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.
Is it ok to shingle a wet roof.
Shingles will not stick to a wet roof.
Generally plywood roof decking that has gotten wet and had the shingles applied over it if allowed to dry.
A roof repair or even replacement can be done when it is raining.
If the roof does get wet wait until the roof is entirely dry to begin or resume work.
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.
The felt if it is wet when the shingles are applied will invariably bulge and crease if not outright tear under the workers feet or bulge crease just by being wet in many cases which can also reflect through to the shingle surface as bulges and waves.
Doing so goes against the building codes in most communities and the shingles won t adhere.
You risk ruining the integrity of your new roof.
If the risk of rain is too great they ll likely tarp the roof to keep it safe and dry and return to the job when the weather conditions are better.
Over the years they.
Roofing felt applied over a wet roof deck or shingles applied over wet roofing felt traps a layer of moisture within the roof.
This moisture can lead to mold and mildew forming underneath the shingles.
Roof replacement is expensive.
Be wary of a roofing contractor who promises to install a new roof regardless of the weather.
This shortens the effective life of the shingles and can adversely affect the roof sheathing.
Shingle roofs are installed every day over wood decking that has been wet by rain.
Shingles may not properly adhere to wet surfaces.
Safety is always a primary consideration for roofers and roofing in the rain requires caution.
The exception would be a flat roofed structure.
A wet installation can also cause a new roof to fail.
Newly installed roofing materials need to be 100 dry in order to seal properly.
You might be surprised to find that the answer is yes.