An open drying process uses exchange with outdoor air as part of managing the indoor drying environment. Its suitability depends on the conditions inside and outside.
What this means at your property
Opening windows can help under some conditions and work against drying under others. Outdoor humidity, temperature, weather and the building’s use all matter. It is different from a closed setup that controls the indoor air with drying equipment.
Should windows stay open while equipment runs?
Follow the drying team’s plan and ask how current outdoor conditions support that choice. Report changes such as rain or HVAC shutdowns so the approach can be reconsidered instead of assuming more outside air is always helpful.