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Vapor Barrier

Stego Wrap Vapor Barrier

Polyolefin under-slab vapor barrier that protects concrete slabs from moisture intrusion and soil gases like radon and methane — in 10-mil, 15-mil, and 20-mil thicknesses.

Stego Wrap is a polyolefin vapor barrier used to protect concrete slabs from moisture intrusion and soil gases such as radon and methane. These Vapor Barriers come in 10-mil, 15-mil, and 20-mil thicknesses. The 15-mil and 20-mil rolls are Class A-rated, and have low permeance.

Stego Wrap 20 Mil
Stego Wrap 20 Mil
Stego Wrap 20 Mil - 14' x 105'
Stego Wrap 20 Mil - 14' x 105'
Stego Wrap 20 Mil - 14' x 105'
Stego Wrap 20 Mil - 14' x 105'

Stego Wrap 20 Mil - 14' x 105'

$1,312.75
Stego Wrap 15 Mil
Stego Wrap 15 Mil
Stego Wrap 15 Mil - 14' x 140'
Stego Wrap 15 Mil - 14' x 140'
Stego Wrap 15 Mil - 14' x 140'
Stego Wrap 15 Mil - 14' x 140'

Stego Wrap 15 Mil - 14' x 140'

$1,266.75
Stego Wrap 10 Mil (Class A)
Stego Wrap 10 Mil (Class A)
Stego Wrap 10 Mil (Class A) - 14' x 210'
Stego Wrap 10 Mil (Class A) - 14' x 210'
Stego Wrap 10 Mil (Class A) - 14' x 210'
Stego Wrap 10 Mil (Class A) - 14' x 210'

Stego Wrap 10 Mil (Class A) - 14' x 210'

$898.34
Stego Wrap 10 Mil (Class C)
Stego Wrap 10 Mil (Class C)
Stego Wrap 10 Mil (Class C) - 14' x 210'
Stego Wrap 10 Mil (Class C) - 14' x 210'
Stego Wrap 10 Mil (Class C) - 14' x 210'
Stego Wrap 10 Mil (Class C) - 14' x 210'

Stego Wrap 10 Mil (Class C) - 14' x 210'

$882.34
Stego Mastic (5 Gallon Pail)
Stego Mastic (5 Gallon Pail)

Stego Mastic (5 Gallon Pail)

$389.42
Stego Crete Claw 6
Stego Crete Claw 6
Stego Crete Claw 6
Stego Crete Claw 6

Stego Crete Claw 6" - Slab Bonding Roll

$389.02
Stego Crete Claw 3
Stego Crete Claw 3
Stego Crete Claw 3
Stego Crete Claw 3

Stego Crete Claw 3" - Perimeter Seal Roll

$187.55
StegoTack Tape
StegoTack Tape
StegoTack Tape 2
StegoTack Tape 2

StegoTack Tape 2" Roll

$93.15
Stego Tape (Seaming Tape) Roll
Stego Tape (Seaming Tape) Roll
Stego Tape (Seaming Tape) Roll
Stego Tape (Seaming Tape) Roll
Stego Tape (Seaming Tape) Roll
Stego Tape (Seaming Tape) Roll

Stego Tape (Seaming Tape) Roll

$84.26
Vapor Barrier Mastic
Vapor Barrier Mastic

Stego Mastic (20 oz Sausage Tube)

$79.22
Overview

Stego Wrap Vapor Barrier

Made from Stego Industries' (SI) secret blend of prime virgin resins and additives, their Wrap 15-MIL Vapor Barrier is an ASTM E1745 Class A Vapor Barrier (below 0.01 perms). They wanted to develop a product that would maintain its extremely low permeance — the degree to which a material allows the flow of matter or energy. The protection provided by their Wrap Vapor Barrier offers the flexibility to change flooring types and the overall building use without being concerned about below-slab moisture vapor.

Even though it's the side of the building never seen, it's the foundation that keeps the structure safe. They created these barriers for below your building's floor slab. Since 1998, SI has developed films that have revolutionized the way the construction industry protects against moisture vapor and soil gases with this excellent product. This Wrap Vapor Barrier has drastically improved performance against moisture intrusion versus conventional methods.

Features & Benefits

Features and Benefits

Proven track record

Has an unsurpassed performance track record.

Longevity & strength

Offers longevity and strength for long-term performance.

Tear & puncture resistant

Exceptionally resistant to tearing and punctures.

Easy installation

Easy, reliable installation on the jobsite.

Priced competitively

Competitively priced for the performance it delivers.

Life-of-building warranty

Warranty for the life of the building, plus installation support.

Why It Matters

Defense Against Floor Failure Is Excellent

The infiltration of moisture through concrete slabs means there is a major building defect liability. This Wrap Vapor Barrier has an exceptionally low permeance rating, to prevent water vapor and soil gases from compromising the integrity of the building envelope which can lead to serious problems with the concrete slab, the floor coverings, and indoor air quality. The Wrap Vapor Barrier is absolutely the best product to protect against any of these costly failures.

Choosing

Choosing Between Above-Grade Wraps vs Below-Grade Wraps

If you think of your home as a shell that envelopes your home, you can protect it from winds, temperature fluctuations, and moisture if you use the right products placed in the right locations. A really good example is installing your insulation at the start of the construction instead of on the floor joists. By doing so, you will make your envelope much stronger and secure throughout your entire home. You must know the difference between above-grade weather barriers and below-grade crawl space vapor barriers before ever starting construction to ensure you have chosen the right system for your entire house.

Above grade

Above-grade weather barriers

Weather barriers applied to walls and floors for better airflow through the walls while blocking water from passing through but allowing water vapor to escape. Above-grade barriers are breathable membranes, critical to stopping moisture build-up on the wrong side of the wall causing mildew and rot.

Below slab

Below-slab / crawl space vapor barriers

Vapor barriers are constructed for a completely different purpose. These barriers are a lot less passable than weather barriers and should only be used where the movement of vapor is not wanted. Vapor barriers are designed to maintain dry interior slabs and dry, safe crawl spaces.

Longevity

Its Longevity and Strength

You really only have one chance to choose and install a below-slab vapor barrier before the slab is placed. Therefore, the strength and longevity of the material are critical to the success of the system. The Wrap Vapor Barrier is designed to get through difficult installation conditions without tearing or puncturing easily. The prime virgin resins used to develop the Wrap Vapor Barrier will help ensure long-term performance.

About the Life of the Building Warranty: SI offers the first-ever warranty for its line of Wrap Vapor Barriers and Retarders. The warranty reinforces the 20-year track record without so much as one claim of product failure.

SI also provides accessories that are needed for an ASTM E1643 compliant installation which have been designed for their Wrap line: Tape, Mastic, Tack Tape, Crete Claw Tape, and Term Barriers. By using these products, you will be able to perform an efficient installation, saving time and resources while maintaining the integrity of the vapor barrier system.

Installation

Installing Stego Wrap

Stego Wrap can be installed over an aggregate, sand, or tamped earth base. Unroll the vapor barrier over the area where the slab is to be placed. It should fully cover the concrete placement area with a 6" taped overlap. See full installation instructions at stegoindustries.com.

Buying Guide

Where to Buy, Cost & Stego vs. Visqueen

Where can I buy Stego Wrap?

Stego Wrap is available through a local distributor, however product availability is subject to regional stock levels. The full product line and free shipping is available through a national distributor like overlakesupply.com.

How much does Stego Wrap cost?

Depending on the mil thickness and vapor barrier class rating, the Stego Wrap pricing ranges from about $0.19 to $0.41 per square foot. This pricing includes shipping. Generally, the higher the mil thickness, the higher the cost per square foot.

How does Stego Wrap stack up vs. Visqueen?

Visqueen is a more generic term referring to lower grade plastic films that have much higher permeance and less durability than Stego Wrap. Most generic plastic films do not comply with ASTM E 1745 and are not a good choice for under-slab vapor barrier protection.

See It in Action

Stego Wrap Videos

Case Study

Keeping Chavez Concrete On Track During Construction

For three generations, Chavez Concrete has been the most trusted name in New Mexico and it's one of the largest and oldest concrete companies. They know what it takes to get the job done right the first time — through their dedication, craftsmanship, hands-on leadership, and the ability to select the right tools. When Chavez secured the project for both Cost Plus World Market and Bed Bath and Beyond, to pour the concrete, they stayed on course and chose the Wrap Vapor Barrier for their project's below-slab moisture protection.

Chavez knew they were dealing with a very large surface area, due to the size and scope of the new stores which are over 600 yards of concrete in the same shopping center. They had a planned April opening that was quickly approaching. They knew that having the right vapor barrier was essential for getting the job done right and quickly. They relied on the Wrap Vapor Barrier and Tape to get the vapor barrier they needed.

Even though they were under a great deal of pressure from the approaching deadlines, they knew they had to pay attention to details that are often overlooked — one being the vapor protection, since below-slab conditions can cause unwanted vapor diffusion from the subgrade into the slab. The vapor barrier must be long-lasting and meet the ASTM E1745 Class A performance criteria and be easily installed by the procedures outlined in ASTM E1643. Chavez chose two SI products that fit their needs for quality and a quick turnaround: SI Wrap and Tape.

SI's Wrap is the leader in the industry for below-slab moisture vapor protection. This product is an extremely low permeance under-slab vapor barrier that is very easy to use and very effective. It offers long-term protection that companies like Chavez rely on to build a lasting reputation. These products are subjected to rigorous testing including cycles of wetting and drying and exposure to a range of temperatures to ensure they exceed the requirements of ASTM E1745 Class A.

As Chavez Concrete put it: "The 15-Mil Vapor Barrier and Tape were really easy to work with because of the flexibility of the products. When you have a high-performance vapor barrier and accessories that are easy to work with, it reduces the labor hours used to install the material." By using these products, they maintained their schedule with an effective installation and achieved the project's specs in compliance with ASTM E1643.

Questions

Stego Wrap FAQ

Where is this product made?

Made in the USA.

How do I install them?

See installation guides located on each of the product pages, and the installation summary above.

How long will shipping take?

Orders typically ship within 1-2 business days if placed before 2PM Eastern Time. Transit times are approximately 2-3 business days in the lower 48 states. The day the order ships is not counted as a transit day. All items ship free.

How much tape and/or mastic do I need?

In general, the average project uses about 1.5 to 2 rolls of Tape per roll of Wrap. A 5-gallon pail of Mastic, about 60 mils thick, will cover around 130 square feet, or about 30 individual pipe penetrations. Other accessories may be needed for sealing the vapor barrier to perimeter terminations. Every job will vary and should be consulted by an engineer.