PPS 6 Planning Archaeology and the Built Heritage·Page 60·E14
Window Standardisation and Detail
Window design should respect historical variation in detail according to date, function, and region, with glazing bars, pane sizes, and other details appropriate to the building's age.
Within the broad window types such as sash or casement there is a wide variation of detail according to date, function and region. Standardisation to one pattern should be avoided. The thickness and moulding of glazing bars, the size and arrangement of panes and other details should be appropriate to the date of the building or to the date when the aperture was made.
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