One of the roofing pros we spoke with says mist won t affect osb any more than the humidity that osb absorbs on a hot day.
Roofing in the rain ok.
Installing a roof in the rain may void your warranty roofing manufacturers guarantee their products but not the installation.
Safety is always a primary consideration for roofers and roofing in the rain requires caution.
It is not the fault of your contractor and while the delays can certainly be frustrating a contractor who attempts to install a new roof in the rain is going to be compromising the overall integrity of the installation.
Summer sun and high heat make working in a little rain a viable option.
For you as a homeowner the contents of your home are a priority.
Shingles will not stick to a wet roof.
If it starts to rain or drizzle the roofers should act quickly to cover your osb most likely with a tarp.
Specific guidelines are set for how shingles and materials should be installed so the manufacturer is not liable for damage that results from faulty workmanship.