Tiny openings leak disproportionate energy. Backer rod, acoustic caulk, and careful trim returns lock in control. Coordinate electricians and integrators so outlets, speakers, and sensors avoid shared cavities. A few extra minutes with a flashlight often earns years of peaceful returns.
Duct liners, oversized registers, flexible connectors, and low-sone equipment tame hiss and rumble. Isolate air handlers, float condensers on pads, and avoid rigid bridges. The reward is pure comfort—air you barely notice and conversations that no longer compete with ventilation drama.