The three methods to create an anchor point stated below all require the use of a throwing line for the installation of the anchor point.
Roof anchor spacing.
For activities near the framed wall top plate.
Roof anchors should be installed at 8 foot spacings along the roof ridge.
Both permanent and temporary roof anchor points are available.
For anchoring between interior building framing or a window opening.
An anchor point should be able to hold a force of 10 kn for as long as 3 minutes.
For use around structural.
Doorway and window opening clamp.
For workers on standing seam metal roofs.
This is the only situation in which this configuration is acceptable.
The roof material must be capable of supporting a minimum tensile load of 5 000 lbs.
Anchor points are usually installed on the roof and are used to connect lanyards lifelines and other forms of tie off which prevent a worker from falling.
In general roof anchors should be installed on roofs or structures that are made of wood and sheathing.
Also a suitable safety hook should be used to attach the rope to the anchor point.
For example as a roof is being constructed each new piece of roof decking that is installed becomes the new edge.
Maximum roof width for roofing work.
This anchor clamps onto parallel seams.
If the material is not able to support 5 000 lbs.
Standing seam metal roof anchor.
Minimum tensile load a qualified person must confirm that the support structure maintains a safety factor.
During roofing work if your roof is no more than 50 in width you may utilize a safety monitor without a warning line.
Roof anchors can be as simple as a d ring connection or as complex as a complete lifeline system.