A roof repair or even replacement can be done when it is raining.
Rain during roof replacement.
And if your house is only covered in tar paper i would inspect it as well thoroughly.
A wet installation can also cause a new roof to fail.
When the rain looks likely or with the rain which keeps starting and stopping we usually work on small parts of the roof at a time we only tear off and replace each area at a time.
The exception would be a flat roofed structure.
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.
With rain that keeps stopping and starting roofers can work on smaller parts of roofs at a time only tearing off and replacing each part at a time.
While the completed shingles may not be in place during an unpredicted rainstorm there should be a protective layer on your roof that keeps rain from getting in.
During a roof installation there are several steps to ensure that your home s interior is never exposed.
It s best to stay inside and wait out the storm and take precautions when assessing damage or wait for a professional to arrive.
On the other hand any rotten shingles or other holes in the structure that were present before the storm will usually be denied because they are considered preventable.
During extreme weather or if there s severe damage the most important thing is to stay safe.
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.
Safety is always a primary consideration for roofers and roofing in the rain requires caution.
Shingles and roofing materials may not adhere properly to slick surfaces with high humidity.
If your roof has tar paper on it waiting for shingles and water is coming in your garage that s a failed installation imo.
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.
That doesn t mean that an unexpected rain or drizzle as you indicated won t occur during the roof replacement.
Rain can also help roofers inspect drainage issues and see where the water is flowing.
As far as how much damage can be done that depends on what the water hits.
Be wary of a roofing contractor who promises to install a new roof regardless of the weather.
Working on one part at a time makes your roof to stay intact effectively all through the entire work.
If you need a roof replacement or repairs even in the rain don t hesitate to call.
As a result fewer roofs will be open to the rain damage.
But it probably wouldn t come as any surprise to know that roofers find working in cooler temperatures a perk.