Make-up air + pressure balance
If doors are hard to open, drafts are pulling through openings, odours move where they should not, or exhaust systems seem to underperform when the building is closed up, you may have a make-up air and building pressure problem.
When a building exhausts more air than it replaces, the facility can become starved for air. That can show up as discomfort, operational issues, or weaker process exhaust performance.
We look at the practical balance between supply and exhaust and document what appears to be happening under real operating conditions, not just what the drawings may have intended years ago.
How much air major process exhaust and dust collection systems appear to be pulling from the building.
Whether the make-up air system is actually delivering enough replacement air when production is running.
Door behaviour, infiltration patterns, and simple field indicators that point to imbalance.
Many pressure problems are worse in winter when openings are shut and systems are under the most stress.
We look at how process exhaust, HVAC, and make-up air affect each other.
We report likely causes and realistic next steps instead of simply saying “add more air” without context.
Negative building pressure is often tied to a larger supply-and-exhaust imbalance. These related pages cover the most common connected services.
Review supply versus exhaust and determine whether the building is being starved for replacement air.
View service →
Investigate broader plant airflow issues involving drafts, odours, exhaust performance, and operating conditions.
View service →
Negative pressure can affect local exhaust capture, especially when systems compete for air.
View service →
Tell us what the building is doing: door issues, drafts, odours, or weak exhaust performance. We can scope a focused site review.
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