A Passive House or Passivhaus is a precisely engineered and detailed structure that is highly insulated, cold bridge free and requires less energy demand for space heating and cooling. With hundreds of eco builds successfully completed, we have developed a solid reputation as one of the leading Passive House construction contractors in the UK.
Building a Passive House does not cost extra in the long term as there is no need to install a complex heating and cooling system. Finances saved are invested into essential Passive House Elements, the cost of which is quickly recouped within a few years of building completion.
Our extensive knowledge and expertise in Passivehouse and Eco-friendly building enable us to deliver innovative, energy-efficient, and environmentally friendly structures that exceed the highest standards in the industry Based in Gloucestershire, UK.
MBC’s passive foundation
U-Values currently available at 0.105W/m2K. is a PassiveHaus certified system, designed to thermally encase the foundation in high performance expanded polystyrene (EPS)… ensuring a quality passive house standard
Delivering a U-Value of 0.12W/m2K and designed to perform to its optimum level when used in tandem with our Passive Foundation system
400mm thickness of Cellulose Roof Insulation is precision fitted to overlap with the 300mm Cellulose Insulation of the Passive Twin Wall System
Air tightness is achieved with the careful application of an internal airtight membrane sheeting, which overlaps at joints and junctions, and is sealed with airtight tape…
View a detailed cross-section diagram of our Passive House Twin Wall system…
Information about the high levels of insulation “thermal envelope” and “thermal bridging”…
Airtight Home Standards
Information about the Passive House Blower Door Test…
Understanding “MVHR” – Mechanical Ventilation and Heat Recovery…
Collaborating with MBC Timber Frame on our Passivehaus project was a seamless experience from start to finish. Their expert team provided comprehensive support, allowing us to focus on other aspects of the build. MBC delivers top-tier turnkey solutions for home building, and we are extremely satisfied with the results. Would highly recommend MBC to anyone embarking on a new home project.
Charlotte & Wayne
Dealing with MBC has been a real pleasure from start to finish. “Nothing’s a problem!” seems to be their motto. Lots of help and useful suggestions when discussing the plans, to the standard of workmanship and helpful attitude of the site team. The MBC Foundation and build part was the most stress free part of the whole build, fantastic, thank you.
Jan and I are delighted with the house and with everyone from MBC that we’ve worked with, so we wouldn’t hesitate to recommend you guys to anyone who is considering doing a self build. The attitude and attention to detail of your guys ranks exceptional compared to most builders and tradespeople that we worked with. We both want to reiterate that we’re delighted by the house.
Terry and Jan Ellison
All opaque building components of the exterior envelope of the eco house must be very well-insulated. This means a heat transfer coefficient (U-value) of 0.15 W/(m²K) at the most, i.e. a maximum of 0.15 watts per degree of temperature difference and per square metre of exterior surface are lost.
Passive House Windows
In all of our eco builds, the window frames are well insulated and fitted with low-e glazings filled with argon or krypton to prevent heat transfer. This is achieved by a U-value of 0.80 W/(m²K) or less, with g-values around (g-value= total solar transmittance, proportion of the solar energy available for the room).
Passivhaus Ventilation Heat Recovery
An efficient ventilation system is key, allowing for a good air quality and being energy efficient. In a Passive House, heat from the exhaust air is transferred to the fresh air again by means of a heat exchanger.
Airtightness of the Eco House
Uncontrolled leakage through gaps must be smaller than 0.6 of the total house volume per hour during a pressure test at 50 Pascal (both pressurised and depressurised). This is the result of using the best Passive House Components.
Absence of Thermal Bridges
All edges, corners, connections and penetrations must be planned and executed with great care, so that thermal bridges can be avoided throughout our Passive Houses. Thermal bridges which cannot be avoided must be minimised as far as possible.
MBC Passive Foundation & Slab System
Our passive foundation and slab is a PassivHaus certified system, designed to thermally encase the foundation in high performance expanded polystyrene (EPS) insulation, which delivers the lowest U-Value currently available at 0.105W/m2K.
The MBC Passive House 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 & Slab system.
The MBC Passive House Roof system delivers a U-Value of 0.10W/m2K and is suitable for all roof designs (flat, pitch, barrel vault, etc), ensuring your desired eco building design remains unchanged.
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MBC Systems
