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Wind Exposure

   

- For wind loads, the prefabricated tower scaffold has been calculated for a wind load of 0.1kN/m², in accordance with 

BS1139-6:2014. 

- This approximately equates to a working wind limit of 27 mph (43 kph / 12 meters per second). Above this limit, all 

work must stop and the prefabricated tower scaffold dismantled. 

- The weather forecast must be taken into account before use. 

- As part of the risk assessment, wind conditions must be taken into account and reviewed regularly, depending on the 

duration of the prefabricated tower scaffolds assembly on site. 

- Beware of high winds in exposed, gusty or medium breeze conditions. 

- Beware of open ended buildings, uncladded buildings and building corners, which can cause wind funnelling effects.

SAFETY FIRST

Tying In

    

Where shown on the corresponding scheme drawing, the prefabricated tower scaffold must be tied in to a suitable load 

bearing structure (i.e. building) to prevent overturning. Tie loads, where applicable, are specified on the corresponding 

scheme drawing. 

When used, select and install anchors in concrete and masonry must be selected and installed in accordance with BS 

8539. This prefabricated tower scaffold has been designed to be properly secured (when applicable) to a suitable 

adjacent supporting structure capable of withstanding the forces that will be imposed upon it by the attachment of the 

tower. Devices for securing the tower must be simultaneously rigid in both tension and compression and capable of 

withstanding and transmitting the loads imposed by the tower to the supporting structure.

Use of prefabricated tower scaffolds for access to adjacent structures

    

The tower must be built on base plates and properly secured to an adjacent supporting structure to prevent movement 

of the tower away from the structure at the point of access. 

There must be no gap between the platform of the prefabricated scaffold tower and the place being accessed through 

which a person, tools or materials could fall or partially fall or which could cause a person to trip.

The platform of the prefabricated scaffold tower and the surface onto which a person will step when accessing another 

place must be at the same level. Means of protection must be removed only for the time and to the extent necessary to 

gain access or egress or for the performance of a particular task and must be replaced as soon as practicable. The task 

must not be performed while means of protection are removed unless effective compensatory measures are in place.

Provision must be made to prevent falls - not only from the prefabricated tower scaffold, but also from the adjacent 

structure.

Handover of the prefabricated scaffold tower

 

If the prefabricated tower scaffold is to be assembled and left for a third-party to use on site, copies of this guide, the 

corresponding scheme drawing, standard tower user guide and the design certificate must also be left. The Handover 

Certificate (TDF-HC0001) shall be used as part of the handover from the assembler. Details required to complete this 

certificate are to be found on the scheme drawing.

In accordance with BS1139-6:2014, the “Conditions for Safe Use” information shall be affixed to the base of the 

prefabricated tower scaffold by means of the Scheme drawing and the Handover Certificate. They must be clearly 

visible so that end users are aware of the conditions of safe use. 

Wind Speed Table

FILE: S140105

Drawn: 29/01/2015

Page: 5 OF 14

Issue: A

LINKED PREFABRICATED TOWER SCAFFOLD - LADD 3T

FILE: S140105

Drawn: 29/01/2015

Page: 5 OF 14

Issue: A

BoSS IS A REGISTERED TRADEMARK OF YOUNGMAN GROUP LTD

© 

YOUNGMAN GROUP LTD - 29/01/2015  

FOR UP TO DATE INFORMATION ON THIS PRODUCT CHECK

www.youngmangroup.com/brands/BoSS-towers  

Summary of Contents for Boss Plus

Page 1: ...bricated tower scaffold system and should be used in conjunction with the appropriate corresponding BoSS scheme drawing EN1004 mobile access tower user guide and product datasheet BoSS IS A REGISTERED...

Page 2: ...14 Issue A FILE S140105 Drawn 29 01 2015 Page 2 OF 14 Issue A LINKED PREFABRICATED TOWER SCAFFOLD LADDERSPAN 3T BoSS IS A REGISTERED TRADEMARK OF YOUNGMAN GROUP LTD YOUNGMAN GROUP LTD 29 01 2015 FOR U...

Page 3: ...y Rated for External or Internal Use i e exposed to wind or not Maximum wind load Maximum foot load Tie loads where applicable Before each use Check that each prefabricated tower scaffold is complete...

Page 4: ...oved DURING Mobile tower structures shall be moved with the upmost caution Any stabilisers fitted must remain in position and raised no more than 25mm from the ground Prefabricated tower structures mu...

Page 5: ...the tower away from the structure at the point of access There must be no gap between the platform of the prefabricated scaffold tower and the place being accessed through which a person tools or mate...

Page 6: ...uipment are on site undamaged and that they are functioning correctly particularly the brace claw locking mechanism Damaged or incorrect components shall not be used Component weights can be found on...

Page 7: ...platfrom height tower starting with a 2 rung frame FILE S140105 Drawn 29 01 2015 Page 7 OF 14 Issue A LINKED PREFABRICATED TOWER SCAFFOLD LADDERSPAN 3T FILE S140105 Drawn 29 01 2015 Page 7 OF 14 Issu...

Page 8: ...opriate corresponding scheme drawing FILE S140105 Drawn 29 01 2015 Page 8 OF 14 Issue A LINKED PREFABRICATED TOWER SCAFFOLD LADDERSPAN 3T FILE S140105 Drawn 29 01 2015 Page 8 OF 14 Issue A BoSS IS A R...

Page 9: ...s open inwards as indicated with arrows Ensure all interlock clips are engaged 4 Fit Diagonal Braces between 13th and 15th rungs as shown FILE S140105 Drawn 29 01 2015 Page 9 OF 14 Issue A LINKED PREF...

Page 10: ...of the frames Ensure all wind locks are engaged FILE S140105 Drawn 29 01 2015 Page 10 OF 14 Issue A LINKED PREFABRICATED TOWER SCAFFOLD LADDERSPAN 3T FILE S140105 Drawn 29 01 2015 Page 10 OF 14 Issue...

Page 11: ...guardrailed 8 Fit Horizontal Braces to link the towers as shown FILE S140105 Drawn 29 01 2015 Page 11 OF 14 Issue A FILE S140105 Drawn 29 01 2015 Page 11 OF 14 Issue A BoSS IS A REGISTERED TRADEMARK...

Page 12: ...BoSS Infinity Multipurpose frames Move Stabilisers so that they are parallel to frames The build is now complete To dismantle the tower Simply follow the assembly steps in reverse ensuring that the 3T...

Page 13: ...forms located and wind locks engaged Interlock clips engaged Toe boards located Check guardrails are fitted correctly positively locked Tower use information and handover certificate in place FILE S14...

Page 14: ......

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