Windows with Muntins
For Wood, Aluminum and Vinyl Windows
Until the mid 1850s, glass was produced in small sizes and combined into large windows and doors using muntins (also called grilles or divided lites). While no longer economically necessary, dividing windows with muntins is still considered more architecturally attractive and particularly common in the United States and areas with historical British influence. Neuffer offers three varieties of muntins to suit your sense of aesthetics and budget for any window, whether made of wood or vinyl or an aluminum clad one. The bars themselves are also available in different materials.
Genuine Glass Separating Muntins
Genuine muntins partition the glass into a series of smaller panes, meaning the window does not consist of a single large piece of glass. In the past, more muntins and small panes of glass meant more opportunity for insulation problems. However, this is no longer an issue and modern windows with genuine muntins are still nearly indistinguishable from their single pane counterparts. Finally, real bars provide significantly better burglary protection.
Viennese bars are mounted with an adhesive on either outward facing side of the glass only, or both sides. Therefore, they have no effect on the window's energy efficiency and ability to insulate. With multiple glazing, the space between panes can also optionally feature a matching bar. This makes them nearly indistinguishable from genuine old-fashioned muntins. For this reason, the Viennese technique is often used in historic buildings.
Helima bars are powder-coated bars inserted in-between the individual glass panes of glass. This means the outer window surface remains unchanged and is thus very easy to clean. The only disadvantage is that, being between the glass panes, the bars can serve to conduct energy and decrease a window's insulation ability somewhat.