Passivhaus

Passivhaus airtightness, delivered as a liquid. Passivhaus certification demands an air test of 0.6 air changes per hour or better — the single hardest number on the compliance sheet. Our liquid-applied membranes were developed for exactly that job, and they’re Passivhaus certified to prove it.

Why liquid airtightness for Passivhaus?

Sheet membranes fail at the details — laps, staples, tears, junctions. Passive Purple sprays or rollers on as one continuous airtight vapour control layer that flows around penetrations, junctions and awkward geometry, with IM Fleece Tape and Passivhaus airtight sealant completing the system at frames and joints. It works on blockwork, timber frame, ICF, steel and retrofit — one system for every build method.

Proven on real Passivhaus projects

The air test doesn’t lie: 0.078 ACH at McLaughlin & Harvey’s £44m Passivhaus school in Edinburgh — one of the lowest results ever recorded in the UK. 0.04 ACH at Oxford University’s Passivhaus-standard Collections Storage Facility. 0.03 ACH at Everton Heath Primary School. Browse the case study library for the full stories.

And if your project can’t afford to miss its target, our guaranteed 0.6 ACH or lower supply-and-install service puts our name on your air test result. Send us your drawings and we’ll mark up the airtight line for free.

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Passivhaus standards

his performance-based energy standard has been around for decades,
although it’s been thrust into the zeitgeist more recently as a result
of global commitments to the environment. It hosts a number of benefits such as improved air quality, thermal comfort, self-maintained moisture and humidity levels, increased space and increased daylight.

Although marketers of this concept often point to high-end projects to show off the efficiency of the Passivhaus strategy, the reality is that all builders can benefit from the Passivhaus standards. You don’t have to be “high-end” to be eco-conscious and build smarter buildings.

Our

Sectors

Our breadth of knowledge and experience means we are well-placed to deliver exceptional eco-conscious products suitable for a variety of applications directly to you.

Self Build

Commercial Conversions

Retrofit / Heritage

Airtight liquid vapour control

Passive Haus Design

Passive Haus design solutions are relatively simple to implement, shown in our gallery here. This includes installing proper windows, proper orientation and adopting heat recovery ventilation. Intelligent Membranes CEO, Adam White has installed Passive Haus design into a number of buildings. With all of the powerful elements, it was found that a house with Passive Haus design elements uses 90% less energy than a typical home.

Passive Haus design focuses on heating and cooling your home by using the own energy produced by the people inside the house. If you’re a big family, you will be amazed at the amount of energy that can be generated from your own bodies.

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