TRADITIONAL CONSERVATION
STYLE BOX SASH
These are manufactured to entirely replicate the
traditional box manufactured since Victorian times. Prime usage will be to match
those in listed buildings or conservation areas.
Available in any configuration or size. There can be double
or triple sashes per window and combined in blocks, although three is the usual
maximum.
As they are for use in listed buildings they will usually be only for single
putty glazing, although an updated version is available,
to meet current glazing
regulations, where permitted.
Configurations
include:
- Traditional multi light glazing with any suitable moulding specified.
- Arched sashes with arched glazing bars, in either straight or arched
heads.
- Curved sashes and frames, incorporating either curved or straight panes.
Available in ‘Venetian’ configuration, which is a centre opening box flanked
by smaller boxes each side, the sashes of which are fixed. This allows the
weight boxes for the central sashes to be on the outside, the cords running over
the fixed sashes, thus allowing a slim dividing mullion to act as the moving
sashes runner.
Available in treated softwood or hardwood at your option. Sills are always
hardwood unless required otherwise. Composite sills with softwood on the inside
and hardwood on the exterior are available.
Can be made with inward opening feature to meet certain building regulation,
or fire escape, requirements.
UPDATED VERSION
By incorporating ‘Grid system’ beading, which lies over a single sealed unit,
the appearance of narrow traditional bars can be retained. The draught-stripping
is unobtrusive and the trickle ventilators are un-noticeable from the outside,
with only an adjustable grille seen on the inside. These improvements are
achieved with such little impact on the visual appearance that they are
sometimes allowed to be incorporated in listed buildings.
The windows can also be manufactured with spiral spring balances instead of
traditional weights and cords where there is insufficient reveal cover for a
full weight box.