THERMAL ENVIRONMENT – WEATHER

In so far as the nature of the work permits, the degree of temperature
and humidity of ambient temperature and humidity of the work
premises must not lead to discomfort or risk to the health of the
workers.
Appropriate measures are taken whenever there are sources of heat or
other causes likely to modify the temperature and humidity of the work
premises to bring them within acceptable limits.
Workers subject to extremes of temperature and humidity shall be
allowed time off from work.
Persons working outdoors shall be provided with weather protection
equipment.
Site guards shall be provided with suitable shelter. The same applies to
guards assigned to night watch on open sites.