Smoking on a building site

[Compostella]

If you are a bricklayer and building a something, at what stage does it become illegal to smoke in it?

[daffy654]

http://www.smokefreeengland.co.uk/what-do-i-do /business.html#places

"The new smokefree law applies to virtually all 'enclosed' and 'substantially enclosed' public places and workplaces. This includes both permanent structures and temporary ones such as tents and marquees. This also means that indoor smoking rooms in public places and workplaces are no longer allowed.

Premises are considered 'enclosed' if they have a ceiling or roof and (except for doors, windows or passageways) are wholly enclosed either on a permanent or temporary basis."

[fredpuli47]

Which explains why our village bus shelter has to have a legal 'no smoking' sign, just in case anyone is deceived by it being open to all weathers by courtesy of the local vandals :)