What the shutdown actually changes
Air movement affects drying more than most people allow for. A floor mopped at half past five in a conditioned building dries at a predictable rate; the same floor mopped at seven in a sealed office in February does not. In warm weather the difference is substantial, and it turns what should be a straightforward task into one that leaves an office damp overnight.
It also affects the cleaner. Working in a closed office with no ventilation on a hot evening is materially harder than working in a conditioned one, and the practical consequence is a slower attendance rather than a complaint. Building the schedule around the conditioned period where possible is better for the result and for the person delivering it.
