There is a widespread assumption that leaks in the building fabric supply useful ventilation air. The building regulations count on it, and ask less of the installed ventilation as a result. But can we really rely on gaps and cracks to help ventilate our buildings?

Airtightness is critical in new buildings. Here’s how you can pass your airtightness test first time by planning for it from the start.

“What are the advantages of airtight buildings?” – a question that not only we at SIGA, but also you as a builder or architect have often been asked. We list the main reasons.