At Olympic Surveyors, we understand that maintaining high air quality in your home is essential for both comfort and health. Proper ventilation plays a crucial role in:
By addressing these factors, we help create a healthier living environment, reducing risks like mould growth and condensation. Our advanced ventilation solutions are designed to improve your indoor air quality and enhance comfort throughout your home.
Building Regulations Overview
All building work in England must comply with the Building Act 1984 and Building Regulations 2010, which ensure safety, health, and welfare for occupants.
Approved Document F (2021) – Key Points:
Section 1.23:
Section 1.24:
Minimum whole dwelling ventilation must meet:
Ventilation in Existing Dwellings
Note: Reducing infiltration may unintentionally reduce indoor air quality below required standards.
What Is Air Leakage?
Air leakage refers to air moving in or out of a building, also known as air permeability or airtightness. High leakage can cause:
But a lack of fresh air can also impact internal air quality.
How Air Moves:
Pulse Air Permeability Testing
We use Pulse Testing Equipment—a portable system that measures air leakage at low pressure (4Pa).
This method is recognised under Part L1A Building Regulations and PAS 2035 retrofit standards.
Air Tightness Testing
Pulse testing shows air changes at normal living conditions, helping assess background ventilation and energy performance.
Fan Performance Testing
Two main test types:
Conditional Test:
Unconditional Test:
This is the preferred method used by surveyors for accurate performance results.
Humidity doesn't just cause mould—it can lead to more serious issues in under-ventilated homes.
Dust Mites and Health
Proper ventilation is essential for humidity control and health protection.
Data loggers help us monitor and understand internal conditions by:
When paired with surface temperature data loggers, they give a full picture of risk areas for mould and condensation.
Sick Building Syndrome (SBS)
SBS refers to general health symptoms people experience when spending time in poorly ventilated buildings. Common effects include:
Common Indoor Contaminants
Particulate Matter (PM):
Formaldehyde:
TVOC (Total Volatile Organic Compounds):
TVOC Exposure Guidelines (WHO):
Carbon Dioxide (CO₂):
Radon:
All of these factors show how poor ventilation can lead to poor health, especially in enclosed or poorly maintained buildings.
At Olympic Surveyors, our qualified Chartered Building Engineers use specialist equipment to:
Specialist Surveyors with expertise in cavity wall assessments.
Multi-award-winning PCA members , regulated by RICS.
State-of-the-art diagnostic tools ensuring accurate results.
Tailored remedial solutions for long-term property protection.
If you suspect wall tie failure or structural movement, contact Olympic Construction Ltd for a professional wall tie inspection.Early detection and expert remediation ensure the stability and longevity of your
