Building Envelope Sealing in Michigan

Building envelope sealing in Michigan is the whole-house approach to energy efficiency. Instead of addressing one area at a time — just the attic, just the crawl space, just the rim joist — we treat the entire thermal boundary as a single integrated system. This is how the most efficient luxury homes in Metro Detroit are built, and how the best-performing retrofits achieve Net-Zero-ready status. It's also the approach that delivers the most dramatic comfort improvements in older luxury homes where the owner has replaced windows, added new HVAC, and upgraded insulation but still can't figure out why certain rooms are cold or why the house feels drafty.

Our building envelope sealing service starts with a comprehensive diagnostic. We perform a blower door test to measure current air leakage rates (ACH50), then use thermal imaging and smoke pencils during the test to pinpoint every leak path — attic bypasses, rim joists, wall penetrations, recessed lights, chimney chases, plumbing chases, HVAC duct leakage, and window/door perimeters. The result is a detailed written report showing exactly where your home is losing energy.

Next, our SPFA-trained crews seal every identified leak using the right material for each application: closed-cell spray foam for rim joists and attic bypasses, open-cell foam for wall cavities where moisture isn't a concern, caulk and foam board for small penetrations, gaskets for window and door perimeters, and mastic for HVAC duct leakage. Every leak path is addressed as part of the coordinated project.

Finally, we perform a second blower door test to verify the result. Most of our luxury building envelope projects achieve 40–60% reduction in air leakage from pre-test to post-test, and we document the improvement with a written report. This is how serious energy retrofits are verified — not by guesswork, but by measured performance. The result is a home that's dramatically more comfortable, quieter, and cheaper to heat and cool.