Coolmonkey · Hall cooling
Industrial hall cooling: skylight shading or air conditioning?
Much of a hall's summer heat load enters through its roof skylights. Air conditioning removes that heat only after it is inside. Coolmonkey external shading stops it before the glazing — passively, with no energy consumption.
01 — Why halls overheat
Heat enters mainly from above
Solar radiation passes through skylight glazing and heats the structure, the air and the equipment below. Air conditioning then works against a constant energy input. It is more effective to limit heat gain at the source — on the outside of the skylight.
02 — Measured results
What the measurements showed
11.4 °C
Drop in skylight structure temperature in Hall M13, Mladá Boleslav (from 51.1 °C to 39.7 °C) after CM40 shading.
13.0 °C
Average difference of selected daily maxima under glass and under white Coolmonkey CM40 shading fabric in the summer test.
19.5 °C
Difference on 15 July 2026: glass 56.4 °C, Coolmonkey CM40 fabric 36.9 °C.
03 — Comparison
Coolmonkey shading vs. active air conditioning
| Coolmonkey external shading | Air conditioning | |
|---|---|---|
| Principle | Stops radiation before it enters the hall | Removes heat already inside |
| Energy use | None, passive solution | Continuous throughout the season |
| Costs | One-off investment, payback in 2–4 years | Units and ductwork plus running costs |
| Maintenance | Minimal, seasonal check and cleaning | Regular service, refrigerant, filters |
| Daylight | Preserved, without glare | Unchanged |
| Combination | Reduces the load cooling must cover | Lower load means less capacity needed |
Cooling air by 1 °C is roughly three times more expensive than heating it. Shading need not replace air conditioning — but in many halls it reduces the required cooling capacity and running costs.
Want the savings calculated for your hall?
We will review your skylights, operation and existing cooling and prepare a quote.
Request a free quote