Roof Access Ladders are a big help when there are multi-level roofs and it is not feasible to have interior access by way of a roof hatch to each portion of the roof. Using a standard loose ladder in this situation is risky for the user and for the integrity of the roof.
It is also helpful to have a permanent roof access from grade for one story buildings. But you may want to locate the ladder behind a fence, or inside a courtyard. The other solution is the lockable cover for the lower portion that you see on nearly every fast food restaurant. Grade-set roof access ladders to roofs over 20' above grade require a cage.
Anchorage of the ladder is fairly simple in masonry construction. Masonry veneer or EIFS construction requires structural angles anchored to studs to carry the weight. Ideally, make provisions in the anchorage of the ladder that allows the ladder to be installed after the wall is complete.
- This detail is suggested to specify the configuration, construction and materials required for the exterior roof access ladder(s).
- This detail can eliminate the need for specifications covering some of these conditions.
- These details are referenced on the elevations, wall sections, and/or roof plan.
- You may want a specification covering the quality and installation aspects of the ladders.
- These details should be placed on the Exterior Detail sheets, the A-500 series of sheets per the National CAD Standards, contrary to the designation shown here.
- Download PDF of detail.