Pelmets are an architecture feature once peculiar to buildings of the pre-industrial past but which have been revived in contemporary design as a decorative ceiling element. Traditional pelmets are small enclosures mounted over the top edge of windows to provide a concealment for the hardware used to hang curtains. They also provided an air flow barrier that improved the thermal characteristics of curtains by preventing air flowing across windows to not flow entirely across the ceiling. In more recent times, pelmets have become a continuous ceiling border element that hosts recessed up and down lighting as well as concealment for electric curtain draw systems. The simplest pelmet forms are thin suspended frames that strip lighting fixtures are concealed by while shining light across the ceiling span. Larger ones employ a finished box or channel that can host combinations of recessed lighting elements or have an underside opening that hosts curtains. For rooms with vaulted ceilings, they can be used to conceal hardware or vents at the perimeter edge of the inside roof line while also providing up-lighting. They can even be fashioned of light translucent materials and function like a continuous box lantern all along the ceiling corner. In some situations, particularly where vaulted ceilings are employed, they can even serve as a shelf for decorative objects placed along the upper wall edges. Occasionally pelmets are used to conceal HVAC ductwork and are particularly suited to the concealment of ductless air conditioning registers. (or may actually be fashioned into an enclosure for them)
Utilihab will support many pelmet designs, but favors lighter and thinner forms. They are simply attached by alloy angles or flats mounting to the inner slots of the ceiling frame, a small gap in ceiling panels employed to allow the angles or flats to pass along the ceiling edge. These attachments -often along with wiring- are concealed by the closeness of the pelmet to the ceiling and wall surfaces.