is it really an alternative? i'd rather do a 4 hour night shift without breaks than working 8 hours like this in the heat. what am i supposed to do with a 45 minute break? if i am a bricklayer or example, i'd still be stuck on a badly cooled construction site. seems totally not worth it to me. even worse considering that normally breaks are not paid.
if we assume that this is the middle of the day, so i work 2 hours normally, then 4 hours with 45 minute breaks and then another 2 hours normally, i might as well just work 2.5hours normally, take a 3 hour break and then work another 2.5 hours normally.
so no, really, i don't see any benefit in that arrangement.
normally breaks are not paid? in the us maybe