Mixed uses under one roofline

Thornton has stretches of flex and industrial buildings near the I-25 corridor where an office front is paired with a workshop or storage area behind. Several small tenants may share a roof, a dock and an air system. A smell in the office bay can come from the process next door rather than from anything the office does.

Trucks idling at docks, product staging, adhesives, coatings and cleaning chemicals all add to the mix. Because uses change as tenants come and go, the odor pattern in a building may shift over a year even though the building itself has not changed.

Another factor is how a building changes over time. A flex bay that held storage last year may house light assembly this year, and the air systems may not have been updated to match. Asking when the neighboring uses changed and whether the ventilation was reviewed at that point can explain why an old smell is new to you. A tenant who documents the change in pattern is better placed to raise it with the owner.

Where to look first

Dock area
Idling vehicles, product staging and door pressure
Roof
Exhaust fans next to rooftop unit intakes
Shared walls
Gaps above demising walls and around penetrations
Neighbors
What each tenant is permitted to use under its lease

A first week plan for an office bay

  1. Safety check

    If anyone has symptoms or the smell is strong and unfamiliar, leave and call 911 from outside.

  2. Map neighbors

    List who is on each side and behind, and what they do.

  3. Log timing

    Note whether the smell matches deliveries, shifts or particular work days.

  4. Talk to the manager

    Share the log and ask about exhaust and intake locations on the roof.

  5. Test one change

    Try a short trial, such as moving a task or adjusting a door, and see whether the pattern changes.

Questions for the property manager

  1. Which tenants handle solvents, coatings or similar materials?
  2. Where does each exhaust fan discharge relative to the office intakes?
  3. How are hazardous materials stored and reviewed?
  4. Has the fire department or building office reviewed the uses on this roof?
Map of I-25 corridor, Thornton. It shows an area, not an office or a job site.

Common questions

Is dock exhaust a typical cause of office odor?
It can be, especially when door pressure pulls outside air into an adjoining bay.
Who handles an odor caused by a neighbor's process?
The property manager is the first point of contact, working through the leases.

General information for Westminster, not a quote or professional advice. In an emergency, call 911.