2607.4 Area limitation and separation.
BC § 2607.4
The maximum area of a single wall panel and minimum vertical and horizontal separation requirements for exterior light-transmitting plastic wall panels shall be as provided for in Table 2607.4. The maximum percentage of wall area of any story in light-transmitting plastic wall panels shall not exceed that indicated in Table 2607.4 or the percentage of unprotected openings permitted by Section 705.8, whichever is smaller. Exceptions: 1. In structures provided with approved flame barriers extending 30 inches (760 mm) beyond the exterior wall in the plane of the floor, a vertical separation is not required at the floor except that provided by the vertical thickness of the flame barrier projection.
2.Veneers of approved weather-resistant light-transmitting plastics used as exterior siding in buildings of Type V construction in compliance with Section 1406.
3.The area of light-transmitting plastic wall panels in exterior walls of greenhouses shall be exempt from the area limitations of Table 2607.4 but shall be limited as required for unprotected openings in accordance with Section 705.8. Table 2607.4Area Limitation and Separation Requirements for Light-Transmitting Plastic Wall Panels a Fire Separation Distance (feet)Class of PlasticMaximum Percentage Area of Exterior Wall in Plastic Wall PanelsMaximum Single Area of Plastic Wall Panels (square feet)Minimum Separation of Plastic Wall Panels (feet)VerticalHorizontalFire Separation Distance (feet)Class of PlasticMaximum Percentage Area of Exterior Wall in Plastic Wall PanelsMaximum Single Area of Plastic Wall Panels (square feet)Minimum Separation of Plastic Wall Panels (feet)VerticalHorizontalLess than 6 —Not PermittedNot Permitted——6 or more but less than 11 CC1105084CC2Not PermittedNot Permitted——11 or more but less than or equal to 30 CC1259064CC2157084Over 30 CC150Not Limited3 b0CC2501006 b3 For SI: 1 foot = 304.8 mm, 1 square foot = 0.0929 m 2 . a. For combinations of plastic glazing and plastic wall panel areas permitted, see Section 2607.6. b. For reductions in vertical separation allowed, see Section 2607.4.
