Name: CuTex Copper Composite Root Barrier
Brand: Typar
SKU: CUTEX-3.9X100
Price: 1524.19 USD
Availability: InStock
Rating: 5.0 (1 reviews)

CuTex Copper Composite Root Barrier

SKU CUTEX-3.9X100

$1,524.19 - $1,524.19

$1,524.19

$1,524.19 - $1,524.19

$1,524.19

Free Shipping

CuTex · Copper Composite Root Barrier · Model CUTEX-3.9X100

A 3.9′ × 82′ roll of permeable geocomposite copper root barrier — a copper sheet mechanically encapsulated between two high-strength geotextiles. It works as a physical barrier and a chemical one: minute quantities of Cu2+ ions create a localized zone of inhibition, and root tips that approach it stop and progressively collapse roughly 1.5 cm short of the sheet. Used for invasive species containment, including Japanese Knotweed, and for protecting foundations, paving and buried services.

Roll Size: 3.9′ × 82′82 linear feet per roll
Construction: GeocompositeCopper between two geotextiles
Zone Of Inhibition: ~1.5 cmRoots stop short of contact
Action: DualPhysical plus Cu2+ ion release

Independently assessed at the University of Leeds
Effectiveness increases over time
Permeable to water and air
Effects stay local to the barrier
Free shipping on all orders

Order cutoff: rolls typically ship the same day, Monday through Friday, on orders placed before 12:00 noon EST.

Free Shipping - Please submit a Quote Request for quantities larger than listed below.

Quantity	Price Per Unit (Free Shipping)
1	$1,524.19
2+	$1,447.98
3+	$1,371.77
10+	$1,295.56

01 CuTex · Model CUTEX-3.9X100

A Copper Composite Root Barrier That Works Chemically And Physically

CuTex is a permeable geocomposite copper root barrier — a specially formulated copper sheet mechanically encapsulated between two high-strength geotextiles. It stops roots two ways at once: as a physical barrier of durable geotextile, and as a chemical one.

The chemistry is the difference. CuTex safely releases minute quantities of Cu2+ ions into the surrounding soil, creating a localized zone of inhibition. Root tips that grow toward that zone undergo a progressive collapse: the dividing cells at the very tip of the root — the meristem — die off, and the cells above differentiate. In effect the copper acts as a signal layer that plants avert their growth from, rather than a wall they keep pressing against until they find a seam.

1.5centimeter zone of inhibition — roots stop short

In sterile culture testing, roots grew toward the barrier and ceased about 1.5 cm from the composite — they never reached it.

02 Why it works

Deterrence Rather Than Deflection

A purely physical barrier redirects roots, which means it has to be perfect — any lap, seam or damaged spot becomes a path through. A chemical barrier removes the pressure at the source: roots stop before contact, so the sheet is not being probed for weaknesses. The effect also strengthens over time as Cu2+ ions diffuse into the surrounding soil, building the chemical barrier out from the composite rather than depleting it.

03 Product data

Specifications

Model	CUTEX-3.9X100
Brand	CuTex
Roll size	3.9′ × 82′
Linear coverage	82 feet per roll
Construction	Copper sheet mechanically encapsulated between two high-strength geotextiles
Mode of action	Physical barrier plus Cu2+ ion release
Permeability	Permeable geocomposite
Zone of inhibition	Approximately 1.5 cm
Order cutoff	Ships same day, M-F, on orders placed before 12:00 noon EST
Shipping	Free on every order

04 Where it goes

Where Copper Root Barrier Is Used

Wherever roots or invasive rhizomes threaten something expensive, across construction, highways, rail and water infrastructure.

Building foundations Utility infrastructure Invasive plant containment Japanese Knotweed control Highways & road verges Rail corridors Water infrastructure Retaining walls Paving & hard surfaces Drains & services Development & regeneration sites Tree root deflection

Permeable — water and air still move through the composite.
Minute copper release — effective without flooding the soil with metal.
Effects stay local to the zone of inhibition.

05 Independent testing

Assessed At The University Of Leeds

The Centre for Plant Sciences at the University of Leeds independently assessed CuTex as a root barrier to Japanese Knotweed and other invasive species. The research set out to answer three questions. In the studies below, “control” means the test run without CuTex in place.

CuTex copper composite root barrier showing the copper layer between geotextiles — The copper layer encapsulated between two geotextiles. Click to enlarge.

Does CuTex inhibit root growth? Yes.

Testing in sterile culture using Arabidopsis thaliana demonstrated the zone of inhibition: roots grew toward the zone, then ceased at approximately 1.5 cm from the composite. Even when seedlings were established at different distances, all roots stopped at that zone — and seedlings trying to establish inside it failed to do so.

Does effectiveness increase with time? Yes.

Because Cu2+ ions diffuse into the soil, the barrier was expected to strengthen rather than fade. CuTex pre-incubated in agar media for four weeks produced a much stronger and larger zone of inhibition, abolishing the growth of seeds sown afterward.

Is CuTex safe? Yes.

Bio-safety was assessed by measuring overall plant health and growth. While CuTex prevents plants growing through the composite and within the zone of inhibition, the effects were shown to be relatively localized — it was not shown to negatively affect the biomass of surrounding plants.

The demonstration test: an upper layer of vermiculite over a lower compost layer, separated by CuTex. Vermiculite carries no nutrients, so long-term growth and survival depended entirely on roots getting through the barrier. The experiment ran across a number of species, including Japanese Knotweed, with CuTex assessed against a control fabric.

06 The problem it was built for

Japanese Knotweed

Japanese Knotweed is a strong-growing herbaceous plant native to Japan, Taiwan, China and the Korean peninsula, introduced to Europe in the mid-19th century as an ornamental. It thrived, and is now classified as an aggressive weed species with a significant negative impact wherever it occurs.

The damage is structural, not cosmetic. Its stout rhizomes push through asphalt, building foundations, cracks in concrete, retaining walls and even drains. It out-competes other species, disrupting landscaping programs; it accumulates litter in dense thickets that encourage vermin; and it raises building maintenance costs. It can block the migration of native plants and animals, disturbing local ecosystems, and it can obscure railway signals and road signs or create trip hazards in paving.

The consequences follow the plant. Contaminated soil must be treated as controlled waste. Beyond remediation cost, an infestation can lead to prosecution or compensation claims — particularly from neighboring sites — alongside physical damage to buildings and hard surfaces, and environmental harm from repeated herbicide applications. Containing it at the boundary is considerably cheaper than any of that.

07 Other root barriers

Choosing A Root Barrier

Copper composite is the option for aggressive invasive species and structural protection. For other jobs, a mechanical barrier may be all that is required.

Tree root barrier panels

Rigid ribbed panels that redirect roots downward and away from sidewalks, curbs, foundations and buried services — a mechanical barrier, no chemistry. Panel heights from 12″ to 48″.

View Tree Root Barrier

Bamboo barrier

Heavy HDPE rhizome barrier in 40, 60 and 80 mil, for containing running bamboo along a boundary or bed edge.

View Bamboo Barrier

Root control fabric

The other chemical approach to root control — a geotextile with time-release nodules that inhibit root growth at the barrier.

View Root Control Fabric

08 Free shipping, every order

Shipping And Volume Orders

Free shipping on every order at Landscape Discount. Rolls typically ship the same day, Monday through Friday, on orders placed before 12:00 noon EST.

Protecting a large site? Orders totaling over $10,000 qualify for volume pricing. Call (800) 524-4161 or submit a product quote request and we will put together written volume pricing for your project.

09 Common questions

Copper Root Barrier FAQs

How does a copper root barrier stop roots?

Two ways at once. The geotextile composite is a physical barrier, and the encapsulated copper sheet releases Cu2+ ions that create a localized zone of inhibition around it. Root tips approaching that zone undergo a progressive collapse — the meristem dies off and the cells above it differentiate — so roots stop before they reach the sheet.

How close do roots get?

In sterile culture testing, roots ceased at approximately 1.5 cm from the composite. Seedlings established at various distances all stopped at that zone, and seedlings attempting to establish within it failed.

Does it weaken over time?

Testing indicated the opposite. Because Cu2+ ions diffuse into the surrounding soil, the chemical barrier builds outward from the composite. CuTex pre-incubated for four weeks produced a stronger and larger zone of inhibition than freshly placed material.

Is the copper safe for surrounding plants?

The release is minute and the effects are localized. Bio-safety testing assessed overall plant health and growth, and while plants cannot grow through the composite or within the zone of inhibition, CuTex was not shown to negatively affect the biomass of surrounding plants.

Will it stop Japanese Knotweed?

Japanese Knotweed was one of the species included in the University of Leeds assessment, in a test where survival depended on roots penetrating the barrier. CuTex is used specifically for the risk Knotweed poses to utility infrastructure and foundations across construction, highways, rail and water.

Is it permeable?

Yes — it is a permeable geocomposite, so water and air still pass through rather than being dammed on one side of the barrier.

How much does a roll cover?

Each roll is 3.9′ wide by 82′ long, giving 82 linear feet of barrier. Allow for overlaps at joints when calculating a run.

How much does shipping cost?

Shipping is free on every order at Landscape Discount, with same-day dispatch Monday to Friday on orders placed before 12:00 noon EST.

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