Protects your roof

This freestanding deadweight anchor will keep the waterproof membrane of your roof intact as it does not need to attach to any surface point.

Code Expertise

Rigurously tested

Designed by fall protection specialists, the system complies with Class E EN 795, BS 7883 & ISO 14567. CE Approved to PPE Directive. Independently tested.


Use it for decades

Made of industrial strength components, Weightanka can be used both indoors and outdoors and withstands even the harshest conditions, ensuring user safety at all times.


Install in 15 mins

There is no need for specialist tools when installing our deadweight anchor system: one person can put the modular anchor together within 15 minutes with the use of an Allen key and bar.

More than 1000 anchor points installed globally in 2020

Toyota Company NASA DOW Nestle Exxon Canon AMGEN Pepsi

A deadweight anchor system
for safe roof access

Our Weightanka freestanding anchor allows you to safely undertake maintenance or servicing tasks on a flat roof, significantly reducing the risks of falling. The system is quick and easy to install and is suitable for up to 2 people working in fall restraint.

Designed to keep you safe & sound

Made of sturdy materials that will not rust in poor weather, Weightanka helps users access potentially hazardous parts of the roof that require servicing or maintenance. Features:

  • Raised central pedestal which reduces the distance of travel during a fall arrest event
  • Over 100 suction cups that are moulded into each rubber bonded weight to maximise grip
  • Designed for use on roofs with up to a 5 degree pitch.

freestanding roof anchor

Completely freestanding

This anchor system will not penetrate or puncture your roof, giving you peace of mind that the surface won't be damaged.

Weightanka uses base layer weights that are fully encased in rubber moulding, making it as gentle as possible for the roof membrane.

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.

It is best practice to use Weightanka in fall restraint. The system 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. No part of the Weightanka should be placed closer than 2.5m from the nearest roof edge.

man anchor for 2 people
installing weightanka

Easy to install and move around

Installation is quick and easy! An Allen key and bar are the only tools needed. Weightanka can be assembled by a single worker.

The system is also easy to deconstruct and reinstall where needed. A single standard weight is made of galvanised steel and weighs 25 kg, which makes it possible for the entire structure to be moved around as required.

Industry compliant

All our systems go through rigorous testing for ensured safety.


  • Conforms to CLASS E EN 795, BS 7883 & ISO 14567
  • Is CE Approved to PPE Directive
  • Has been independently tested at N.E.L. (National Engineering Laboratory, East Kilbride, N.B. 0320)
  • Is galvanised to BS EN ISO 1461

dead weight anchor system
galvanised steel anchor system

Incredibly durable

Weightanka uses industrial strength components to ensure durability. Predominantly made of galvanised steel, the structure is designed to be left on the roof permanently, even in harsh weather conditions.

As with any fall protection solution, just ensure that the system is inspected periodically so that you can safely enjoy the benefits of the system for years to come.



Get a system overview, read about Weightanka's compliance to standards, see components and details on recertification in our brochure.

Examples of use

Weightanka can be used on its own, allowing users to safely undertake maintenance or servicing tasks on a flat roof, significantly reducing the risks of falling. But it can also be used in conjunction with specifically designed systems to help users keep safe while working on a roof at all times:

Multiple Weightanka units can be configured to create a freestanding, temporary lifeline system (Wireanka). This solution is perfect for temporary maintenance work. This removes the need to install a permanent lifeline system. Wireanka is quick and easy to put together and dismantle.

Find our more about Wireanka, our freestanding lifeline system

A Weightanka unit can also be used together with our anchor device for rope access workers. Used this way, workers can access the sides of buildings safely and quickly. Our rope access system is called Accessanka and, just like Weihtanka, can easily be put together and dismantled by a single worker.

Find our more about Accessanka, our rope access anchor

See how our deadweight anchor works

Weightanka uses incredibly sturdy components
to ensure safety at all times

freestanding deadweight anchor
Freestanding weights with non-slip rubber to help protect the roof.
A standard weight is made of galvanised steel and weighs 25kg.
The anchor point is quick and easy to install
The fall protection system is ideal for short-term use on flat roofs.
We recommend using Weightanka in fall restraint with appropriate PPE.
Weightanka can be used as a temporary or permanent roof system, depending on your needs.

Frequently asked questions

Can Weightanka be left permanently on the roof?

Yes. The system can be used as both a permanent or temporary fall protection system. Made of mainly galvanised steel, it can withstand even the harshest weather and, with appropriate maintenance, will last decades.

What is the weight of a fully assembled Weightanka system?

A fully assembled standard Weightanka system weighs around 250kg.

What is the weight of the heaviest component?

The heaviest Weightanka components are the freestanding weights. Each weight is around 25kg.

How many people can use Weightanka at the same time?

Weightanka is designed for use by 1 person (in either fall arrest or restraint), but can be configured to allow for 2 people (both in fall restraint).

What is the lifespan of a Weightanka system?

With appropriate maintenance, the system can last several decades. If for any reason one of the components gets damaged and needs replacing, the component can be replaced, without the need to replace the entire system. This makes Weightanka cost-effective.

How many people are needed to install the system?

Weightanka can be installed by a single person.

What types of roofs can Weightanka be installed on?

Weightanka is suited for flat roofs (with up to a 5 degree pitch). It is suitable for the following types: asphalt, mineral felt and concrete. If your roof is made of a different material, please get in touch with our team and we will advise you on its suitability for your particular layout.

What PPE do I need when using Weightanka?

The 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.

What standards is Weightanka compliant with?

The system meets the following standards and regulations: Class E of BS EN 795, BS7883, Construction (Design & Management) Regulations, Work at Height Regulations, Construction (Health, Safety & Welfare) Regulations, Workplace (Health, Safety & Welfare) Regulations, Manual Handling Operations Regulations.

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