Who We Are
About Intelligent Membranes
Building Airtight Futures
At Intelligent Membranes, we believe airtightness is the foundation of high-performance, sustainable buildings. From new builds to retrofit projects, we provide the world’s most advanced liquid-applied airtight membranes, vapour control layers, and weatherproof coatings — engineered to deliver Passive House standards, Net Zero goals, and healthier indoor environments for every type of construction.
Founded on innovation and sustainability, our mission is simple: make buildings better, stronger, and future-proof for generations to come.
Who We Are
We’re not just a manufacturer — we’re a team of building scientists, Passive House consultants, and airtightness installers with decades of hands-on construction experience. Every Intelligent Membranes product is created by people who understand the real challenges on site — and designed to solve them quickly, reliably, and sustainably.
From our headquarters in Cambridge, UK, we’ve grown into a global leader in liquid-applied airtight membranes, trusted by contractors, architects, and developers in projects ranging from hospitals, schools, and colleges to homes and commercial buildings.
What We Stand For
Passive House Performance for Every Build
Whether it’s a cutting-edge new build or a sensitive retrofit, our systems achieve airtightness levels that meet and exceed Passivhaus standards.
Net Zero Made Practical
Our vapour-open and vapour-closed airtight solutions cut carbon emissions by improving building fabric performance — helping projects hit Net Zero targets without compromise.
Innovation You Can Trust
From the world’s first fire-rated airtight paint to our pioneering spray- and brush-applied vapour control systems, we deliver solutions that outperform outdated tapes and membranes.
Real-World Reliability
Our products are VOC-free, cost-effective, and fast to apply, working in all conditions and proven on some of the toughest projects worldwide.
Why It Matters
Air leakage isn’t just wasted energy — it means higher bills, poor comfort, damp, and mould risks. By making airtightness simple and reliable, we give builders and developers the ability to deliver healthier, longer-lasting, and more sustainable buildings.
From one-off homes to major public projects, Intelligent Membranes provides the tools to ensure building fabric integrity — for now and the future.
Our Promise
At Intelligent Membranes, we’re committed to:
-
Pioneering liquid-applied airtight solutions that replace outdated methods.
-
Helping every customer — from contractors to architects — deliver projects that are airtight, energy-efficient, and future-proof.
-
Supporting the global transition to sustainable, low-carbon construction.
Products & Projects
Our airtightness and vapour control systems have been successfully applied across:
-
Timber frame builds
-
Traditional masonry construction
-
Large-scale retrofit projects
We’re proud to have played a role in so many eco-conscious projects, supporting builders, architects, and developers in achieving the highest standards of airtightness, sustainability, and energy efficiency.
Expert Support
To support your project, we offer direct access to our in-house Passive House consultants. From detailing and specification to on-site guidance, our team ensures you know exactly where and how to apply our solutions for maximum impact.
If you’ve ever wondered:
-
What does a vapour control layer do?
-
Do you need a vapour control layer on a cold roof?
-
What is the vapour control layer in a loft?
We’ve got the answers.
📧 Get in touch today: info@intelligentmembranes.com
Intelligent Membranes
It’s time to take the next step.
It’s time to be a Net-Zero HERO.
Passive Purple Editions
The same proven Intelligent Membranes formula — available in multiple colours, with dedicated internal vapour-closed airtight membranes and external vapour-open breathable coatings. Perfect for achieving airtightness, weather protection, and long-lasting performance on any build.
-
InternalColours
AvailablePassive Purple – Airtight Paint (11.4kg) – Spray / Roller Applied
Spray/Roll Enquire Now Below Add to basket -
Internal
Colours
Available20%Off!Passive Purple Brush – Handy Pack (3.7kg) – Vapour Control Paint – Brush Applied
$218.05 Add to basket -
Internal
Colours
Available33%Off!Passive Purple Brush – Airtight Paint 6.9KG
Brush $218.05 Add to basket
Our Approach – Building Airtight, Sustainable Futures
At Intelligent Membranes, we take a unique approach to airtightness and vapour control solutions. For us, it’s not just about manufacturing world-class airtight paints and membranes — it’s about being part of the global drive towards Net Zero and climate-resilient construction.
Our products are designed for new builds, retrofits, Passivhaus projects, and large-scale developments, helping to cut carbon emissions, improve energy efficiency, and guarantee long-lasting building performance. But our commitment doesn’t stop at the can. Across our business, we’ve implemented eco-conscious practices — from running electric vehicles to sustainable packaging — ensuring that every stage of our process supports a greener future.
Plant a Tree – One Sale, One Tree
The world needs more trees. That’s why, for every website sale, we plant a tree on our own 10 acres of land. It’s our way of giving back — improving air quality, enhancing biodiversity, and creating a legacy of cleaner, healthier environments for future generations.
Every litre of Passive Purple, Airtight White, or Intelligent Protect you buy isn’t just protecting buildings — it’s helping protect the planet.
👉 Learn more about our Plant a Tree pledge and how every project you build with Intelligent Membranes helps build a better world.
🌍 Join us in making every building airtight, energy efficient, and climate-ready.
Read more about our founders, brothers Adam and Alex White and their commitment to combining innovative building technologies with eco-conscious practices.
Meet The Founders
-
Adam White
CEO & Founder
Adam White – Founder, Innovator & Passivhaus Consultant
Adam White, the Owner and Creator of Intelligent Membranes, is a driving force in the future of sustainable construction. A passionate Passivhaus Consultant with over two decades of industry experience, Adam doesn’t just talk about airtightness and net zero — he lives and breathes it.
Through his suite of companies — including Intelligent Membranes and White Haus Bespoke Timber Frame — Adam has been at the forefront of revolutionising the way buildings are designed, sealed, and protected. From world-first liquid-applied airtight paints to complete building envelope solutions, his innovations are setting new global standards in airtightness, energy efficiency, and Passivhaus design.
Adam’s mission is clear: to transform construction into a force for good — creating buildings that are smoke-tight, vapour-open, fire-resistant, and truly fit for a Net Zero future. Whether it’s advising on retrofits, pioneering new products, or championing the next generation of Passivhaus projects, Adam’s influence is shaping the future of building science across the UK and beyond.
💡 “Every building, new or old, deserves to be airtight, energy efficient, and ready for the challenges of tomorrow.” – Adam White
-
Alex White
MD & Founder
Alex White – Managing Director, Airtightness Specialist & UK’s First PHIUS Tradesman
Alex White, Managing Director of Intelligent Membranes, is one of the UK’s leading airtightness experts and the UK’s first certified PHIUS Tradesman. Having started his career developing environmentally friendly timber framing systems, Alex quickly became recognised for his hands-on expertise and precision in delivering airtightness on-site.
A true master installer, Alex has built a reputation for tackling the toughest building envelope challenges. From large-scale commercial projects to intricate retrofits, his ability to combine technical know-how with practical application ensures builders hit airtightness targets with confidence.
Passionate, practical, and always pushing the limits of what’s possible, Alex is at the heart of Intelligent Membranes’ mission to transform how airtightness is delivered on real building sites.
💡 “Airtightness is where design meets reality. My job is to make sure it’s done right, every single time.” – Alex White
-
Loz Lock
Social Media Coordinator
Content creator with Passive Purple running through her veins, Loz Lock knows the Intelligent Membranes brand like the back of her hand. From promoting products on social media to editing the latest version of the company brochure, she’s net zero all the way.

Introducing the World’s Most Airtight Bar
The world’s very first airtight pub is now open for business in Cambridgeshire. Yep, we made a bar.
View The Bar-
Stay Updated With Our News & Insights
Our blog section will detail the most update to date information on current and future eco-continuous building solutions.
View Our Blog -
“Building a Sustainable Hospital: Passive Purple Airtight Membrane Meets MMC Precision”
Posted on 20th August 2025
Building the Future of Healthcare: Passive Purple Airtightness for a Modular New-Build...
Read More -
“Why IM Fleece Airtight Tape is the Best Choice for Retrofit Airtightness, Window Sealing, and Passivhaus Projects”
Posted on 19th August 2025
Why IM Fleece Airtight Tape is the Installer’s Secret Weapon for Airtightness...
Read More