Understanding Noise

Milgard understands the importance of peace and quiet in your home and engineers windows to help reduce unwanted noise.

Noise Reduction

Unwanted outside noise can occur in homes by a highway, airport or in a loud urban setting. This can have a significant impact on the enjoyment of your home, particularly if it disrupts your sleep.

Windows are one of the biggest culprits for noise issues. Single pane glass and wood window frames are generally the least resistant to noise. Conversely, well designed replacement windows can reduce noise. One of the most important factors for reducing sound penetration is glass. Double glazed windows and vinyl frames can help.

Sound Transmission Class (STC)

STC is used to measure a window’s ability to reduce sound. The higher the rating, the better the sound control. The typical rating for single pane windows is 18-20 while a double glazed window is 28-32. Milgard Quiet Line windows can achieve an STC rating of up to 48, for exceptional sound control.  

Quality windows can be used as a sound barrier for outside noise. Also consider the airspace between the glass panes. The closer the panes are to each other, the smaller the airspace and the more sound will pass through. Panes with varied thickness help block sound transmission.