• Skip to primary navigation
  • Skip to main content
  • Skip to footer

Efficiency Matrix

Efficiency Matrix Webshop
  • Our Products
    • Downlight Mitt Cover
    • Loft Mitt
    • Speaker Mitt
    • Efficiency Window & Door Seal
    • Small Basic Mitt for Fire Rating Spitfires and Sensors
  • Commercial & Residential Air Tightness
  • ecoCOOL tips
  • Product Support
  • Calculators & Tables
  • Our Videos
  • Contact
    • Our Team
    • Contact
    • Air Tightness Testing Services
    • Vision & Mission
    • Employment

R-Value, Wind, and Air flow Imperial to Metric Converter

R-Value, Wind, and Air flow Imperial to Metric Converter

R-Value, Wind Speed/Pressure and permeability rate values can get really confusing with imperial and metric versions, so we thought we would dedicate some easy to use calculators to help people make these calculations. Enjoy…

Enclosed are some Calculators that may be very handy to some, researching air-tightness of commercial and residential buildings around the world. Converting a permeability rate in the United States of America so that the rest of the world can understand it, and vice versa.

Fill in any value in each table, and the calculated equivalent will automatically be populated in above or below fields.

Calculation converting permeability rate CFM/ft2 to m3/h/m2


 

Insulation R-Value Conversions, Imperial R-value is very very different to Metric R-values. If you come across any tables in the US, sharing R-value performance of materials, use this calculator to convert them to a more recognisable value.

Calculation converting R-value Metric to Imperial


 

Wind speed calculation with induced pressure calculation. This can be really helpful when understanding the average overall pressure that might be affecting a building in a particular area by using weather bureau data. Windspeed/Pressure (Pa) induced on building facades, on wind experienced on a day or via an average. ACH/Permeability rate @ an average induced pressure(pa) designated as ambient. Use this calculator to work out what the ambient pressure may be, using wind speed values.

Wind Effect Diagram

Wind speed conversion calculator





This calculator does not take into account form factor for the shape of the building.

 

Feel free to contact us if you have any questions about these calculators, or if you have any ideas on other calculators that may be useful to you. Just click here…

You Might Also Like...

No Gap between air barrier and insulationBuilding Material R-Values facade Permeability CalculatorPressure Flow Conversion Calculator Wind Effect DiagramEM0017 – BCA and Air Tightness Modelling Commercial Air TightnessEnergy Modelling and Building Air Leakage in Australia

Footer

Related Business

  • Air Barrier Commercial
  • Air Barrier Tech
  • ecoEVOdesigns
  • ecoServerRoom
  • Energy Leaks
Buy Tight House

Buy our products from our Tight House Webshop now!

Lighting Partners

  • ANL Lighting
  • Brightgreen
  • Crompton Lighting
  • iGlobe
  • MELEC
  • Sylvania Lighting
  • UGE Lighting

Like us on Social media

TwitterFacebookLinkedinYoutube

Links

  • Bugs vs building science
  • How passing wind in your house can cost you money
  • Low Down on Downlights
  • Tighten up the regulation to tighten up our homes
  • Why we should change our building air tightness metrics

Copyright © 2023 · Executive Pro on Genesis Framework · WordPress · Log in