Why Airtight Matters

When we talk about building better at Top Notch Contracting, one of the first things we focus on is airtightness. It’s a fundamental part of creating homes that perform well, feel comfortable, and stand the test of time.

In a typical home, uncontrolled air movement is one of the biggest causes of energy waste and long-term durability issues. Tiny gaps in the building envelope act like chimneys — pulling warm air out in winter, and letting hot, humid air in during summer. Over time, this doesn’t just increase your energy bills — it can introduce moisture that leads to mold, rot, and structural damage.

By building an airtight envelope, we control where air moves and how the home “breathes.” It allows us to precisely manage energy flow and indoor air quality using dedicated mechanical ventilation — which means better health outcomes for you and your family.

Airtightness also plays a huge role in comfort. Drafts disappear. Temperature is consistent room to room. Outside noise is dramatically reduced. And when combined with excellent insulation and smart ventilation systems, the result is a home that performs far beyond what typical construction can deliver.

At Top Notch, we use industry-leading materials — including SIGA membranes and tapes — and verify results with blower door testing. We believe every home should deliver airtight performance, whether we’re building to Passive House standards or simply exceeding modern building codes.