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.
Roofing in the rain.
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 damaged shingles or underlayment are allowing rain to seep into the attic or walls it could cause mold mildew and other damage.
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.
How do roofers work in the rain.
Always err on the side of caution with this sort of thing.
Roofing during rain is dangerous especially if you aren t an expert.
But if you don t address the issues as soon as possible the damage will continue to grow.
One of the first things we do during inclement weather is to make sure extra safety precautions are taken at the job site.
You might have seen some roofers who are happy to work in the rain but these will either be taking risks they shouldn t or will have specific knowledge and experience to get the job done safely.
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.
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.
Shingles may not properly adhere to wet surfaces.
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.
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.
Having a new roofing system installed during the rain puts the new roof at the risk of failing.
If large areas of the roof are being repaired the areas that still need repair can be tarped.
Working in the rain requires a measured approach.