What if it rains when laying your roof felt? Is it ideal to continue with the installation process? Before you start your installment process, one factor you should consider is the weather forecast.

If it is likely to rain, you should put the project on hold. 

You can do some tasks while it’s raining slightly, but many could cause problems that would cost you more to fix. So, take a ride with me if you want to find out what you should do if it rains while installing your roof.

You cannot lay your roofing felt while it is raining because it is dangerous and poses many risks. So, a professional roofer would not work on your roof while raining because rains make it difficult for sealants to seal appropriately. Therefore, you are advised to stop your roofing project and wait until favorable weather conditions before laying your roof felt.

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Can You Put Roofing Felt In The Rain?

Lay Roofing Felt In The Rain

Different factors like quality of materials, timelines, etc., can be put under control when installing the roofing felt. The only unpredictable and uncontrollable factor is the weather condition.

It could rain at any time and disrupt your roof installment. The time needed to install a roof is a few days, but you can do some roofing projects daily.

Professional roofers would prefer waiting till the weather is clear before laying your roofing felt. You should not put roofing felt in the rain because it can reduce the longevity of your roof.

In addition, the water will damage the roof decking. However, if it is raining slightly, roofers can cover themselves with a waterproof jacket and continue their jobs, but in case of a heavy downpour, the roof will have to be covered to reduce the risk of falling off the top.

The best thing to do is stop working and wait for the rain to stop. Here are some reasons roofing felt shouldn’t be laid in the rain:

#1. It Is Extremely Hazardous

Installing a roof is a dangerous job, even with ideal weather conditions. When it rains during the installment process, the roof becomes slippery, increasing the chances of slipping and falling off.

In addition, the equipment used becomes challenging to move around with and could cause injuries if not handled properly. This is You should avoid one reason working while it’s raining.

#2. It Reduces The Quality Of The Roof

If the roof is being installed in the rain, the roofer’s attention would be quickly getting the job done. Due to this, mistakes would be made and cause future problems.

#3. It Causes Poor Visibility

Working in the rain is dangerous due to poor visibility. It could limit the roofer’s access to specific working tools. In addition, finding sound footing would be difficult if there is water on the roof, and there will be increased chances of slipping off.

#4. It Makes The Installment Process Slower

The installment process is slow and working in bad weather conditions makes it even slower because you would experience difficulties handling materials, and proper footing won’t be possible.

#5. It Shortens The Lifespan Of Roofing Materials

Water from rain causes the roofing materials to expand or contract. This causes cracks in the shingles, felt, and other roofing materials, which in turn causes leakages and other roof installation defects.

You should be extremely careful if you are doing that job yourself. Hiring experts is safer as most of them do not work in such conditions. Do not make a roofer work on a wet roof or while raining.

While it is raining, roofing is risky, even for a professional roofer.

What Happens If It Rains When Installing A Roof?

The weather could be unpredictable as the conditions can change at any time. With this in mind, experienced roofing contractors are expected to take the precautions necessary for installing your roof.

They monitor the weather to install a roof when the weather is clear.

Roofers always carry protective coverings if the project is left unfinished or if it rains during the installation process. These protective coverings are made of tarpaulin that prevents rainfall on the unfinished roof.

 It has to be done as fast as possible using safety gears because tiny drops of water on the roof surface can make it slippery and cause injuries. Do not install shingles on wet surfaces as they won’t adhere properly.

An experienced roofer will ensure that there are no holes where rain could seep through while working on a roof. They make sure the home is safe from a downpour.

They could also use roof sealants like the butyl flash sealant tape to fix it temporarily till the weather is clear for a permanent repair.

These coverings should be readily available to cover the unfinished part till it stops raining. Installing a roof in wet conditions can make a new roof fail.

Roofing materials will not adhere properly to damp surfaces. If the roof plywood is wet during installment, it traps moisture inside the roof and causes rot, mold, or other problems.

Other inner components of your roof are susceptible to damage from water, and you should avoid exposure to moisture. Materials could bulge or wrinkle in high humidity and may cause bumps on the surface of your roof.

Wrinkles and ripples are signs that you should reroof your home. To prevent future expenses and damages, wait for the weather to be clear before installing a roof.

Most manufacturers of roofing products give guidelines on how you should install shingles and other materials. However, they do not guarantee your installation and are not liable for any damage from faulty installation.

This is why you need to be careful when hiring a roofer. If your roof is installed correctly, it will last for an extended period.

Can Roof Underlayment Get Rained On?

Underlayment is a critical part of a roofing system. It is installed between the roof deck inside and shingles outside.

It also acts as a protective layer against water penetration. Although not 100% waterproof, it prevents water from seeping through the roof. 

If damaged, it reduces its effectiveness. Shingles are the only roofing component that can get wet or rained on for a long time. If water gets through the shingles, the underlayment protects the decking.

 Yes, roof underpayment can get rained on, but it should not be for an extended period. Underlayments are installed like shingles and roofers to overlap the edges and ensure the roof is adequately covered.

It is referred to as felt or tar paper, and it keeps the roof dry while the shingles protect the felt. 

Due to its ability to resist, water acts as a shield and repels the water, allowing the roof to breathe. If exposed to moisture or sunlight for a long time, the felt can get damaged.

Do not leave the roofing felt uncovered for more than three days. If it rains unexpectedly, covers open areas and stops working.

However, if it doesn’t rain heavily, roofers can only tear off and replace each part one at a time in cases of replacement.

Ensure proper planning before installment and get all materials needed. Put all unforeseen circumstances and how you would deal with them into consideration.

Choose days when the forecast doesn’t predict rainfall. Buy tarps to cover up your roofing felt if it rains.

Although tarps would not keep your roof dried, they would help immensely. Do not work with wet roofing felt because it may rip. Can You Use Roofing Felt Under Vinyl Plank Flooring?


When it rains, the best thing to do is to stop working, cover up the roof with tarps, and wait till the rain stops.

Thunderstorms follow heavy downpours, and walking on a roof which is a high surface, exposes you to being struck by lightning.

Also, rains slow down the working process as it’s challenging to lay felt and shingles in wet conditions.

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