We are the ONLY company in the UK who can offer a spray applied BBA approved liquid vapour control membrane that can get GUARANTEED Passivhaus air tight results on any form of construction from timbre frame to multi storey tower blocks in concrete. No Nasty's Here We know what you are thinking "I bet its full of nasty VOC chemicals" well Passive Purple is a VOC free ,M1 class and is soon to have its fire rating that's far surpasses that of any membrane on the market . Passive Purple is a water based polymer , with the brush version having reinforcing fibres in to bridge them difficult connection details. The great thing about Passive Purple is that is can be used in certain difficult locations as well as full envelopment covering. It all depends on the score your trying to achieve. When we give advice you can be safe with the knowledge that Passive Purple is Part of the Whites Carpentry Group which includes , White Haus Bespoke Timber Frame, White Air, White Haus Bespoke Windows and Passive Schools. So our staff know the construction industry inside out. Passive purple can be used as an airtight membrane on any form of construction to get extremely low air tests that match the Passivhaus standards. Using an airless spray machine we can come and install 300 plus m2 of membrane a day with a single operative. We also know that Purple isn't every ones cup of tea and as our product can be left on show in places such as car parks and commercial stair wells we have got Airtight White , with all the same great features as the Passive Purple .