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PERMINATOR - VAPOR BARRIER
Perminator is an underslab vapor barrier. It comes in 10 and 15 mil thicknesses and is made to reduce the penetration of moisture, water vapor and radon gas through the slap of the structure. Perminator also reduces the growth of fungus, mildew, and mold.
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This product is warehoused in 11 locations across the country. *Subject to being out of stock at any particular location.
Underslab Vapor Barrier
Perminator Underslab Vapor Barrier is the next generation of polyolefin-based resin in chemical technology. It offers the best vapor barrier in the industry with an extremely effective, economical option for reducing the penetration of moisture and water vapor from the slab then into the structure. This, in turn, will reduce the growth of fungus, mildew and mold. The product will reduce radon gas from getting into the structure as well.
It is available in two thicknesses, 10 mil and 15 mil, and both are offered in 200-feet (6m) long rolls.This barrier will prevent uncontrolled moisture from getting into the slab, allowing the slab to maintain the maximum slab moisture emission rate and humidity level as allowed by the flooring manufacturer's specifications.
The 12-foot (3.66m) wide 15 mil and 15-foot (4.57m) wide 10 mil rolls require fewer seams during the application. Installation is much faster and easier. All seams (joints), both on the side and the end, should overlap 6-feet (152.4 mm) and then taped using 4-inch (101.6 mm) wide P-tape from W.R. Meadows. The The rolls move quickly and smoothly over level tamped soil or compacted fill.
Ways For Using this Product:
Perminator underslab vapor barrier is designed specifically for underslab construction that has tamped and leveled or compacted fill. The 200-foot (61m) long sheets can be unrolled as is or cut to size, then installed using the overlapping approach. Overlaps are 6-inches (152.4 mm) wide and the seams should be sealed using 4-inch (101.6 mm) wide P-Tape.
Protection Course is a multi-ply, semi-rigid core made of mineral fortified asphalt. It can be used as a protection course for waterproofing membranes. The required sheet lengths should be cut to size and kept at the top of the waterproofing membranes by using P-Tape or the Termination Bar from W.R. Meadows.
This new resin technology will provide greater puncture resistance while still maintaining one of the lowest perm ratings in the entire industry. It will not crack, tear, snag, puncture, or split very easily. It's strong enough to stand up to all normal construction job site conditions along with traffic.
• Is available in 10 mil and 15 mil thickness in 200-foot (61m) long rolls.
• This product will reduce penetration from moisture and water vapors through the slab to the
• Will reduce fungus, mold, and mildew.
• Will reduce radon gas from getting into the structure.
• Is resistant to methane gas.
• It's strong enough to withstand normal construction conditions and traffic.
• It will not crack, snag, puncture, tear, or split easily.
• Installs very quickly and easily over the tamped grade. No sand, gravel, or fill is needed.
• The 12-foot (15 mil) and 15-foot (10 mil) wide rolls required fewer seams during application.
• 10 or 15 mil thickness is marked clearly on the membrane for quick identification on the site.
• The VOC content is 0 g/L.
• The product is made in the USA
It will prevent uncontrolled moisture from getting into the slab which will allow the slab to preserve it's maximum slab moisture emission rate and humidity level as allowed by the flooring manufacture's specification.
Surface Preparation -
Level, tamp or roll the earth or granular material underneath the slab base as specified by the architectural drawings. Follow ASTM-1643-10 standard practice and procedure for installation of the vapor retarder used in contact with the earth or fill under the concrete slabs.
For Horizontal Application:
Unroll the 200-foot (61m) vapor barrier over the area where the slab is going to be poured. Cut it to the size needed, if necessary. It should cover the pour area completely. All seams, both side and end, should overlap 6-inches (152.4 mm) and then taped, using 4-inch (101.6 mm) wide P-tape.
Keep in mind, the tape area of adhesion should be free from all dust, dirt, and moisture allowing for maximum adhesion of the pressure-sensitive tape.
The best installation approach should include placing the roll on to the footing and against the wall. This will sandwich the vapor barrier between the footing, vertical wall, and the poured concrete floor. This process will protect the concrete slab from external moisture once the slab has been placed.
Before placing the concrete slab, make sure all penetrations, block-outs, and damaged areas have been repaired.
There are many municipal codes that do not allow the placement of vapor barriers over the footing because of breaking the bond between the wall and footing. While this is not an optimal application approach, W.R Meadows approves this alternative method when required by building code.
For Sealing All Projections:
You should cut a slit around pipes, ductwork, wire penetrations, and rebar in order to place the layer of vapor barrier. To protect the concrete slab from external moisture even further, take a piece of the vapor barrier and place a collar around the pipe as well.
Take a piece of it and cut it to a minimum width of 12-inches (304.8 mm). The length should be 1.5 times the pipe's circumference. Take a roofer's knife or a pair of scissors and cut “fingers” half the width of the film.
Wrap it around the pipe and tape the collar on to it then completely tape the fingers to the bottom layer of Perminator.
Should something happen that damages the it during or after installation, you will have to make repairs. Cut a piece of the roll that is large enough to cover the damaged area with a minimum overlap of 6-inches (152.4 mm) in all directions. Clean up the adhesion areas from dust, dirt, and moisture. Then tape down all edges using the tape.
Keep in mind, you do not have to overlay the rolls with gravel or sand. This product is strong enough to withstand all normal construction potential damages and traffic. Most flooring companies highly recommend the placement of the concrete slab directly onto the vapor barrier. This will eliminate the potential for trapping moisture in the blotter-effect, causing it to resurface through the slab into the flooring systems. You should be familiar with the local building codes and regulations along with the guidelines from the architectural and design firm before starting the application.
Vertical Wall Applications:
Install the waterproofing membrane by W.R. Meadows according to the instructions. While the membrane is still sticky or tacky, install this vapor barrier for protection over the applied waterproofing membrane. You can use either a termination bar with concrete nails or P-Tape at the end of the waterproofing which is advised for some applications. Take special care during back-filling against the material so it is not damaged or punctured. If damage happens, patch it using the techniques outlined previously. You can apply the tape to the foundation walls for increased bonding.
This underslab vapor barrier does not cancel out the need for relief of hydrostatic heads. A complete drain tile system should be placed on the exterior of the footing and on the interior of the footing. For the best concrete performance and durability, the concrete floor slab design should have the lowest possible slump yet assure complete hydration of the concrete.
Perminator tape can be found here. It is the appropriate tape to use when installing this underslab retarder.