What are the advantages of airspace and perimeter grilles?
Airspace grilles feature the muntin bars sealed in the insulating airspace between two panes of glass and make the windows easier to clean. Perimeter grilles have an easy snap-in design that allows you to easily remove them for cleaning and to quickly change the look of the windows. Custom grilles can be designed to fit a number of architectural styles and are also available as removable perimeter grilles for easy installation and removal.