Property Air Brick Requirement Assessment
Step 1. - Assess Underfloor Ventilation Area Requirement
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Overall Ground Floor Area (m2) Total External Wall Run (m) Ventilation Opening Area Required* = 0 mm2 |
Step 2. - Assess Area Provided by Existing Airbricks (Ref Data from BS493:1995 +A1:2010)
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Current Airbrick Dimension Type 1 : 1100 mm2 Quantity: Total Area = 0 mm2 |
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Current Airbrick Dimension Type 2 : 1100 mm2 Quantity: Total Area = 0 mm2 |
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Current Airbrick Dimension Type 3 : 1100 mm2 Quantity: Total Area = 0 mm2 |
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Total Existing Area = 0 mm2 |
Result:
Upgrade Required for Airbricks
Result:
Upgrade Not Required for Airbricks
Step 3. - Calculate Area for Upgrade
Underfloor Void Ventilation to be Upgraded as below:
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1290 mm2 Quantity: Total Area = 0 mm2 |
Result:
Upgrade Non-compliant - Please Recheck
Result:
Upgrade compliant
“Disclaimer: The ventilation calculator is intended for general informational purposes only, generating results based on user inputs, standard parameters, and assumptions. It is not a substitute for professional advice, engineering assessments, or site-specific considerations. For a more accurate ventilation assessment and proposal tailored to your property, we recommend using Retrofit Experts LTD's ventilation survey service. The creators of this calculator disclaim any liability for decisions or actions based on its output.”