Paint Booth Air Systems for Minnesota CTE Programs
School paint booths do not run all day. A booth in a CTE shop may spray for an hour, sit idle, then run again for the next class. In Minnesota, where every cubic foot of exhaust has to be replaced by heated outside air, that pattern makes controls and air handling just as important as the booth itself. A system that runs only when needed protects both the finish and the district's heating budget.
Discuss your installationRunning Air Only During Class Time
Booth exhaust and make-up air should run while students are spraying and stop when they are not. Interlocked controls, timers and clear start-stop procedures prevent the system from running through lunch or overnight. We wire controls so the instructor can start the booth easily and the system shuts down predictably.
Heated Air in a Northern Climate
Replacement air for a booth has to be heated in winter, and the heater has to be sized for cold mornings when class starts. Underheated air makes for cold students and slow drying. We size the make-up air unit, plan its gas service and place its intake away from booth exhaust and other building discharges.
- Heater sized for the coldest operating days
- Intake separated from exhaust discharge
- Interlock between exhaust fan and make-up air
Fire Protection and Interlocks
Spray booths need fire protection inside the booth and in the exhaust duct, and they need interlocks so a fire event shuts down fans and spray equipment. In schools, the system usually ties into the building's fire alarm. We coordinate with the district's fire protection contractor and alarm vendor so all of it works together.
Spec Sheets for the Facilities Office
District facilities offices need clear information to approve, fund and schedule a project. We provide equipment details, utility needs and installation requirements in a form facilities staff can use for planning and procurement.
Planning a booth or oven project in Minnesota
Crews mobilize from Houston; Minnesota is roughly 1,050 miles away, so equipment, panels and tooling are staged and shipped ahead of the install crew.
Manufacturing in Minnesota is concentrated around Minneapolis and St. Paul, Rochester, and Duluth. The sectors most likely to be specifying spray booths, blast rooms, powder systems and cure ovens there include medical devices, food processing equipment, heavy machinery, and metal fabrication.
Cold winters mean make-up air heaters are sized for sub-freezing intake, and booth or oven placement has to account for frost lines, snow loads on roof penetrations and winter slab work.
Frequently asked questions
How do we keep the booth from running when no one is spraying?
Interlocked controls with clear start and stop procedures, sometimes with timers, keep the system tied to actual use.
Does our booth need its own make-up air?
In most cases yes, especially in cold climates. Pulling replacement air from the rest of the building can depressurize it and chill the shop.
How does the booth tie into the school fire alarm?
Through interlocks and monitoring coordinated with the alarm vendor. Details depend on the building's alarm system.
What information will the facilities office need?
Equipment specifications, electrical and gas loads, roof penetrations, structural requirements and an installation schedule.