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// CODE SNIPPET

C404 Combined Construction Types

2020 FBC - Building, 7th edition > C Florida Standard for Mitigation of Radon in Existing Buildings > C4 Structural Sealing and HVAC System Balancing > C404 Combined Construction Types
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C404.1 Structural Chases

Openings which connect a crawlspace and the space between floor or ceiling joists, wall studs, or any other hollow chase adjoining conditioned space, that are sealed in order to reduce radon entry concentrations, shall be closed and sealed in accordance with the appropriate portions of this chapter.

C404.2 Wall Penetrations

Openings for electrical or plumbing connections in a wall between a crawlspace and a conditioned space, that are sealed in order to reduce radon entry, shall be closed and sealed with an approved caulk and/or gasket.

C404.3 Doors

When a door is located in a wall between a crawlspace and the conditioned space, it shall be fully weatherstripped or gasketed.

Related Code Sections


C404 Florida Standard for Mitigation of Radon in Existing Buildings, Combined Construction Types
Openings which connect a crawlspace and the space between floor or ceiling joists, wall studs, or any other hollow chase adjoining conditioned space ...
2017 FBC - Building, 6th edition > C Florida Standard for Mitigation of Radon in Existing Buildings > C404 Combined Construction Types
C404 Florida Standard for Mitigation of Radon in Existing Buildings, Combined Construction Types
Openings which connect a crawlspace and the space between floor or ceiling joists, wall studs, or any other hollow chase adjoining conditioned space ...
2020 FBC - Building, 7th edition > C Florida Standard for Mitigation of Radon in Existing Buildings > C4 Structural Sealing and HVAC System Balancing > C404 Combined Construction Types
E404 Florida Standard for Mitigation of Radon in Existing Buildings Effective: June 1, 1994, Combined Construction Types
Openings which connect a crawlspace and the space between floor or ceiling joists, wall studs, or any other hollow chase adjoining conditioned space ...
2020 FBC - Residential, 7th edition > E Florida Standard for Mitigation of Radon in Existing Buildings Effective: June 1, 1994 > E404 Combined Construction Types
E404.3 Florida Standard for Mitigation of Radon in Existing Buildings Effective: June 1, 1994, Doors
When a door is located in a wall between a crawl space and the conditioned space, it shall be fully weatherstripped or gasketed ...
2020 FBC - Residential, 7th edition > E Florida Standard for Mitigation of Radon in Existing Buildings Effective: June 1, 1994 > E404 Combined Construction Types > E404.3 Doors
C404.1 Florida Standard for Mitigation of Radon in Existing Buildings, Structural Chases
Openings which connect a crawlspace and the space between floor or ceiling joists, wall studs, or any other hollow chase adjoining conditioned space ...
2020 FBC - Building, 7th edition > C Florida Standard for Mitigation of Radon in Existing Buildings > C4 Structural Sealing and HVAC System Balancing > C404 Combined Construction Types > C404.1 Structural Chases
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