We replaced several large windows with Marvin Infinity fiberglass windows. The first two pictures are post-installation. The last two are before the Marvin were installed. Because of the strength Marvin's fiberglass frame...
DeVac acoustical windows were used with 1/2"-laminated glass! QUIET!!! Plus a Mon-Ray storm door.
DeVac series acoustical windows with 1/2"-laminated glass were installed on the interior. Really deadened outside noise! Also installed a Mon-Ray storm door for additional noise reduction.