · 3rd Year
Coordinate
Cutting or Drilling Duct Above Operating Food Displays
Field problem · 3rd Year
Coordinate
Diffuser Blowing Across an Open Refrigerated Case
Field problem · 3rd Year
Coordinate
Duct Blocks Access to Refrigeration Valves or Service Points
Field problem · 3rd Year
Coordinate
Duct blocks access to valve/panel/cleanout
Field problem · 3rd Year
Coordinate
Duct installed before wall/ceiling opening verified
Field problem · 3rd Year
Coordinate
Duct run installed before equipment final location
Field problem · 3rd Year
Coordinate
Duct staged in wrong zone/floor
Field problem · 3rd Year
Coordinate
EV Charging Area Exhaust and Equipment Clearance
Field problem · 3rd Year
Coordinate
Field route changes without RFI/approval
Field problem · 3rd Year
Coordinate
Finished or Painted Spiral Duct Was Scratched During Installation
Field problem · 3rd Year
Coordinate
Fireproofing or Paint Overspray Lands on Exposed Retail Duct
Field problem · 3rd Year
Coordinate
Fitting Becomes Trapped Above Refrigerated Cases
Field problem · 3rd Year
Coordinate
Foreman instruction not written down and forgotten
Field problem · 3rd Year
Coordinate
Hanger layout conflicts with light fixtures/ceiling grid
Field problem · 3rd Year
Coordinate
Historic or Religious Building Ceiling Coordination
Field problem · 3rd Year
Coordinate
How To Ask A Good Field Question
Foreman script · 1st Year
Coordinate
I installed the duct or fitting and now it does not line up. What do I check?
Field problem · 3rd Year
Coordinate
Installer takes blame for design conflict because no documentation
Field problem · 3rd Year
Coordinate
Installing from old coordination drawing
Field problem · 3rd Year
Coordinate
Insulator cannot access joints because duct too tight
Field problem · 3rd Year
Coordinate
Jobsite priority changes but material remains staged old way
Field problem · 3rd Year
Coordinate
Large duct cannot fit through completed framing
Field problem · 3rd Year
Coordinate
Laying out a complex mechanical room without a coordinated drawing set signed off by all trades
Common mistake · 3rd Year
Coordinate
Long Duct Cannot Turn From the Stockroom Into the Sales Floor
Field problem · 3rd Year
Coordinate
Material arrives late or wrong and run cannot continue
Field problem · 3rd Year
Coordinate
Missing coordination around structural steel
Field problem · 3rd Year
Coordinate
Mixing up heating and cooling sequences when pre-wiring a unit
Common mistake · 3rd Year
Coordinate
Night Tie-In Cannot Be Completed Inside the Shutdown Window
Field problem · 3rd Year
Coordinate
Night-Shift Handoff Leaves Open Duct or Unfinished Protection
Field problem · 3rd Year
Coordinate
Not attending pre-installation coordination meetings between trades
Common mistake · 3rd Year
Coordinate
Not communicating field conflict before fabricating fix
Field problem · 3rd Year
Coordinate
Not coordinating supply air outlet placement to avoid short-circuiting with return air intakes
Common mistake · 3rd Year
Coordinate
Not coordinating with the fire protection contractor before installing duct near sprinklers
Common mistake · 3rd Year
Coordinate
Not coordinating with the plumber before installing duct that blocks a drain cleanout
Common mistake · 3rd Year
Coordinate
Not issuing an RFI when a field condition contradicts the contract documents
Common mistake · 3rd Year
Coordinate
Not marking installed run complete/needs seal/needs support
Field problem · 3rd Year
Coordinate
Not reporting clash until duct is already installed
Field problem · 3rd Year
Coordinate
Not understanding the sequence of operations for a heat recovery wheel
Common mistake · 3rd Year
Coordinate
Other trade uses duct/hanger as support
Field problem · 3rd Year
Coordinate
Plumbing installed after duct compresses flex/blocks access
Field problem · 3rd Year
Coordinate
Produce-Mister Humidity Is Causing Nearby Duct Sweating
Field problem · 3rd Year
Coordinate
Refrigeration Piping Blocks the Planned Duct Route
Field problem · 3rd Year
Coordinate
Respecting Gravity Systems
Field problem · 3rd Year
Coordinate
Rework from wrong elevation found after ceiling grid
Field problem · 3rd Year
Coordinate
Riser Joint Cannot Be Completed With Shaft Wall Framing Installed
Field problem · 3rd Year
Coordinate
Riser Offset Lands Inside the Floor Zone
Field problem · 3rd Year
Coordinate
Sales-Floor Spiral Is Connected but Visually Crooked
Field problem · 3rd Year
Coordinate
Shift change/handoff loses issue details
Field problem · 3rd Year
Coordinate
Sprinkler main forces duct offset
Field problem · 3rd Year
Coordinate
Sprinkler pipe blocks duct route
Field problem · 3rd Year
Coordinate
TAB cannot reach balancing damper
Field problem · 3rd Year
Coordinate
Temporary Barriers or Negative-Air Equipment Block the Installation Route
Field problem · 3rd Year
Coordinate
Temporary Covers or Debris Remain Before the Store Reopens
Field problem · 3rd Year
Coordinate
The GC or another trade tells me to move duct but it creates an access problem
Field problem · 3rd Year
Standard
As-Built Drawing Updates
Field problem · 1st Year
Standard
How To Ask A Good Field Question
Field problem · 1st Year
Standard
Reading A Mechanical Plan
Field problem · 1st Year
Standard
Writing an RFI for Duct Conflicts
Field problem · 1st Year
Standard
Writing an RFI for Duct Conflicts
Foreman script · 2nd Year
Reference
BIM / Coordination Model Basics
Reference · 1st Year
Reference
Coordination Priority
Reference · 1st Year
Reference
Measure for a field RFI
Reference · 1st Year
Reference
Mechanical Drawing Hierarchy
Reference · 1st Year
Reference
RFI Basics
Reference · 1st Year