Apply or mount acoustical tiles or blocks, strips, or sheets of shock-absorbing materials to ceilings and walls of buildings to reduce or reflect sound. Materials may be of decorative quality. Includes lathers who fasten wooden, metal, or rockboard lath to walls, ceilings or partitions of buildings to provide support base for plaster, fire-proofing, or acoustical material.

Applies acoustical tiles or shock-absorbing materials to ceilings and walls of buildings to reduce or reflect sound and to decorate rooms. Washes concrete surfaces with washing soda and zinc sulfate solution before mounting tile to increase adhesive qualities of surfaces. Inspects furrings, mechanical mountings, and masonry surface for plumbness and level, using spirit or water level. Hangs dry lines (stretched string) to wall molding to guide positioning of main runners. Nails or screws molding to wall to support and seals joint between ceiling tile and wall. Scribes and cuts edges of tile to fit wall where wall molding is not specified. Nails channels or wood furring strips to surfaces to provide mounting for tile. Measures and marks surface to lay out work according to blueprints and drawings. Cuts tiles for fixture and borders, using keyhole saw, and inserts tiles into supporting framework. Applies cement to back of tile and presses tile into place, aligning with layout marks and joints of previously laid tile.

Building and Construction -- Knowledge of materials, methods, and the tools involved in the construction or repair of houses, buildings, or other structures such as highways and roads. Mathematics -- Knowledge of arithmetic, algebra, geometry, calculus, statistics, and their applications.

Equipment Selection -- Determining the kind of tools and equipment needed to do a job.

Manual Dexterity -- The ability to quickly move your hand, your hand together with your arm, or your two hands to grasp, manipulate, or assemble objects. Extent Flexibility -- The ability to bend, stretch, twist, or reach with your body, arms, and/or legs. Arm-Hand Steadiness -- The ability to keep your hand and arm steady while moving your arm or while holding your arm and hand in one position.

Handling and Moving Objects -- Using hands and arms in handling, installing, positioning, and moving materials, and manipulating things. Performing General Physical Activities -- Performing physical activities that require considerable use of your arms and legs and moving your whole body, such as climbing, lifting, balancing, walking, stooping, and handling of materials. Inspecting Equipment, Structures, or Material -- Inspecting equipment, structures, or materials to identify the cause of errors or other problems or defects. Getting Information -- Observing, receiving, and otherwise obtaining information from all relevant sources. Estimating the Quantifiable Characteristics of Products, Events, or Information -- Estimating sizes, distances, and quantities; or determining time, costs, resources, or materials needed to perform a work activity.