VaporBlock® Series
VaporBlock® Series (VB10)
Types:
When constructing a building, ensuring the longevity and durability of the structure is paramount. One of the critical aspects of this is moisture control, which, if neglected, can lead to serious issues such as mold, mildew, and even structural damage. This is where the Viaflex VaporBlock Underslab Moisture Barrier comes into play. Designed to protect your building from the adverse effects of moisture, VaporBlock is a high-performance under-slab vapor barrier that not only shields your structure but also enhances indoor air quality and occupant health.
Features
Ultra-Low Moisture Vapor Permeability
VaporBlock is engineered with ultra-low moisture vapor permeability, making it one of the most effective barriers against moisture migration through concrete slabs and walls. This feature ensures that your structure remains dry, protecting it from moisture-related damage.
By maintaining low moisture levels, VaporBlock helps prevent mold growth, which can lead to significant health issues and costly repairs. This feature benefits regions with high humidity or where the water table is near the surface.
Superior Puncture Resistance
The puncture resistance of VaporBlock ensures that it can withstand the rigors of installation and the pressure of the concrete slab above it without tearing or becoming compromised.
This durability reduces the risk of damage during installation, ensuring that the vapor barrier remains intact and effective over the long term. It also provides peace of mind, knowing that the barrier will continue to perform even under challenging conditions.
Resistance to Decay and Degradation
VaporBlock is resistant to decay and degradation, which is crucial for a product that is designed to last for the life of the structure it protects.
This resistance ensures that the barrier will continue to provide protection against moisture for decades, reducing the likelihood of needing costly repairs or replacements down the line.
High Tensile Tear Strength
The high tensile tear strength of VaporBlock contributes to its durability, allowing it to resist tearing under stress or during installation.
This feature ensures that the vapor barrier remains functional and effective even in demanding environments, providing long-lasting protection for your structure.
Available in 10 and 15 Mil Thickness
VaporBlock is available in both 10 and 15 mil thicknesses, providing flexibility for different project requirements. The 15 mil version offers additional durability and protection, making it suitable for more demanding markets.
The difference in thicknesses allows you to choose the right product for your specific needs, balancing cost with the level of protection required for your project.
Compliance with ASTM E-1745-11
VaporBlock is manufactured to meet and exceed the requirements of ASTM E-1745-11, the standard specification for plastic water vapor retarders used in contact with soil or granular fill under concrete slabs.
Compliance with this standard ensures that VaporBlock has been tested and proven to perform at the highest level, providing confidence in its effectiveness and reliability.
Application Usage
More Product Details
It is clear that Viaflex VaporBlock Underslab Moisture Barrier offers exceptional protection against moisture-related issues in construction. Its ultra-low moisture vapor permeability, superior puncture resistance, and resistance to decay make it an outstanding choice for anyone looking to protect their structure from moisture damage.
VaporBlock is highly recommended for both residential and commercial construction projects where moisture control is a priority. Its proven effectiveness, backed by rigorous testing and quality assurance, makes it a top contender in the market for underslab moisture barriers.
Not sure which vapor barrier is right for your project? Read our VaporBlock® and VaporBlock Plus® Buyer’s Guide.
Resources
Instruction
Related Accessories
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VaporBoot Plus Preformed Pipe Boots (VBPBT)
VaporBoot Plus Preformed Pipe Boots are produced from heavy 40 mil co-extruded polyethylene and barrier resins for excellent strength and durability. The preformed boots are stepped to fit 1″ to 4″ wide pipe penetrations. VaporBoot Plus Preformed Pipe Boots are available in quantities of 12 per box.
VaporBoot System (VBOOT, TP2BR, TVB4)
The VaporBoot System is designed to assist in securing pipe and other penetrations that run vertically through the vapor retarder material. The VaporBoot System, made from our high performance VaporBlock® material, offers a quick solution and is delivered to the jobsite. The complete package includes 25 VaporBoots 18”x18” (with a precut center marker), 1 roll of Butyl Seal Tape (TP2BR) 2″x50′, and 1 roll of Vapor Bond Tape (TVB4) 4”x210’.
Butyl Seal Tape (TP2BR/TP6BR)
Butyl seal is a double-sided aggressive reinforced black butyl rubber tape used to join panels of polyethylene and polypropylene together by overlapping the edges and applying Butyl Seal in between. It is also used to adhere to concrete walls and footings when properly prepared. Butyl Seal is non-hardening and flexible.
Available in 2″ x 50′ and 6″ x 50′ rolls.
POUR-N-SEAL™ (PNS1G)
POUR-N-SEAL™ is a gray two part medium viscosity high strength epoxy used to seal around multiple pipe penetrations in tight areas where pipe boots are not practical, when installing VaporBlock moisture and gas barriers. (Adhesive backed 1″ weather stripping FOAM25 required—sold separately).
R25B Tape (R25B)
R25B Tape is a single sided aggressive synthetic elastomeric adhesive that bonds instantly to properly prepared polyethylene and polypropylene. The black polymer backing and adhesive is specially formulated to provide years of performance even in direct sunlight. A poly release liner provides for ease of installation.
Available in a 4″ x 100′ roll.
Vapor Bond Tape (TVB4)
This white single-sided tape combines a heavy duty, weather-resistant polyethylene backing with an aggressive rubber adhesive. VaporBond Tape offers excellent seaming capabilities for our materials with an “Easy Tear” feature to reduce installation time. TVB4 has a WVTR of 0.18 perms per ASTM D 833. Typical markets include vapor retarders, covers and liners.
Available in a 4″ x 210′ roll.
VaporSeal™ Tape (TVSP4/TVSP12)
VaporSeal™ Tape is a single-sided 7-layer gas barrier tape with a release liner for ease of installation. The backing contains a layer of highly impermeable EVOH designed to block migration of radon, methane and VOC’s. An aggressive acrylic adhesive provides outstanding adhesion to polyethylene over a wide temperature range. Typical uses include joining, repairing and sealing gas/moisture barriers.
Available in 4″ x 160′ and 12″ x 50′ rolls.
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