Porous Materials

Question 1

These include various types of perforated,
unperforated, fissured or textured cellulose and mineral fiber tiles

Answer 1

Prefabricated acoustical units (wallboard and tile board)

Question 2

a plaster-like product, distinguished by its porosity after it dries. It was originally intended to create jointless surfaces (like those of ordinary plaster) that absorb sound, which ordinary plaster does not.

Answer 2

Acoustical plaster and sprayed-on materials (fibrous material w/ binder)

Question 3

a widely used ceiling material made of mineral or cellulose fibers or of fiberglass

Answer 3

Acoustical Tile

Question 4

one of variety of cellular materials, usually made of polyurethane. Foams are manufactured either with open cells ( air can be blown in and through the material) or with closed cells (each cell is sealed, the material is airtight)

Answer 4

Acoustical Foam

Question 5

manufactured from rockwool, glass fibers, wood fibers, hair felt, etc

Answer 5

Acoustical (Isolation) blankets (wool, glass fiber)

Question 6

Usually made of fiberglass or mineral fiber, are among the most common forms acoustical (also thermal) insulation in use today

Answer 6

Fibrous Batts and Blankets

Question 7

is any a variety of sprayed-on insulating material, often specified for
fireproofing application

Answer 7

Fibrous Spray

Question 8

similar to fibrous batts and blankets, except that it can be blown or dumped in place

Answer 8

Insulation Loose

Question 9

is any a variety of soft floor finishes made of synthetic materials such as nylon or natural materials such as wool

Answer 9

Carpets

Question 10

it include a range of textiles that used on their own (as curtains) or as covering for other materials that may or may not be sound absorbing.

Answer 10

Curtains and Fabrics