Though suspended ceilings (above, right) remain the most popular ceiling system option, facility managers report that 17% of their total building square footage still features an open plenum ...

While exposed ceilings in office interiors lend a spacious, open feel, this trendy architectural feature has created a new challenge: finding a viable return air path. Plenum ceilings use the area ...

There are dozens of data center cooling methods. But multitenant, shared location data center operator Involta LLC said it believes its HVAC design team has developed one of the industry’s most ...