September 2019

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Common Mistakes HANDRAIL, GUARDRAIL & SAFETY BARRIER INSTALLATIONS Christian King, General Manager at Kee Systems, points out some of the common mistakes made when installing safety systems. Not following the design calculation that provides the compliant upright tube specification, correct spacing between uprights, the required anchor embedment to achieve the required design load: Correct planning is vital, otherwise the barrier won’t achieve what it’s being designed to do, which is to protect people. For example, barriers, handrails and guardrails must meet minimum height requirements and be able to withstand various forms of load, as required under Building Regulations and BS6180. Pedestrian handrails need to be designed to achieve 740 Nm design load. If the system isn’t designed correctly, then you will find that the system does not withstand the correct loading. Correct design calculations can also help to save money, as you’ll be able to calculate the spacings accurately. We often find that systems are installed to what a company thinks is the safest specification, but in fact, they have often overcompensated on the spacing between uprights and as a result, the railing system has cost more. Don’t assume you know how to install the systems correctly and to a compliant standard: Safety barrier systems can be installed quickly and easily using fittings such as Kee Klamp, but you still need to know what you’re doing. Common mistakes can often be seen on stairs or ramps where the handrail may be below the required 900 – 1100mm height or the handrail has just been installed on one side of the stair or ramp instead of both sides as required. You can also find that where there is a drop off, a curb or curb rail has been omitted to prevent wheelchairs from slipping out from under the railing. In some cases, a mid-rail will provide sufficient protection. “If you are going to install a handrail, guardrail or safety barrier using components, always speak to a company that understands the complexities of installing these systems first” Wrong fixing detail used: We have seen cases where a base flange has been fixed to brickwork with non-suitable anchors or not cored, or where wall fixings have been used as base flanges. It won’t be long before these safety railings or handrails start to become unstable and either wobble or work loose from the brickwork or substrate it’s fixed to, making the system noncompliant and potentially a hazard. When fixing a pedestrian handrail to brickwork, we’d recommend using a 78mm diameter diamond core drill, 250mm deep for each upright and then resin fix the uprights into position to achieve the required strength and durability. Trying to save money by installing a galvanised DDA compliant system and then painting it instead of having it powder-coated: Painted systems will scratch or flake within weeks, if not days. Polyester powder coating the tube and components will provide a finish that’s chip, scratch and fade resistant and will also comply with the requirements of the Equality Act by providing a finish that’s not cold to the touch. General comment: The benefit of using tube and fittings is that if a system is incorrect, it may simply be a case of adjusting it or replacing a section, which you can’t do with fabricated systems. However, in all cases, we’d say that if you are going to install a handrail, guardrail or safety barrier using components, always speak to a company that understands the complexities of installing these systems first to make sure that what you are proposing is correct. Contact Kee Systems 0208 874 6566 www.keesystems.co.uk @KeeSystems 58 TC SEPTEMBER <strong>2019</strong>
Looking for safe rapid access on fragile roofs? Then get our Board-Walk system F or everyone settling for nothing but the best when it comes to performance and precision. Ideal for roofers. Looking for safe rapid access? The Easi-Dec Board-Walk system is an open mesh walkway which complies with EN 12811-1. The system allows access from the eaves to the ridge, whilst spreading the load onto the support battens to provide the user with a safer working position on fragile roof surfaces. Board-Walk is a modular system which features 2m, 3m and 4m sections that are easily linked together and, an integral length work positioning line. For further information visit our website at www.easi-dec.co.uk Hot air tool HG 2620 E • 2300 W / 50 – 700 °C / 150 – 500 l/min • Brushless motor: 10,000 h • Air pressure: 4,000 Pa for more power • Suitable for construction site use • LCD information display • 4 user-selectable programmes • Easy to operate by joystick • Heater and power cord easy to change • Including fine dust filter www.steinel-professional.de Call 01767 691812 or email info@easi-dec.com
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September 2019

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