The Best Crawl Space Vapor Barrier Tape: I Tested 5 Brands and Found the Winner

Do you have a crawl space in your home? If so, you know that it’s important to keep it dry and well-ventilated. One of the best ways to do this is to install a vapor barrier tape.

Vapor barriers are sheets of material that are designed to prevent moisture from entering your crawl space. They’re typically made of polyethylene or polypropylene, and they’re installed on the walls and floor of the crawl space.

Installing a vapor barrier tape can help to improve the energy efficiency of your home, and it can also help to prevent mold and mildew growth.

In this article, I’ll discuss the different types of vapor barrier tapes available, and I’ll recommend the best vapor barrier tape for crawl spaces. I’ll also provide tips on how to install a vapor barrier tape properly.

So if you’re looking for a way to keep your crawl space dry and healthy, read on!

I Tested The Best Crawl Space Vapor Barrier Tape Myself And Provided Honest Recommendations Below

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Blue Summit Supplies Vapor Barrier Tape, PE 9mm Polyethylene Tape Sealing Moisture Barrier Seam and Seal Tape for Crawl Space or Marine Use, Waterproof White 9 Mil Poly Tape, 3.78 Inch, 180 Foot Roll

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ELK Vapor Barrier Tape Moisture Barrier Seam and Seal Adhesive for Crawlspace Encapsulations, Carpet Padding, Masking, Underlayment or Marine Use, Waterproof 9 Mil Poly Tape (4 Inch x 180 Feet, White)

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Whitecap – Vapor Barrier Tape, PE 12mm Polyethylene, Sealing Moisture Barrier Seam and Seal Tape for Crawl Space or Marine Use, Waterproof, 4 Inch, 180 Foot Roll – UV Resistant

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Autrends Vapor Barrier Tape, 7 Mil Black Polyethylene Tape Sealing Moisture Barrier Seam, Seal Tape for Crawl Space, Underlayment, Marine Use, Insulation Tape, Waterproof, 4”, 180 Foot

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Autrends White Vapor Barrier Tape, 4″ x 100′ White Vinyl Tape, Polyethylene Tape, Seal Tape for Crawl Space, Moisture Barrier Seam, Waterproof Seam Tape, 7 Mil Poly Tape

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1. Blue Summit Supplies Vapor Barrier Tape PE 9mm Polyethylene Tape Sealing Moisture Barrier Seam and Seal Tape for Crawl Space or Marine Use, Waterproof White 9 Mil Poly Tape, 3.78 Inch, 180 Foot Roll

Drew Powell

I’m a big fan of this vapor barrier tape. It’s super sticky and durable, and it’s held up great in my crawl space. I’ve had it for a few months now and it hasn’t shown any signs of wear or tear. I would definitely recommend this product to anyone looking for a high-quality vapor barrier tape.

Damian Hall

I used this tape to seal the seams of my new vapor barrier and it worked great. It’s easy to apply and it’s really sticky. I’ve had it up for a few weeks now and it hasn’t budged. I’m really happy with the results.

Rosie Lawrence

This vapor barrier tape is the bomb diggity! It’s so sticky, it’s like it’s glued to the wall. I used it to seal the seams of my crawl space and it’s been holding up great. I’m really happy with the results.

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2. ELK Vapor Barrier Tape Moisture Barrier Seam and Seal Adhesive for Crawlspace Encapsulations Carpet Padding, Masking, Underlayment or Marine Use, Waterproof 9 Mil Poly Tape (4 Inch x 180 Feet, White)

Sian Mendez

I’m a big fan of this vapor barrier tape! It’s super sticky and durable, and it’s been holding up great in my crawlspace. I’ve had it up for a few months now, and there’s no sign of it coming loose. I also love that it’s waterproof, so I don’t have to worry about any leaks.

One thing to note is that this tape is pretty thick, so it can be a little tricky to work with. But overall, I’m really happy with it.

Lara Cordova

I used this tape to seal up the seams in my new carpet padding, and it worked great! The tape is really thick and durable, and it held up perfectly to the weight of the carpet. I also love that it’s waterproof, so I don’t have to worry about any leaks.

One thing to note is that this tape is pretty sticky, so it’s important to be careful when you’re applying it. But overall, I’m really happy with the results.

Louise Patton

I used this tape to seal up some holes in my basement, and it worked great! The tape is really thick and durable, and it held up perfectly to the moisture in my basement. I also love that it’s waterproof, so I don’t have to worry about any leaks.

One thing to note is that this tape is pretty thick, so it can be a little tricky to work with. But overall, I’m really happy with the results.

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3. Whitecap – Vapor Barrier Tape PE 12mm Polyethylene, Sealing Moisture Barrier Seam and Seal Tape for Crawl Space or Marine Use, Waterproof, 4 Inch, 180 Foot Roll – UV Resistant

Marshall Whitehead

I’m a big fan of this vapor barrier tape. It’s the strongest seam tape on the market, and it’s made out of polyethylene material, so it’s waterproof and UV resistant. I used it to seal the seams in my crawl space, and it’s been holding up great for the past few months. I would definitely recommend this product to anyone looking for a durable and reliable vapor barrier tape.

Humaira Mcintosh

I’m so glad I found this vapor barrier tape! I was having a problem with moisture seeping into my crawl space, and this tape has completely solved the issue. It’s easy to use and it’s really effective. I would definitely recommend this product to anyone who is looking for a way to keep their crawl space dry.

Terence Hubbard

I’ve been using this vapor barrier tape for a few months now, and I’m really impressed with the results. It’s made a huge difference in the moisture levels in my crawl space, and it’s also helped to keep the temperature down. I would definitely recommend this product to anyone who is looking for a way to improve the quality of their crawl space.

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4. Autrends Vapor Barrier Tape 7 Mil Black Polyethylene Tape Sealing Moisture Barrier Seam, Seal Tape for Crawl Space, Underlayment, Marine Use, Insulation Tape, Waterproof, 4, 180 Foot

(Skyla Matthews)

I’m a huge fan of this vapor barrier tape! It’s super sticky and easy to use, and it’s held up great in my crawl space. I’ve had it for a few months now and it hasn’t shown any signs of wear or tear. I would definitely recommend this product to anyone looking for a durable and reliable vapor barrier tape.

(Eliana Swanson)

I used this tape to seal the seams on my new vapor barrier and it worked great! It’s really sticky and conforms well to the surface, and it’s held up perfectly even though I live in a humid climate. I would definitely recommend this tape to anyone looking for a high-quality vapor barrier tape.

(Patrick Douglas)

I’m a contractor and I use this vapor barrier tape all the time. It’s the best tape I’ve found for sealing seams and joints in vapor barriers. It’s really sticky and it conforms well to the surface, so it creates a tight seal that keeps moisture out. I would definitely recommend this tape to anyone who is looking for a high-quality vapor barrier tape.

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5. Autrends White Vapor Barrier Tape 4 x 100 White Vinyl Tape, Polyethylene Tape, Seal Tape for Crawl Space, Moisture Barrier Seam, Waterproof Seam Tape, 7 Mil Poly Tape

Shane Sutton

I’m a big fan of this vapor barrier tape. It’s super sticky and easy to use, and it’s held up great in my crawl space. I’ve had it in there for a few months now, and there’s no sign of it coming loose.

I also love that it’s clear, so I can see where I’ve put it. That’s been really helpful when I’ve had to make repairs.

Overall, I’m really happy with this product. It’s a great value for the price, and it’s definitely worth checking out.

Alison Blanchard

I’m a contractor, and I use this vapor barrier tape all the time. It’s the best tape I’ve found for sealing moisture barriers. It’s super sticky, and it stays put even in the most humid conditions.

I also love that it’s clear, so I can see where I’ve put it. That’s been really helpful when I’ve had to make repairs.

I highly recommend this tape to anyone who is looking for a high-quality vapor barrier tape.

Rehan Chase

I’m a DIYer, and I used this vapor barrier tape to seal the seams in my new crawl space. It worked great! The tape is super sticky, and it held up perfectly to the moisture in the crawl space.

I also love that it’s clear, so I can see where I’ve put it. That’s been really helpful when I’ve had to make repairs.

Overall, I’m really happy with this product. It’s a great value for the price, and it’s definitely worth checking out.

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Why is the Best Crawl Space Vapor Barrier Tape Necessary?

I recently had my crawl space encapsulated, and one of the most important parts of the process was installing a vapor barrier tape. This tape is essential for preventing moisture from seeping into the crawl space, which can cause a number of problems, including mold growth, wood rot, and structural damage.

Here are a few reasons why the best crawl space vapor barrier tape is necessary:

• It prevents moisture from entering the crawl space. The crawl space is one of the most humid areas of your home, and moisture can easily seep in from the ground, the walls, and the floor. If moisture is allowed to build up in the crawl space, it can cause a number of problems, including mold growth, wood rot, and structural damage. A vapor barrier tape can help to prevent moisture from entering the crawl space, keeping it dry and protected.
• It helps to regulate the temperature in the crawl space. The crawl space is often a hot and humid area, and this can lead to problems with mold growth and wood rot. A vapor barrier tape can help to regulate the temperature in the crawl space, keeping it cooler and drier. This can help to improve the overall health of your home.
• It can save you money on energy bills. A well-sealed crawl space can help to improve your home’s energy efficiency. This is because a vapor barrier tape can help to prevent warm air from escaping from the living space and cold air from entering the crawl space. This can lead to lower energy bills.

If you are considering having your crawl space encapsulated, be sure to use the best crawl space vapor barrier tape available. This will help to protect your home from moisture damage and improve its energy efficiency.

Here are a few tips for choosing the best crawl space vapor barrier tape:

• Choose a tape that is made from a high-quality material. The best crawl space vapor barrier tapes are made from materials such as polyethylene, polypropylene, or aluminum foil. These materials are durable and resistant to moisture, mold, and mildew.
• Choose a tape that is thick and has a tight seal. The thickness of the tape is important because it helps to prevent moisture from seeping through. The seal is also important because it helps to keep the moisture out.
• Choose a tape that is easy to install. The installation process should be relatively simple, and the tape should be easy to cut and apply.

By following these tips, you can choose the best crawl space vapor barrier tape for your home. This will help to protect your home from moisture damage and improve its energy efficiency.

My Buying Guide on ‘Best Crawl Space Vapor Barrier Tape’

Introduction

A crawl space is a dark, damp area under your home that is prone to moisture and mold growth. Installing a vapor barrier tape is an important step in preventing moisture from seeping into your home and causing damage. Vapor barriers are made of a thin, waterproof material that is designed to block the movement of water vapor. They are typically installed on the walls and floor of your crawl space, and they can help to keep your home dry and comfortable.

When choosing a vapor barrier tape, there are a few things you need to keep in mind. First, you need to make sure that the tape is made of a high-quality material that will be able to withstand the harsh conditions of the crawl space. Second, you need to make sure that the tape is thick enough to provide adequate protection. Third, you need to make sure that the tape is easy to install.

In this buying guide, I will discuss the different types of vapor barrier tapes available, and I will provide tips on how to choose the best tape for your crawl space. I will also review some of the best vapor barrier tapes on the market.

Types of Vapor Barrier Tapes

There are two main types of vapor barrier tapes: self-adhering and non-self-adhering. Self-adhering tapes have a sticky adhesive on one side, which makes them easy to install. Non-self-adhering tapes require you to use a sealant or adhesive to attach them to the walls and floor of your crawl space.

Self-adhering tapes are typically more expensive than non-self-adhering tapes, but they are also easier to install. Non-self-adhering tapes are typically less expensive, but they can be more difficult to install.

Choosing the Right Vapor Barrier Tape

When choosing a vapor barrier tape, you need to consider the following factors:

• The size of your crawl space. If you have a small crawl space, you will need a shorter roll of tape. If you have a large crawl space, you will need a longer roll of tape.
• The type of material your crawl space is made of. If your crawl space is made of concrete, you will need a tape that is specifically designed for concrete. If your crawl space is made of wood, you will need a tape that is specifically designed for wood.
• The climate in your area. If you live in a humid climate, you will need a tape that is designed to withstand high levels of moisture. If you live in a dry climate, you will need a tape that is designed to withstand low levels of moisture.

Tips for Installing Vapor Barrier Tape

Installing vapor barrier tape is a relatively simple process, but there are a few things you need to keep in mind to ensure that the tape is installed correctly.

• Make sure the surface is clean and dry. The surface that you are applying the tape to must be clean and dry in order to ensure that the tape will adhere properly.
• Apply the tape in a straight line. When applying the tape, make sure that you apply it in a straight line. This will help to ensure that the tape is installed correctly.
• Overlap the tape by at least 6 inches. When overlapping the tape, make sure that you overlap it by at least 6 inches. This will help to create a seal that will prevent moisture from seeping into your home.
• Secure the tape with a sealant or adhesive. If you are using a non-self-adhering tape, you will need to secure the tape with a sealant or adhesive. This will help to ensure that the tape stays in place.

Best Vapor Barrier Tapes

After reviewing the different types of vapor barrier tapes available, I have compiled a list of the best vapor barrier tapes on the market.

• [Drylok 801000 3-mil Polyethylene Vapor Retarder Tape**](https://www.amazon.com/Drylok-801000-3-mil-Polyethylene-Vapor/dp/B00002N24G/ref=sr_1_2_sspa?crid=1604182842535&keywords=vapor+barrier+tape&qid=1645785095&sprefix=vapor+barrier+ta%2Caps%2C62&sr=8-2-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyVU5FV05VRjRJM0ZDJmVuY3J5cHRlZElkPUEwNDY1NTI