Many large open-plan offices have no extra space near exterior windows to build new enclosed meeting rooms, forcing teams to create private meeting zones deep in the center of the floor plan with no access to natural light. EPS Cement Sandwich Panel is the perfect material to build these internal windowless meeting rooms, as you can easily cut custom hidden ventilation channels inside the panel core to integrate fresh air supply and exhaust systems directly into the partition walls. This lets you maintain a constant flow of fresh air inside the windowless meeting room, so people inside never feel stuffy or uncomfortable even during 2-hour long meetings. The excellent sound insulation performance of the panels ensures that no noise from the meeting leaks out into the surrounding open office, and no external open-office noise disturbs the people inside the meeting. You can also install large custom glass windows on the upper half of the EPS Cement Sandwich Panel walls, to let natural light from the surrounding open office flow into the meeting room, making the windowless space feel far brighter and less claustrophobic. Many companies that added these internal meeting rooms reported that they gained 3 extra private meeting spaces without extending their total office footprint, completely eliminating the long waiting list for meeting rooms that used to frustrate their whole team.