Some work such as scaffolding absolutely cannot be done in the rain for safety reasons, other work such as concreting well you just have to push through. If using labour hire providers in their clauses there is often a charge rate hidden in the contract somewhere for their personnel working in inclement weather (rain). The going rate is about $50 an hour on top of the regular hourly charge rate. A building company owner I know was unaware of the addition charge until he got invoiced with $1575 just for inclement weather in a one month period, he subsequently trained up one of his labourers for the role and got rid of the labour hire employee.
The lesson here is that you need to make sure that whoever you use to supply personnel, you are made aware of the total costs including hidden costs such as inclement weather, crib allowance, overtime etc. The regular charge out rate doesn't mean much when its just a portion of the total costs. At Crane & Rigging we provide a flat all inclusive hourly rate to take the complexity out of estimating your labour costs, its just one of the ways we do things to make it easy and straighfo