![]() ![]() Increased Cooling Capacity: Heating, ventilating, and air-conditioning (HVAC) systems for Auditorium spaces are sized and zoned to accommodate varying internal loads, which are a function of audience sizes, performance lighting loads, and projection equipment.For more information, see WBDG Productive-Provide Comfortable Environments and Acoustic Comfort. Strategies to achieve the recommended NC and STC ranges include, for example: Type II vinyl wall covering and fabric covered acoustical wall panels for the interior wall finish in the auditorium Type II vinyl wall covering for the stage area Type II vinyl wall coverings for 1/3 of the front of the orchestra (audience) sidewalls and fabric covered acoustical panels for 2/3 of the back of the orchestra (audience) sidewalls fabric covered acoustical panels for rear walls and a plaster and plywood combination-because of their reverberation characteristics-for the ceiling. For performance spaces and general presentation spaces, recommended noise criteria (NC) rating ranges from NC–20 to NC–30 recommended sound transmission class (STC) rating ranges from STC 40 to STC 50. Special Acoustical Design: Quality acoustical characteristics are important in Auditorium spaces so that performances and presentations can be clearly heard and understood.See also WBDG Secure / Safe-Fire Protection. Occupancy: Occupancy Group Classification is Assembly A1 or A3 as per IBC, with sprinkler protected construction, and GSA Acoustical Class A space requiring special acoustical design.See also WBDG Electric Lighting Controls. Lighting systems should be flexible to accommodate various performance venues (e.g., lectures, plays, musical performances, etc.) in the Auditorium. Special Lighting: Dramatic lighting systems include front lighting, foot lighting, spot lights, follow spot lights, beam lights, and flood lights, and a projection room/booth with manual and programmable lighting controls, and space for the spot light operator.Wheelchair access option-removable seats in sections of two and accessible end chairs for mobility limited occupants should be provided. Seat number/row letters should be Americans with Disabilities Act (ADA) compliant. The seats may be fully upholstered or wood contoured outer back and seat shells with wood armrests with tablet arm option and aisle light option at row ends. Fixed Seats: Typically, fixed seats with tilting upholstered seat and back, integral arm and tablet arm are provided with articulated back for maximum occupant passage space between rows.Note that the bottom and intermediate rows should be directly accessible from entry levels to allow for Americans with Disabilities Act Accessibility Guidelines for Buildings and Facilities (ADAAG) compliant accessible seating positions. Sloped Floors: Sloped floors, with level terraces for each row of seating, help provide the proper sightlines from the audience to the stage.For a complete list and definitions of the design objectives within the context of whole building design, click on the titles below. Typical features of Auditorium space types include the list of applicable design objectives elements as outlined below. ![]() Raised stage/dais floors and special lighting equipment are often required as well. As such, they tend to have wide spans and are multiple-stories high in order to accommodate seating, sightlines, and acoustical requirements. Space AttributesĪuditorium spaces are designed to accommodate large audiences. Auditorium space types do not include such features as sound reinforcement systems, audiovisual systems and projection screens, food service facilities, proscenium stages with heights greater than 50'– 0" or fly gallery, orchestra pits, revolving or hydraulic stage platforms, flying balconies, movable seating, or billboard systems. Auditorium space type facilities may include assembly halls, exhibit halls, auditoriums, and theaters. Auditorium space types are areas for large meetings, presentations, and performances.
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