Minimum Parapet Height Flat Roof Uk

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.

Minimum parapet height flat roof uk.

Find out more about modular handrail for parapets. The minimum height of a parapet wall above the roof surface is 30 inches. If you can penetrate your roof parapet there are several roof parapet railing solutions. See how the non penetrating roof handrail works.

The minimum thickness and maximum height of parapet walls should be as indicated in the diagram below. Normally 1 80 0 72 is the recommended minimum angle for a slope and this is universal across the vast majority of flat roofing systems regardless of the materials that they incorporate. We offer railings that attach to the top of the parapet. The loading criteria is taken from bs 6399 part 1 1996 and requires the guardrail to withstand a uniformly distributed load of 0 74kn per metre and a point load of 0 5kn.

The uk building regulations part k requires a guardrail to consist of a minimum two horizontal rails with a minimum height of 1100mm. Which would include abutments rooflights. 2015 ibc code commentary. The design of drainage falls should ensure that the continuity of the waterproof covering is maintained for a vertical height of 150mm above the finished roof level at all abutments door openings and parapets.

If penetrating the outside wall or parapet wall is not an option a freestanding non penetrating guardrail can be used to keep people back from the roof edge. Datum is defined as any level surface used as a reference in measuring elevations. In order to achieve this drop a slightly steeper angle of 1 40 1 44 should be the aim when installing a flat roof as this accounts for surface. Install a non penetrating full height railing.

If the criteria indicated below cannot be attained design calculations should be submitted to indicate suitability. British standard bs 6229 2003 flat roofs with continuously supported coverings section 7 page 12 requires that. Install a non penetrating full height guardrail. Type a cavity wall.