Muntins are elements that divide a windowpane into smaller sections. They are narrow strips (made of wood, aluminum, or plastic) that can be placed in different ways:
– On the outside of the glass – as decorative strips applied to the surface of the glass on the inside and/or outside (so-called applied muntins).
– Inside the glazing unit – placed between the panes of glass (so-called internal muntins), which makes cleaning easier.
– Structural – an integral part of the window frame, physically dividing the glass into smaller parts.
Muntins are primarily used for aesthetic reasons – they add a classic, rustic, or elegant look to the windows – but in larger windows, they can also serve a structural purpose.