Each Quiet Line Series window is double glazed with a built-in sound panel, essentially two windows combined into one. But rather than gluing together two separate components, Milgard carefully designs each quality window through single-extrusion construction for superior sound control and better weather protection.

Sound Transmission Class (STC) is the main rating system used to communicate how well products block sound. A typical double glazed window provides an STC rating of 28-32. Quiet Line Series can provide a rating of up to 48 — better protecting against the noise pollution that may keep families up at night.

While engineering the components that contribute to Quiet Line’s performance, Milgard was also sensitive to the design. When homeowners install Quiet Line Series, they are usually doing so for the noisest part of the house. To keep a uniform look throughout,  Quiet Line Series can be matched with the window styles from Montecito® Series and Tuscany® Series product lines.