Rank: Forum user 
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Can anybody tell me if there is a maximum wind speed limit for people working at height? I know section 4(3) of the Working at Height Regulations state that:
"Every employer shall ensure that work at height is carried out only when the weather conditions do not jeopardise the health or safety of persons involved in the work"
Is there any guidelines that go further into this that state a maximum wind speed?
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Rank: Forum user
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It depends on the activity:
HSG33 health & safety in roof work has some guidelines
MEWPs, spiders & cradles have maximum wind speed values defined by manufacturer
Rope access: IRATA guidelines & IRATA level 3 with the right experience in the environment you are working in are your best sources of information
Scaffold cannot remember without looking but I am sure someone else on forum can give you pointers
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Rank: Super forum user 
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National Federation of Roofing Contractors Guidance is IMHO a useful and definitive guide.
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Rank: Super forum user 
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The safety of work will also depend on the activity. Handling large roofing sheets is a very different proposition to changing a street lamp.
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Rank: Super forum user
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BernDaley wrote:
Scaffold cannot remember without looking but I am sure someone else on forum can give you pointers
Manufacturers who make Aluminium Towers and are part of PASMA recommend the maximum wind speed for working on a free standing tower to be 17mph. If it is forecast to reach 25mph, the tower needs tying in to a frigid structure. If the wind is forecast to reach 40mph, the tower should be dismantled.
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Rank: Super forum user
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As with others on here today the high winds were a topic of discussion for me, and discussions included the 'suction' properties of wind; wind causes a lowering of air pressure and can suck enclosed scaffolding away from a structure (hence the need for secure ties) and also a person walking in a part-constructed building or an enclosed scaffold can be sucked out by the reduction in air pressure outside.
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Rank: Super forum user
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Bit a red herring in my opinion to just look at a maximum wind speed. Too many variables, including how gusty it is, areas that channel wind, type of work carried out etc.
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Rank: Super forum user
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frankc wrote:BernDaley wrote:
Scaffold cannot remember without looking but I am sure someone else on forum can give you pointers
Manufacturers who make Aluminium Towers and are part of PASMA recommend the maximum wind speed for working on a free standing tower to be 17mph. If it is forecast to reach 25mph, the tower needs tying in to a frigid structure. If the wind is forecast to reach 40mph, the tower should be dismantled.
For anyone who wondered what a FRIGID structure is, it's a cross between FIXED & RIGID. ;-)
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