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A parting bead is a slender strip of timber fixed vertically inside a sash window frame to separate the upper and lower sashes, guiding their movement and helping to seal the gap between them.
In traditional box sash windows, it runs the full height of the box frame and is often paired with a staff bead on the interior face.
During refurbishment, parting beads are commonly upgraded with integrated draught-proofing brushes to significantly reduce air leakage while preserving the window’s historic function and appearance.
Float glass
Float glass is the standard, high-clarity flat glass used in most modern windows. It’s made by floating molten glass on […]
Annealed glass
Annealed glass is standard, untreated float glass that has been cooled slowly in a controlled process (annealing) to relieve internal […]
Fixed window
A fixed window serves as a stationary glazed panel which allows maximum sunlight entry while providing expansive view access but […]
