Air tightness

Air tightness Cathal Mac Séalaigh

Areas to be looked at ,[object Object],[object Object],[object Object],[object Object],[object Object]

What is air tightness? ,[object Object],[object Object],[object Object],[object Object]

Building Regulations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Building Regulations ,[object Object],[object Object],[object Object]

Building Regulations ,[object Object],[object Object]

Number of Tests At least 2% of units At least 5% of units, until 5 successful consecutive tests are achieved, 2% thereafter ,[object Object],[object Object],[object Object],At least 5% of the dwelling type >40 but ≤100 2 tests >4 but ≤40 1 test 4 or less Number of Tests Number of Units

How is it measured? ,[object Object],[object Object]

How is it measured ,[object Object],[object Object],[object Object],[object Object],[object Object]

How is it measured? ,[object Object],[object Object],[object Object]

Common air leakage paths ,[object Object],[object Object]

Common air leakage paths ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Why is it important? ,[object Object],[object Object],[object Object],[object Object]

Impact on the BER ,[object Object],[object Object],[object Object]

Air tightness

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Air tightness