Can You Felt a Shed Roof in the Rain

  • By: Rob Jones
  • Date: May 27, 2022
  • Time to read: 6 min.
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Do you have a shed in your backyard? If so, you may be wondering if you can felt the roof in the rain. After all, you won’t want your valuables getting wet and damaged while inside your shed. So, Can you felt a shed roof in the rain, or is it better to wait for nicer weather?

Installing roofing felt on a shed roof in the rain is possible, but it’s not ideal. The main reason you don’t want to lay roofing felt in the rain is that the felt and the roof will get wet. Placing wet roofing felt over wet wood will not allow the moisture in the wood to dry properly which may rot the wood.

Not only will placing roofing felt on a wet shed roof be harmful to the roof structure, but it is also dangerous for you. If it’s essential to felt the shed roof in the rain then you should keep reading to get some helpful suggestions to lower the risk and on how to felt a shed roof in the rain.

Can You Put Roofing Felt a Shed Roof in the Rain?

Installing roofing felt on a shed roof in the rain is definitely possible, but it’s not ideal. The main reason you don’t want to install roofing felt in the rain is because it can get wet and damage the material.

When installing the roofing felt in the rain, the shed roof should be as dry as possible to avoid any problems. If the shed roof is wet when putting the roofing felt on, there is a chance that the shed roof wood won’t dry properly, which will affect the quality of the wood.

However, if you have to install roofing felt in the rain, here are a few tips to make it as easy as possible:

  • Make sure the shed roof is completely dry before you start.
  • Use a tarp or other waterproof material to keep the roofing felt and tools dry.
  • Work quickly to avoid getting the roofing felt wet.
  • Have extra roofing felt on hand in case

How long does it take roofing roof felt to dry?

Roofing roof felt can take up to 24 hours to completely dry. You should avoid exposing the roof felt to any kind of precipitation until it is completely dry, as this could cause water damage.

Can You Install Shingles on Wet Roofing Felt?

If you’re wondering if you can install shingles on wet roofing felt, the answer is yes – you can. However, it’s not recommended, as installing shingles on top of wet roofing felt can lead to a number of problems.

shed with shingles

One reason you shouldn’t install shingles on wet roofing felt is that it can cause the shingles to prematurely wear out. Additionally, if there’s any moisture trapped under the shingles, it can cause the roofing felt to deteriorate more quickly. Moisture can also lead to the growth of mold and mildew, which can cause a number of health problems.


What do I need to put felt on a shed roof?

Roofing nails (Amazon link)

Shed roofing felt (Amazon link)

Waterproof tarp (Amazon link)

Before you start the task of adding felt to your shed roof, you’ll need to collect some items first.

If your shed roof is exposed without any waterproofing on it at all then I highly suggest you place some waterproof tarp over it. I would keep it over your shed roof until the rain passes and the wood has dried. If its urgent to add felt to your roof then you could work with the tarp to keep your shed roof as sry as possible as you apply the felt.

How to put roofing felt on a shed roof in the rain

To install roofing felt on a shed roof in the rain, you’ll need to do a few things differently than when the weather is dry.

How to put roofing felt on a shed roof in the rain:

It would be recommended to have a large tarp over your roof to keep it as dry as possible, a wet roof without adequate protection could deteriorate quickly if the rain doesn’t dry properly.

Either under the tarp or wait for the rain to pass, make sure the surface of the roof is clean and free of debris.

Then, cut the roofing felt to size using sharp scissors or a utility knife. Be sure to overlap the pieces by at least six inches.

Finally, use roofing nails or staples to secure the felt to the roof. When you’re finished, make sure the roof is completely dry before using it.

Is It Necessary to Apply Roofing Felt on a Shed?

If you are considering adding shingles to protect your shed’s roof from harmful weather elements such as wind and rain, you might want to consider investing in felt before adding the shingles.

Felt is a relatively inexpensive project that will save you tons of money that you would have otherwise had to have spent on repairs.

cutting roofing felt

Felt is the first line of defense protecting your shed’s roof structure and sealing it from excessive moisture which can lead to rot.

Harsh wind and rainstorms may be able to penetrate the protection of protective shingles, so it is best to be on the safe side and apply felt to your shed’s roof.

Adding roofing felt will give you an inexpensive moisture barrier that will prevent water from finding its way onto the OSB joints and causing structural damage.

How to Re-Felt Your Shed Roof: A Few Tips

First, assemble your tools. You will need a ladder, hammer, screwdriver, Stanley knife, shed roofing felt, and felting nails. Remember that most sheds are not designed to support the weight of a full-grown adult, so stay off the roof and on a ladder as much as possible when attaching felt onto your shed’s roof.

Strip off the old felt and remove any existing residue with a putty knife to ensure a clean, dry surface to attach your new felt pieces. You can use the hammer’s claw and the Stanley knife to pull away the previous felt on our shed.

Next, make sure that you measure your felt pieces twice, and cut them down to size. You can place the felt directly on the roof and nail it down with felt nails, or you can apply a waterproof paint seal to attach your felt pieces easily and effectively to the roof of your shed. When working on a slope, make sure to start your application at the bottom of the roof and work your way to the upward slope. You want felt to overhand on three sides to promote proper drainage. This is why it is important to measure twice!


So, can you felt a shed roof in the rain? Yes, you can felt a shed roof in the rain, but it comes with some risks to you and the wooden shed roof. If roofing the shed has to be done during bad weather then i would suggest nailing some tarp down first to keep the rain from soaking into the wooden roof.

Applying felt is a great way to protect your shed’s roof from excessive moisture and rot.

It is also best to apply shingles when the felt is dry to avoid damage that may eventually cause leaks.

Stay on the safe side and invest in your shed’s roof protection with felt.

Rob Jones

Rob is an enthusiast of all backyard DIY projects. He has spent many years researching, learning, and building. From a backyard shed to a garden pond, Rob will have done it!

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