CUSTOM DESIGN PASSIVE TIMBER FRAME HOUSES - DESIGN & BUILD
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MBC Timberframe

Tel: 01452 346499

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  • Home
  • What we do
    • About Us
    • MBC Our Mission
    • Why Choose Us?
    • Contact Us
    • MBCTimberframe Build Locations
    • Privacy Policy
  • Passive House
    • Passive Foundation
    • Passive Wall
    • Passive Roof
    • Airtight System
    • Passive House Technical Detail
    • Thermal Envelope
    • Passive House Blower Door Test
    • Heat Recovery Ventilation
  • Projects
  • News
  • Testimonials
  • Timber Frame Houses
  • Advantages of Timber Frame
  • Roof Truss
  • Posi Joists

Passive House Blower Door Test

Blower Door System

At MBC we design for and test all our passive house builds for air-tightness using the blower door test. Passive House Air Tightness is measured in Air Changes Per Hour (AC/hr) allowing for 50Pa pressure difference between internal air and external air. An air permeability result of less than or equal to 0.6 AC/hr is required to satisfy Passive House Blower Door Test standards. 

How the Passive House Blower Door Test Works

This test method uses a pressurised calibrated gauge that measures the rate of airflow between building zones and internal and external faces. This is achieved by mechanically lowering the air pressure within a building in a controlled manner. The blower door fan essentially creates a vacuum effect, which forcibly draws de-pressurised air out of the building at a specific rate. Passive House Blower Door Test results greater than 0.6 AC/hr are typically as a result of an air leak that has breached the buildings airtight envelope. These leaks are identified by means of a simply smoke test, allowing air leaks to be mitigating quickly and retesting to be carried out.  

 

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MBC Timber Frame guarantee a top quality Passive Home built to surpass your expectations.

Contact us today to discuss how we can help you plan your Timber Frame build.

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  • Why choose us
  • What is Passive House?
  • Timber Frame Houses
  • Advantages of Timber Frame
  • Build Hub Forum
  • Passive House Blog
  • MBCTimberframe Build Locations
  • Self Build Mortgage
  • Download MBCTimberframe Brochure
MBC Timberframe
Phone:

01452 346499

Email: [email protected]
Contact Us

MBC Timber Frame guarantee a top quality Passive Home built to surpass your expectations.

Contact us today to discuss how we can help you plan your Timber Frame build.

contactus

Our Latest News
  • MBC feature very prominently in the Build IT magazine including this case study featuring an MBC Passive project.
    August 3, 2018
  • Join Us at Self Build & Design Show in Exeter 8-9 September 2018
    August 3, 2018
  • Join Us at The National Self Build & Renovation Show: 5th – 7th October 2018
    August 3, 2018
  • Finalist – Best Small New Housing Development
    August 30, 2017
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MBC Timberframe

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