Barriers are flexible, high-performance membranes typically used in brownfield and redevelopment sites or sites with contaminated ground. We have a range of products including Japanese Knotweed Barriers, Hydrocarbon Barriers and Gas Membranes.

Japanese knotweed barrier

Japanese Knotweed barriers explained: Japanese knotweed can grow up to a rate of 10cm per day and because of this, it has been known to cause damage to both building structures and biodiversity.

It targets weak points in building structures such as cracks in stone and brickwork and then tries to grow through these. Japanese Knotweed also affects ecosystems by crowding out native vegetation and limiting plant and species diversity.

A Japanese Knotweed barrier is a flexible, reinforced membrane that protects structures and stops encroachment of knotweed roots.

It is often used in conjunction with other methods – such as herbicidal treatments, excavation, screening and sifting – to prevent the plant’s spread.

We specialise in Japanese Knotweed barrier consulting, assessment and supply. To find out more simply tell our specialist team about your next project. We’re here to help.

  • Protection of building structures
  • Contaminated sites

Hydrocarbon barrier

Hydrocarbon barriers explained: Hydrocarbon Barriers are flexible membranes designed to protect developments and installations from latent hydrocarbons.

They’re made of high-quality raw materials which give them high mechanical strength, excellent UV resistance and resistance to roots. They can also be easily installed without wrinkling.

Hydrocarbon barriers are made up of polyethylene macromolecules which provide superior resistance against many chemicals and are also environmentally safe.

They don’t contain any plasticizers, fillers, micro biocides, or other substances which could be leached out by substances in soil, water or produced by roots.

Therefore, Hydrocarbon barriers are an excellent choice for environmentally sensitive projects.

To find out more about Hydrocarbon barriers, simply tell our specialist team about your next project. We’re here to help.

  • Brownfield and redevelopment sites
  • Contaminated ground
  • Highway construction and associated surface drainage systems

Gas Membranes

Gas membranes explained: Gas Membranes are ultra-low permeability high-performance membranes for use in situations where resistance to Methane, Radon, CO² gases and Hydrocarbon vapours is required.

They’re generally used within construction applications, predominantly within the foundation design.

They also provide additional damp proofing protection and negate the need for a separate damp-proof membrane. 

The multi-layered, loose-laid reinforced membrane construction means they typically have excellent puncture and tear resistance.

To find out how Stratec gas membranes can help with your ground quality challenges, simply tell our specialist team about your next project. We’re here to help.

  • Foundations of buildings
  • Basements
  • Contaminated industrial sites

Go behind the scenes with Stratec

“The help and support I received was second to none…”

…with a large product range they were able to advise on materials to best fit my requirements … and get them to our remote site quickly”.

Seamus Farrell – Bam

Tell Us How We Can Help

It’s never too early to tell us about your ground quality challenges, we’ll be proud to use our four decades of expertise to propose the right technical solution. Questions? Just ask.

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Sam Brierley

Marketing Director

Businesses I have worked for

Midwest Contracting

Tower Group

Reflect Promotional Products

Acure Safety


Sam has been involved in over 6 SME’s since graduating in 2011, with a focus on creating effective marketing plans and ensuring the efficient carrying out of the plans to achieve the targets and goals consistently. Sam puts emphasis on being driven and results focused by eliminating and removing what holds us back so that results can be achieved.

Key Areas of Expertise

  • Marketing
  • Sales
  • Leadership

Giles Clarke

Managing Director

Businesses I have worked for

Quin Global

Vola Global

Orca Hygiene

Customers I have worked with

Howdens, Hafele, B&Q, Headlam Group, Norboard, Likewise, Balfour Beatty, Bam Construction, RJ Mcleod, I&H Brown, Cala Homes and many more


Giles has been working with SME’s since graduating from school. Working throughout different areas of the business from sales and marketing development, sales and commercial management, operations, manufacturing and R&D to continually develop the business, delivering growth and company sustainability. Putting emphasis on targets, goals, and direction, to deliver the company strategy and develop its people and systems.

Key Areas of Expertise

  • Business Planning
  • Business Growth