The case for the Q-value.

Clients, designers and institutions are all calling for more airtight buildings. Do we need mandatory pressure tests backed up by compliance procedures in Part L, or simply the publication of good practice guidelines? A recent CIBSE workshop delivered some answers.

The world's leakiest buildings.


The solution to achieving airtightness in buildings.


How tight are America's houses?


Air exchange in rooms with tight window joinery.