There are several good inorganic deck protections on the market ranging in price.
Roofing felt has been rained on for 4 days.
Will the trapped moisture below the shingles be ok.
If your roofing contractor suspects a storm is approaching expect a call postponing the project until the weather has passed.
Roofing felt that has gotten wet can be covered with shingles as long as it is allowed to dry out first the surface underneath did not get wet and it did not wrinkle bubble or rip.
Right now i have two concerns.
Robert harris 4u roofing founder and owner has been on a lot of roofs and not just with his own business.
Our osb is rated exposure 1 and that means that it will withstand normal delays in construction.
Certainly it would have been better to have covered the roof with a tarp or roofing felt before it rained.
When installed properly your new roof will last you ten years or more.
My contractor put all of the roofing felt on couple of days ago.
The origin of 4u roofing.
Osb like all other wood will expand.
They installed the shingles on half of the roof in the rain.
Normal delays and the rain you indicated will not affect the structural properties of the panels.
It is best to avoid rainy day installations.
Delaying a repair a few days for foul weather to pass is well worth the wait.
If your roofing company uses only inorganic roof deck protection and installs it correctly you won t have a problem with rippling.