Roof Parapet Height Code

Perimeter of the parapet.

Roof parapet height code.

If a reinforced concrete beam is provided at the top of the wall the minimum height above the wall anchor may be 6 inches 152 mm. However when a roof slopes down toward an exterior wall and parapet with a slope greater than 2 12 further analysis is required to determine if a taller parapet is necessary. We offer railings that attach to the top of the parapet. If you can penetrate your roof parapet there are several roof parapet railing solutions.

The ontario building code parapet walls 9 20 6 5. 2015 ibc code commentary. E slopes 0 12 through 5 12 multiple unit roof coverings. 2 parapet walls shall be solid from the top of the parapet to not less than 300 mm below the adjacent roof level.

Parapet walls 1 the height of parapet walls above the adjacent roof surface shall be not more than three times the parapet wall thickness. Per asce 7 the mean roof height h is defined as the average of the roof eave height and the height to the highest point on the roof surface except that for roof angles of less than or equal to 10 the mean roof height is permitted to be taken as the roof eave height. Ibc guardrail height requirements. Buildings greater than 22 feet 6706 mm in height with roof slopes less than 2 4 units vertical in 12 units horizontal 20 percent slope shall be provided with a parapet railing fence or combination thereof not less than 42 inches 1067 mm in height.

However fall protection would still be required for work on roof top equipment design features at heights greater than 6 feet over the edge of the parapet on the face of the building and for work near unguarded roof openings and skylights. Install a non penetrating full height railing. Osha also requires a top rail at 42 above the working working surface but allows for some flexibility of 3 inches from the 42. If penetrating the outside of the wall is not an option a freestanding non penetrating railing can be used to keep people back to from the roof edge.

Employees shall be protected from falls from roofs that are of a height of more than 20 feet by the use of a roof jack system as provided in section 1724 a a minimum of 24 inch high parapet or other method affording equivalent protection. Parapet corrective work must be performed in conjunction with the installation of tension roof anchors. Including parapets of sufficient height is also advantageous when green features. Osha guardrail height requirements.