If there’s one topic that consistently trips up both homeowners and commercial clients, it’s the difference between ventilation and draughts. The two get tangled together in everyday language, but in building performance they couldn’t be more different. Understanding this distinction is essential - whether you’re planning a deep retrofit, upgrading a commercial space, or simply trying to create a healthier, more comfortable environment.

When it comes to making your home energy-efficient and comfortable, airtightness plays a crucial role. Air leaks can cause drafts, increase heating and cooling costs, and even lead to moisture problems. But how do you know if your home is truly airtight? That’s where blower door tests come in. This method provides a clear, reliable way to measure how well your home holds air, helping you identify leaks and improve your living space.

This guide provides a clear overview of the EnerPHit retrofitting process, highlighting the benefits and considerations involved.