D-marc™ 105
Application

D-marc™ 105 provides a demarcation system for flat rooftops. Applications may be for the purpose of preventing access to hazards during regular rooftop maintenance or to provide safe access across the roof. It has been wind tunnel tested on single ply, bituminous and concrete roof surfaces.

Description

Demarcation system which can withstand wind speeds of up to 105 mph due to the unique design of its base and upright which also eliminates any potential damage caused by oscillating.

The lattice structure of the upright ensures the wind circulates around and through the system rather than pushing it over. Its three connecting pins do not protrude through the base and therefore do not come into contact with the roof structure, ensuring it cannot damage the roof even if it begins to oscillate. It has a non-protruding integral hook incorporated inside the lattice structure which ensures the chain cannot lift off the upright in high winds.

The trapezoid base shape is aerodynamically designed with four pyramidal sloped sides at 30°, which, in extensive wind tunnel testing was shown to be the most stable shape. The underside of the base is sculpted ensuring the weight is distributed to its perimeter, minimising the effect of wind uplift.

D-marc™ 105 is classed as a form of Collective Protection in accordance with the HSE’s hierarchy of risk management as set out within the Working at Height Regulations 2005 (WAHR).

Components:

  • Bases.
  • Uprights.
  • Chains and connecting links.

Applications:

D-marc™ 105 provides a demarcation system for flat rooftops. Applications may be for the purpose of preventing access to hazards during regular rooftop maintenance or to provide safe access across the roof. It has been wind tunnel tested on single ply, bituminous and concrete roof surfaces.

General information

Material

Base: Manufactured from recycled tyres, complying with BS 4790 for flammability, BS 1006 for UV stability and BS 7188 for slip resistance

Upright: Manufactured from stainless steel grade 1.4301 (304). The powder coating process not only enhances lifespan, it gives a quality finish to the product

Plastic chain and connecting links: Fully weatherproof, resistant to salt, chemicals and frost. They are also colour-fast, anti-magnetic and can be used within a temperature range of -10 to +75ºC

Size

Base: 500 x 500 x 72 mm (l x w x h)

Upright: 960 mm high

Chain: 25 m lengths

Installed height: 950 mm

Uniclass 2015

Ss_25_14_67_70 Rope or chain fencing systemsPrimary

CAWS

L35/170 Guarding system

Specification data - Rope or chain fencing systems

Product Reference

D-marc™ 105

Design

As drawing

Insert reference.

Standard product features

Material:

  • Base: Manufactured from recycled tyres, complying with BS 4790 for flammability, BS 1006 for UV stability and BS 7188 for slip resistance.
  • Upright: Manufactured from stainless steel grade 1.4301 (304). The powder coating process not only enhances lifespan, it gives a quality finish to the product.
  • Plastic chain and connecting links: Fully weatherproof, resistant to salt, chemicals and frost. They are also colour-fast, anti-magnetic and can be used within a temperature range of -10 to +75ºC.

Size:

  • Base: 500 x 500 x 72 mm (l x w x h).
  • Upright: 960 mm high.
  • Chain: 25 m lengths.
  • Installed height: 950 mm.

Product Options

Minimum distance from fall hazard:

2 m.

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