Moisture & condensation
Why is my house still damp when I have a ventilation system?
Ventilation can help remove moisture, but a system can only work when airflow, controls, moisture sources and the building are working together.
Read the guide →Sterling ventilation guides
Home ventilation guides for Auckland homes
Straightforward explanations of ventilation, moisture control, system types and common problems.
Knowledge centre
Practical answers about home ventilation.
These guides explain common ventilation and indoor-air-quality questions in plain language, with a focus on how systems behave in real homes.
System types
ERV vs HRV: what is the difference?
Understand the difference between heat recovery ventilation and energy recovery ventilation, and why system selection depends on the building and moisture loads.
Read the guide →Extraction
Why wet-zone extraction needs careful ventilation design
Bathrooms and kitchens create concentrated moisture and contaminants. Learn why direct extraction and whole-home recovery ventilation need to be considered separately.
Read the guide →
Need help with an existing system?
Start with the actual problem.
If your home is still damp, your airflow seems low, or a ventilation system is noisy or not operating correctly, the right answer may be an assessment rather than simply replacing equipment.
Request an assessment