If damaged shingles or underlayment are allowing rain to seep into the attic or walls it could cause mold mildew and other damage.
Roofing in the rain.
If the sheathing or wood is wet during the time of installation it can trap moisture inside of your roof leading to mold rot or other severe problems.
This can lead to mold rot and a host of other costly repair problems for your roof.
Having a new roofing system installed during the rain puts the new roof at the risk of failing.
In fact rain can give a roofer a chance to see if the water is draining effectively or pooling in sections that could point to a problem.
Working in the rain requires a measured approach.
How do roofers work in the rain.
A wet roofing deck can grow mold and mildew which could cause the wood to change shape or rot leading to failure of your new roof.
But if you don t address the issues as soon as possible the damage will continue to grow.
If large areas of the roof are being repaired the areas that still need repair can be tarped.
Always err on the side of caution with this sort of thing.
Shingles and roofing materials may not adhere properly to slick surfaces with high humidity.
Droplets from rain condensation dew or even high humidity could all cause roofing materials to swell or wrinkle leading to buckled rippled or misshapen roofs.
This is because your shingles and roofing materials may not properly adhere to the wet surfaces and continuing the installation can trap moisture in you roof.
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.
If it starts to rain or drizzle the roofers should act quickly to cover your osb most likely with a tarp.
A wet installation can also cause a new roof to fail.
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.
Roofing during rain is dangerous especially if you aren t an expert.