Portable Single Point Anchors

Design Considerations

The use of weighted base single point anchors will subject your roof to a 700 lb load in a concentrated area. For this reason, it is imperative to ensure that the structural integrity of the roof sound. Weighted base single point anchors are not recommended for pitches in excess of 5 degrees. Portable single point anchors for construction applications are mechanically attached, requiring no drilling of concrete or structural steel. Non-engineered single point anchors must be rated rated at 5,000 for one user or 10,000lbs for two users. Engineered systems must be designed for 2 times the applied load in the event of a fall by a qualified person. A single point anchor may be designed for single or dual tie-off as long as each user attaches to a designated D-Ring. Multiple users should never tie off to the same D-Ring under any circumstances. Special care must be taken to train personnel in the proper use of single point anchors. An SPA is designed to protect workers within a 30 degree conical cone; moving outside the intended coverage area increases the likelihood of coming into contact with structure below the work area in the event of a swing fall.