About Our Products and Services

Passive Purple offer the complete airtightness package of supply and install of Passive Purple Liquid Vapour Control Membrane. We can work with you to design your airtightness details and get air tests to Passivhaus standards of 0.6 ach or lower. We also have our own in-house Certified Passivhaus consultants on hand for the more complex projects.

Passive Purple is unlike any Vapour Control membrane you will come across and it needs no staples or tapes, unlike other brands of paper membranes. Passive Purple adheres to almost any surface and is already being using on large scale timber frame to multi storey concrete framed buildings.

Passive Purple can also offer training and advice for people who want to install Passive Purple them selves, supplying the whole of the UK. So whether you would like the project installed by Passive Purple or you would like to offer your clients the best Vapour Control Membrane on the market we have the right solution for you.

There is no nasty's in Passive Purple we are VOC Free/M1 Class and are also a certified Radon Barrier to keep the nasty's out.

  • Part of White Group

    Proud to be a sister company of White Haus Bespoke Timber Frame and Whites carpentry

  • Approved Installers

    Approved installers through approved certificate training

  • Nationwide Service

    Give your project the personal touch with our family run business

  • Family Run Business

    Give your project the personal touch with our family run business

Burning questions? We've got answers.

The liquid version has no fibres it can be applied in a single coat on less porous and smoother substrates and two coats for more porous and rougher surfaces unlike the brush version two coats can be applied quickly around 10 minutes between coats.

With the fibre reinforced version applying a second cost before the first is dry could lead to damage caused by the brush creating gaps or breaks in the original seal.

No there is a white version

Using the sprayer around 300 linear metres a day.

Pretty much anything from paint to plaster, render or dry lining.


Our Credentials

We have extensive training and have been certified by leading industry bodies. You are in the safest possible hands with the team at Passive Purple.