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RoofSafe Anchors - PVC Membrane Roof

Supplier: Abseilers United

Roof work can be a hazardous and high risk activity.

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Working safely at heights
The risks can be mitigated and effectively controlled by using a fall protection system in conjunction with management controls and training.

Uniline Safety Systems are experts in their field and provide sound advice to assist you in making a well informed safety decision that will reduce the chances of avoidable workplace accidents.

How it works
Uniline’s technically superior RoofSafe Anchors permit many metal decks, plywood and concrete roof constructions to be used as structural anchors, by limiting the forces that are generated in the event of a fall to less than 10kN (2,250lbs) through a built in energy absorber.

Built in energy absorbing elements are particularly beneficial in 'top fix' safety anchors as they enable energy to be absorbed throughout the entire fall protection system. This is especially important in short systems and systems with corners, as loads in these cases can be very high and beyond the tolerance of the roof system. Roof anchors which do not incorporate energy absorbing elements, have limited use as anchor devices on metal roof systems.

The reaction of the RoofSafe Anchor in the event of a fall re-orientates the load to a more beneficial plane for the roof structure, before deployment of the energy absorber reduces the fall energy and distributes load through the fixings, ensuring the safe arrest of the worker, or workers.

Anchor installation
The anchor can be fitted to metal decking, plywood or concrete roof constructions from the top of the roof using M8 toggle clamps, mechanical fixings or stud, provided with anti-compression spacers. The length of the toggle bolt can be increased to allow for use in constructions with deep insulation. The number and size of the toggle clamps/stud have been calculated to counter the overturning moment applied by the anchor in the first stage of activation and resist the shear load in the second stage of activation when the energy absorber deploys. When using stud and chemical resin to secure the anchor, it is important to follow the manufacturers specification and installation guidance.

Structural validation
RoofSafe Anchors can only be installed on roof systems that have been validated as capable of supporting the distributed loads applied in the event of a fall. Uniline offer alternative solutions for roofs which are not suitable. This predictable distributed load can be used to validate the roof systems suitability for use as a structural anchor. In the case of built up flat roofing systems, the distributed load can vary depending upon the depth of the insulation and can range from 0.5kN/sq.m (10lbs/sq.ft) to 4.0kN/sq.m (84lbs/sq.ft) where insulation is 300mm (0.98ft) deep.

Anchor construction
Anchors are constructed from mild steel and have a protective corrosion resistant coating. The roof membrane can be bonded directly to the base plates and casing thereby providing a neat waterproofing detail, or alternatively, for Mineral Felt Roofs, Uniline can provide a pre-engineered weather proofing detail to simplify the waterproofing process and ensure the anchor has long term resistance to water ingress.

Only approved waterproofing details should be used and detailing work must be carried out by an authorised roofing contractor. Base plates are completely flat to make sealing easier and have recessed fixing points to protect the roof membrane from becoming damaged. Very importantly, no elements of the anchor are exposed to the environment after installation, ensuring long-term corrosion resistance and anchor performance.

Green roof systems
Use of Uniline’s pre-engineered weather proofing detail enables the anchor to be used in conjunction with Green Roofing Systems. The sedum element of the roof construction can be installed around the anchor without any fear of water penetration through the sealing detail.

System design parameters
RoofSafe Anchors can be used with RoofSafe Cable systems to provide cost effective and functional safety access solutions.

Design requirements for the anchors are:
RoofSafe Cable: 12m (39.37ft) maximum span (systems less than 12m (39.37ft) must have at least one intermediate anchor).

RoofSafe Cable provides continuous hands free access for the user of the system. System designs must be calculated using Uniline for Windows software in order to ensure that the proposed layout can support the number of workers intended to use the system in the future. Furthermore the software will advise on the ground clearance required beneath the work area in order to safely arrest a fall. Uniline provide technical drawings and specification details to help Architects and Building Safety Engineer’s with the inclusion of its products in building specification documents and tenders, no matter how complex your requirements may appear. Local design support can be provided by our network of System Integration Specialists.

Performance tested
RoofSafe Anchors are tested to exceed the standards of EN795, are CE marked and come with a 10 Year Guarantee for performance and corrosion resistance. (Subject to terms and conditions). For your peace of mind Uniline operates an ongoing policy of testing on ‘as built’ roof constructions and has
achieved approvals from many manufacturers of roof systems.

System integration
RoofSafe Anchors and Cable systems should only be designed and fitted by companies and personnel authorised and trained to do so. Uniline operates a training programme for its installation personnel to ensure competence. Installation technicians carry a competence record showing that they have been trained in the correct installation techniques required for our products.

Uniline operates this system for your peace of mind and the safety of the people that will use our products in the future. It is an integral part of our ISO9001:2000 quality system and ensures high standards are maintained.

For RoofSafe Anchors - PVC Membrane Roof, please click here.

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