Grooved Wooden Panels

• Grooved wooden panels are comprised of three layers of materials: an acoustical felt is attached to the back of a base core board. The base core board is finished with a laminate surface, which has narrow channels machined lengthwise along the surface of the panel. The core board is a medium density fiberboard (MDF).
  
  These panels are also available in a perforated panel, which are made of the same material. The difference is that there are tiny holes along the surface of the material instead of grooves.
  
  

Fabric Wrapped Panels

• Although fabric wrapped panels are commonly used on walls, these treatments can also be installed on ceilings as well. The panels are made of a fiberglass core that is covered with a fire-treated fabric. You can purchase panels that have edges enhanced with a resin, which makes the edges more durable.
  
  

Wood Wool Cement Boards (WWCB)

• WWCB is made from a wood composite blended with cement. The material is incapable of absorbing sound, but is fireproof and shock resistant. Wood wool cement boards are also impervious to moisture and mildew. The panel can also be installed on walls and roofs.
  
  

Installation Tips

• The standard size for acoustic treatments is 12-inch by 12-inch tiles. There are also some 12-inch by 24-inch and 24-inch by 24-inch products. Some panels are available in a tongue-and- groove edges, which make the panels easier to install and ensures that the materials lock together.
  
  Follow the product instructions for installing the ceiling acoustic treatment. Some products must be stored in the job area for 24 to 48 hours in order for the material to acclimate to the setting before being installed.
  
  One method of installation is to install a metal grid, or a suspended ceiling, and simply drop the panels in place. Usually, the installation starts with the border panels. Another option is to install 1-inch by 2-inch furring strips on the ceiling and use adhesive to apply the panels to the ceiling. You can also choose to staple the panels to the furring strips.
  
  For ceilings that are already in place, such as plaster and drywall, as long as the material is smooth and solid, you can attach the panels directly to the ceiling. Choose staples or adhesive to secure the panels.