Are multi-pane vertical sliding sash windows an essential part of traditional or classical design ... there are good classical precedents: applying detail to the frame; introducing a central column, ...

Using a ‘system of hidden, counterbalanced weights to allow both top and bottom sash frame to be moved independently’, it brought a clever system of ventilation that surpassed what was possible with a ...

The Sash Window Consultancy claims to have come up with a solution for upgrading traditional sash windows in listed and period properties that is accepted by local authority conservation officers In ...