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INDIAN RIVER COUNTY JULY 25, 2014 <br />INTERGENERATIONAL RECREATION CENTER 100% CONSTRUCTION DOCUMENTS <br />SECTION 115213 - PROJECTION SCREENS <br />PART 1 - GENERAL <br />1.1 RELATED DOCUMENTS <br />A. Drawings and general provisions of the Contract, including General and Supplementary <br />Conditions and Division 01 Specification Sections, apply to this Section. <br />1.2 SUMMARY <br />A. Section Includes: <br />1. Manually operated, front -projection screens. <br />2. Electrically operated, front -projection screens and controls. <br />B. Related Requirements: <br />1. Section 055000 "Metal Fabrications" for metal support framing for front -projection <br />screens. <br />2. [Section 061000 "Rough Carpentry"] [Section 061053 "Miscellaneous Rough <br />Carpentry"] for wood backing for screen installation. <br />3. Section 064600 "Wood Trim" for [wood trim] [wood trim and wood ceiling closure <br />panel] for recessed screen installation. <br />4. Section 115213.19 'Rear Projection Screens." <br />1.3 DEFINITIONS <br />A. Gain: Ratio of light reflected from screen material to that reflected perpendicularly from a <br />magnesium carbonate surface as determined per SMPTE RP 94. <br />B. Half -Gain Angle: The angle, measured from the axis of the screen surface to the most central <br />position on a perpendicular plane through the horizontal centerline of the screen where the gain <br />is half of the peak gain. <br />1.4 ACTION SUBMITTALS <br />A. Product Data: For each type of product. <br />B. Shop Drawings: Show layouts and types of front -projection screens. Include the following: <br />1. Drop lengths. <br />2. Location of seams in viewing surfaces. <br />3. Location of screen centerline relative to ends of screen case. <br />4. Anchorage details, including connection to supporting structure for suspended units. <br />5. Details of juncture of exposed surfaces with adjacent finishes. <br />PROJECTION SCREENS 115213 - 1 <br />