Free tutorials — energy modelling
& airtightness testing

Practical video tutorials covering building envelope calculations, blower door test preparation, and Passive House volume methodology. Free to watch — no sign-up required.

Free · No Sign-Up SketchUp Blower Door Testing Passive House Building Envelopes

Before You Start

Tools and references you may need

Some tutorials require specific software or reference documents. Everything listed below is either free or available for download — get set up before you start.

01
SketchUp Free version ↗ Used throughout the envelope and volume calculation tutorials. The free browser-based version covers everything you need.
02
Adobe Acrobat or PDF Reader with Measurement Tools For taking measurements directly from digital drawings — useful when working from architectural PDFs before building a SketchUp model.
03
Excel or Spreadsheet Software For organising and calculating envelope areas and test data. Google Sheets, LibreOffice Calc, or Numbers all work.
04
Retrotec Software Fantestic ↗ For conducting blower door tests and analysing airtightness results. Used in the blower door testing tutorials.
05
TECLOG or TECTITE Tec Software ↗ Optional — alternative blower door testing software depending on your equipment. Download from Tec Software.
06
ISO 9972 / AS/NZS 9972 Standards Documentation Reference standard for airtightness testing methodology and reporting. Useful to have open alongside the testing tutorials.
07
ATTMA Technical Standards (TSL1, TSL2, TSL4) For reference to ATTMA testing requirements and compliance during calculations. Available from bcta.group/attma/.
08
Passive House Certification Guideline PHI Building Criteria for reference during Passive House volume and envelope tutorials. Available from passivehouse.com.

Skip to videos

- blowerdoor testing
• 08/10/2024
Building Volume for Passive House using Sketchup

Learn how to calculate building volume in SketchUp for Passive House projects. In this tutorial, I’ll guide you step-by-step through creating accurate 3D models to ensure precise volume calculations, crucial for Passive House certification.
- blowerdoor testing
• 08/10/2024
Sketchup basic tools and navigation

In this quick tutorial, I'll show you how to navigate SketchUp and create accurate building geometry for blower door envelope calculations. Perfect for beginners looking to streamline their process!
- blowerdoor testing
• 07/10/2024
Building Envelope calculations for Blower Door Testing using Sketchup

Master the process of calculating building envelope areas for blower door testing using SketchUp and .DWG files. This tutorial walks you through setting up a simple reference building while ensuring compliance with ATTMA Level and ISO/AS/NZS 9972 standards. Whether you're prepping for airtightness testing or refining your skills in building assessments, this guide provides clear steps to streamline your workflow.