When people think about a comfortable home, they often imagine plush furniture, warm lighting, or beautiful finishes. But one of the most important — and least visible — contributors to comfort, health, and efficiency is airtightness.
At BPC, we’ve been perfecting airtight building envelopes for decades, long before it became an industry standard. Here’s why it matters so much — and how we achieve it.
Comfort Without Drafts — and Without Compromise
We’ve all experienced a drafty old house:
- Cold spots near windows
- Whistling air on a windy day
- Rooms that never feel quite right.
That’s not just inconvenient — it’s a constant reminder of energy slipping away.
Proper air sealing eliminates these drafts, delivering even temperatures and consistent comfort throughout the home, in every season. You don’t have to sacrifice beauty or openness to achieve this: with thoughtful design and precise construction, we create bright, airy, comfortable spaces without hidden weak points.
We achieve this by treating the building envelope as a continuous, unbroken barrier. Our team identifies and details a clear air control layer at the start of design, and we train every craftsperson to protect and maintain that layer throughout construction.
BPC’s Green Building Services use high-performance windows and doors with multi-point seals, tapes, membranes, and sealants at all transitions, and meticulous blower-door testing to catch and resolve leaks before completion.
Healthier Indoor Air — Because You Deserve to Breathe Better
Air leaks don’t just bring in unfiltered outside air; they also draw in allergens, pollutants, and moisture from wall cavities, attics, and crawl spaces — places you definitely don’t want to breathe from.
An Airtight Home allows us to:
- Take control of air ventilation, supplying fresh, filtered air at the right rate for your family’s health and well-being.
- Reduce Infiltration of outdoor pollutants and allergens, supporting a healthier environment for those with asthma, allergies, or sensitivities.
At BPC, we pair airtightness with properly designed mechanical ventilation systems — typically balanced energy recovery ventilators (ERVs) — that deliver a continuous supply of filtered outdoor air while exhausting stale air. Learn more about about ERVs here1. This controlled exchange ensures optimal air quality without the drafts, hot spots, or noise of older, leaky homes.
Efficiency That Pays Dividends — For You and the Planet
Leaky homes require more energy to heat and cool — meaning higher utility bills and a bigger carbon footprint. A well-sealed home keeps conditioned air where it belongs, using less energy to maintain comfort.
That translates to:
- Immediate energy savings
- Long-term resilience against rising energy costs
- A meaningful reduction in your home’s environmental impact
Why BPC?
1. Airtightness isn’t just about caulking and spray foam — it’s about systems thinking, precision, and care.
We’ve been pioneers in integrating high-performance European windows and doors, applying rigorous detailing, and using the best materials to deliver exceptional airtightness. We test every home we build, verifying performance with blower-door testing (learn more about that at Retrotec)2 and fine-tuning the details others overlook.
2. This isn’t just technical expertise — it’s a philosophy
We believe your home should be beautiful, healthy, durable, and efficient, for generations to come.
Airtightness — and the controlled, fresh air it enables — is the foundation that makes that possible. And at BPC, it’s something we’ve mastered.
