Weightanka mobile man anchor
A dead weight anchor system for up to 2 users


Does not penetrate the roof membrane


Suitable for various roof types

Flat roof

Can be used on roofs up to 5° pitch


CE Approved to PPE Directive


Conforms to CLASS E EN 795, BS 7883 & ISO 14567

See how Weightanka works

Weightanka is a non-penetrating, portable, deadweight anchor system designed for use on roofs with up to a 5 degree pitch. The system is very quick and easy to assemble and is suitable for up to 2 people working in fall restraint.

Weightanka weighs only 250 kg and uses individual, smaller components, with no single item weighting more than 25 kg. Its base layers are rubber moulded, preventing the pads from peeling at the edges.


Rubber coated base weights provide the maximum friction with the roof membrane.
A single standard weight is made of galvanised steel and weighs 25 kg.
Galvanised steel cross arms give the system stability and define the system shape.
The unit is ideal for short term maintenance operations to flat roofs or to the plant and equipment installed at roof level.
It is best practice to use Weightanka in fall restraint. Weightanka has been designed to be used with an approved shock absorbing rope grab and rope and full body harness to provide safe access at all times.
Weightanka can be used as a temporary system or can be left on the roof of a building permanently.



Get a system overview, see components and learn how to install Weightanka in our brochure.


Easy assembly
Easy assembly
Installation is quick and easy! An Allen key and bar are the only tools needed! No special tools or labour needed. Weightanka can be assembled by a single worker.
Supports multiple workers
Supports multiple workers
Weightanka protects your people. It can be used as an anchor for one worker in arrest or two workers in restraint*. This means that it can safely arrest a falling worker, but can also be used to restrain two workers from reaching the edge when properly tethered.
Protects your roof
Protects your roof
The system is designed to protect your roof. A rubber coating encases each weight, making Weightanka a safe system for your roof.

More on Weightanka

  • Does not penetrate the roof surface
  • Base layer weights fully encased in rubber moulding
  • Raised central pedestal reduces the distance of travel during a fall arrest event
  • Galvanised to BS EN ISO 1461
  • Independently tested at N.E.L. (National Engineering Laboratory, East Kilbride, N.B. 0320).
  • Over 100 suction cups molded into each rubber bonded weight to maximize grip
  • No part of the Weightanka® should be placed closer than 2.5m from the nearest roof edge.
Dead weight Anchor

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