Installing a roof in the rain may void your warranty roofing manufacturers guarantee their products but not the installation.
Roofing in the rain ok.
But it probably wouldn t come as any surprise to know that roofers find working in cooler temperatures a perk.
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.
If it starts to rain or drizzle the roofers should act quickly to cover your osb most likely with a tarp.
Safety is always a primary consideration for roofers and roofing in the rain requires caution.
Roofing in the rain not only means you or your roofing experts will be extremely wet uncomfortable and exposed to more risk but it also means that your new roof could have less integrity than if it were installed in dry conditions.
Shingles will not stick to a wet roof.
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.
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.