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// CODE SNIPPET

Section 2609 Light-Transmitting Plastic Roof Panels

Building Code 2021 of Illinois > 26 Plastic > 2609 Light-Transmitting Plastic Roof Panels
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2609.1 General

Light-transmitting plastic roof panels shall comply with this section and Section 2606. Light-transmitting plastic roof panels shall not be installed in Groups H, I-2 and I-3. In all other groups, light-transmitting plastic roof panels shall comply with any one of the following conditions:
  1. The building is equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1.
  2. The roof construction is not required to have a fire-resistance rating by Table 601.
  3. The roof panels meet the requirements for roof coverings in accordance with Chapter 15.

2609.2 Separation

Individual roof panels shall be separated from each other by a distance of not less than 4 feet (1219 mm) measured in a horizontal plane.
Exceptions:
  1. The separation between roof panels is not required in a building equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1.
  2. The separation between roof panels is not required in low-hazard occupancy buildings complying with the conditions of Section 2609.4, Exception 2 or 3.

2609.3 Location

Where exterior wall openings are required to be protected by Section 705.8, a roof panel shall not be installed within 6 feet (1829 mm) of such exterior wall.

2609.4 Area Limitations

Roof panels shall be limited in area and the aggregate area of panels shall be limited by a percentage of the floor area of the room or space sheltered in accordance with Table 2609.4.
Exceptions:
  1. The area limitations of Table 2609.4 shall be permitted to be increased by 100 percent in buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1.
  2. Low-hazard occupancy buildings, such as swimming pool shelters, shall be exempt from the area limitations of Table 2609.4, provided that the buildings do not exceed 5,000 square feet (465 m2) in area and have a minimum fire separation distance of 10 feet (3048 mm).
  3. Greenhouses that are occupied for growing or maintaining plants, without public access, shall be exempt from the area limitations of Table 2609.4 provided that they have a minimum fire separation distance of 4 feet (1220 mm).
  4. Roof coverings over terraces and patios in occupancies in Group R-3 shall be exempt from the area limitations of Table 2609.4 and shall be permitted with light-transmitting plastics.
TABLE 2609.4
AREA LIMITATIONS FOR LIGHT-TRANSMITTING PLASTIC ROOF PANELS
CLASS OF PLASTIC MAXIMUM AREA OF INDIVIDUAL ROOF PANELS (square feet) MAXIMUM AGGREGATE AREA OF ROOF PANELS (percent of floor area)
CC1 300 30
CC2 100 25
For SI: 1 square foot = 0.0929 m2.

Related Code Sections


Section 2609 Plastic, Light-Transmitting Plastic Roof Panels
Light-transmitting plastic roof panels shall comply with this section and Section 2606. Light-transmitting plastic roof panels shall not be installed ...
Building Code 2021 of Illinois > 26 Plastic > 2609 Light-Transmitting Plastic Roof Panels
Section 2609 Plastic, Light-Transmitting Plastic Roof Panels
Light-transmitting plastic roof panels shall comply with this section and Section 2606. Light-transmitting plastic roof panels shall not be installed ...
Building Code 2018 of Illinois > 26 Plastic > 2609 Light-Transmitting Plastic Roof Panels
2609.4 Plastic, Area Limitations
with light-transmitting plastics. TABLE 2609.4 AREA LIMITATIONS FOR LIGHT-TRANSMITTING PLASTIC ROOF PANELS CLASS OF PLASTIC MAXIMUM AREA ...
Building Code 2018 of Illinois > 26 Plastic > 2609 Light-Transmitting Plastic Roof Panels > 2609.4 Area Limitations
2609.3 Plastic, Location
Where exterior wall openings are required to be protected by Section 705.8, a roof panel shall not be installed within 6 feet (1829 mm ...
Building Code 2021 of Illinois > 26 Plastic > 2609 Light-Transmitting Plastic Roof Panels > 2609.3 Location
2609.3 Plastic, Location
Where exterior wall openings are required to be protected by Section 705.8, a roof panel shall not be installed within 6 feet (1829 mm ...
Building Code 2018 of Illinois > 26 Plastic > 2609 Light-Transmitting Plastic Roof Panels > 2609.3 Location
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