To become full accredited as an ATTMA Level 1 tester through a course in Australia or New Zealand, your must complete the following steps in any order.
Blower door tests must be done on buildings not previously submitted to ATTMA Lodgement, including one done by on-site envelope calculations. Tests must be filed with ATTMA Lodgement.
Steps 1-3 may be undertaken remotely and if completed successfuly will result in listing as an ATTMA Level 1 tester with ‘provisional’ status. The last step may be performed on the Exam Day at the training venue, or through separate arrangement. Successful completion of all four steps will result in listing as a ‘current’ ATTMA Level 1 tester.
The order of the steps may be changed to suit an individuals specific needs and schedule, however they must all be complted to achieve “current” status on the ATTMA Member Listings.
More details about each assessment step and links to more information are below. For a sense of what level of knowledge and proficiency in maths is helpful before sitting this course, please see “ATTMA Level 1 Pre-Qualification Sample Questions“
The exam includes:
Principles relating to air leakage in buildings
Review of current and relevant regulations relating to air tightness in Australia or New Zealand
AS/NZS ISO 9972:2015 and how it is used to comply with ATTMA requirements
How to assess test data for compliance with ATTMA and AS/NZS ISO 9972:2015 requirements
Conversion between units of measure (e.g. L/s, m3/hr, permeability/ACH, etc.)
Calculation of envelope areas off a set of plans provided during the test
Tests must include:
Calculations of envelope area (calculations of volume are additionally helpful but not required). Calculations of at least one building must be measured manually on-site (not from plans). Envelope calculations of other two buildings may be either manual or off building plans.
Test results must be expressed in units of permeability, airflow at 50 Pascals per unit of building envelope surface area (i.e. m3·hr-1·m-2 @ 50Pa). Calculations of air change rate (e.g. ACH50 or n50) are optional but not required.
Tests must meet the requirements of standard AS/NZS ISO 9972:2015 or equivalent for this review.
These tests and calculations must be conducted on buildings not already in the Lodgement database.
Guidance on calculating envelope areas is available from ATTMA TSL1, TSL2, or TSL4, available from the ATTMA website.
You must be able to conduct a blower door test without the aid of fully automated software. That is, you must be able to manually control a system to perform a multi-point test, including steps such as recording baseline environmental conditions and zero-flow pressure differences; recording a series of induced pressure differences and airflow readings; and recording post-test zero-flow and environmental readings.
Knowing how to push “start” on an automated blower door test software will not be adequate to pass this assessment.
The manual test process will be reviewed during the course, and basic test form handouts will be provided during the course and during the exam.
A sample manual test data collection form is located here.
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