Why isn’t water damage from rain a big concern when new homes and buildings are under construction?

Question

Why isn’t water damage from rain a big concern when new homes and buildings are under construction?

In: Engineering

Answer 1

Short exposure to water isn’t a problem. It’s long-term exposure that allows decomposers (primarily various forms of fungus, like mold & mildew) to gain a hold.

So builders generally try to avoid the wettest weather, but if wet weather has been unavoidable then one of the first things done after there is a roof and walls on the building is to put commercial dehumidifiers inside and dry out the buildings interiors.