The Barrier™ under concrete thermal insulation and vapor retarder product family is a high-performance, simple to use and labor saving product for all of your under-slab, under concrete, and radiant floor insulation projects. The Barrier's™ unique core material is an expanded polystyrene (EPS) with a jobsite tough, heavy-duty poly film laminated on both sides. Adding to the Barrier's™ labor saving features, NOFP added a 3" flap of film running down the sixty-four-foot length of the Barrier™ insulation with an aggressive double-faced adhesive on the opposite side of the overlap -providing a seamless vapor barrier. This extra material allows one roll to be neatly secured up to the next roll. All that your jobsite crew needs to do is to remove the release paper off of the double stick taped edge, compress the overlapping flap on top of the exposed adhesive, compress the edge - and you have a seamless system that will not allow the transfer of heat or cold and will retard the transfer of all forms of moisture increasing the overall efficiency of your radiant floor heating system.


In addition to these great properties, The Barrier™ / BarrierXT™ / BarrierX5™ contains recycled EPS foam taking out thousands of pounds of material out of the waste stream. By using recycled EPS foam in our proprietary recycling equipment, The Barrier™ is also a Green Building Product. So not only do you have a great product, you also have a product that is great for the environment.

When you are considering materials for your home or project, remember to consider all these valuable features of the Barrier product family:



• Durable / Flexible / Walkable
• 100% Waterproof and Vapor-proof
• Expanded polystyrene for real insulating value
• Fast / Easy Installation - 4’ x 64’ rolls for significant labor savings
• Seamless – Patented factory applied tape edge reduces thermal bridging

• Printed layout guides for tubing layout or trimming
• Sustainable = Recycled EPS content
• Improved 3” overlap flange
• Full product coverage –no need to purchase additional
 material for overlap loss

Barrier Roll









The Barrier Product Line Specs




Intro to ICF

Why use ICF

NUDURA Benefits

HOLDFAST Advantage

Holdfast Advantage

NUDURA Benefits

Building Green


Technical Library

AIA/CE Program

The Barrier


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