Passive House

The MBC Passive House Wall System


Passive Wall | MBC Timber Frame

The MBC Passive Wall system delivers a U-Value of 0.12W/m2K and is designed to perform to its optimum level when used in tandem with our Passive Foundation system. Intelligent design of the twin wall and foundation junction provides a break free, continuous barrier that essentially envelops the structure in a thick layer of insulation. 


Passive Wall Structure

The Passive Wall structure consists of a 300mm Twin Stud Frame, faced with 12.5mm Pro Passive airtight board internally, and 12.5mm medivent board externally. Both sheathing boards not only encase the timber frame and insulation, but also provide additional rigidity and strength to the overall structure.

A breather membrane is secured to the medivent boarding, while the internal 12.5mm Pro Passive airtight board is sealed with airtight tape at junctions, ensuring the house is completely airtight and draught free. 35mm timber battens are fixed to the Pro Passive board to create a service cavity in which electrics and plumbing services can be fitted. To complete the Passive Wall, high density Cellulose Insulation is pressure pumped into the passive wall cavity between the timber studs.

MBC Passive Wall Benefits

  • Significant energy savings, up to 90%
  • Delivers extremely low U-Value, 0.12W/m2K
  • Eliminates the need for a complex heating system
  • Manufactured off-site, in controlled conditions, ensuring highest quality standards
  • Airtight system eliminates draughts, resulting in minimal energy consumption
  • Extremely quick to erect, lowering labour & machinery costs
  • Suitable for all building designs and layouts
  • Precision engineered to meet all UK building regulations

Discuss your project with us

MBC specialise in the production of Timber Frame Passive House Buildings and High Thermal Efficiency Timber Frame Houses throughout the UK, Fulfil your dream of a self built home and benefit from huge energy savings and reduce their heating demands by up to 90%. 

Passive Builds

Passive Builds

Precisely engineered Passive solutions from MBC Timber Frame requiring 90% less energy for space heating and cooling.

Near Passive

Near Passive Builds

MBC Timber Frame’s “optional levels of insulation” applied to a 140mm stud frame. 3 great options delivery differing U-Values.

Passive Foundation

Passive Foundations

The MBC Passive Foundation system, suitable for both Passive and Standard timber frame projects.


Truss and Joists

Metal web Joists and Roof Trusses available on a supply only basis for traditional build projects.

A super insulated, timber frame house, providing exceptional energy efficiency for your new home, using the best timber available

Designed and engineered in accordance with current building regulations, perfect for you self builders

Manufactured in a controlled factory environment, ensuring superior quality craftsmanship

An affordable, competitively priced building option using our timber frame kits creating luxurious living space

Erected on site at an unparalleled rate when compared to conventional block construction

An environmentally conscious and forward thinking sustainable approach for your new dream home

Get in touch with MBC Timber Frame

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