Sash windows are old-fashioned and are found often in Georgian and Victorian homes. Made by hand, there were irregularities in windows that over time made the windows warp in the frames, letting in cold and noise. Modern manufacturing processes for wooden sash windows have eradicated these problems.
A sash window design allows you to open the window to the level you wish, sliding the lower section up vertically, without the window falling down again. A rope and counterweight system built into the frame enabled this. Thick walls were required to fit the windows and modern houses are built with thinner walls. The modern trend is to use a friction tracks to accomplish the same thing.
These windows were only as good as the craftsman who made it and over the years any slight defects would have warped into large gaps between frame and window. Machines now take care of most of the process. Architects provide detailed CAD-generated detailed drawings and technical support and these are fed into the programming for the machinery.
Modern building standards have forced manufacturers to greater accuracy as durability, insulation and security requirements are part of the building codes. There are also many more constructions happening simultaneously and the old methods would never provide this standard. Machines just do the job better.
The client will choose what design to use and what colours or varnishes are used to finish the frame. Locks, hinges, glass, handles are all changed according to the client's wishes. Windows that keep the heat in and the sound out but let in lots of sunlight are usually chosen by clients.
The wood is finished with a micro-porous sealant that is water-based. Three coats of this will reduce maintenance as will the preservative that is applied to protect the wood against fungi and wood-boring insects. Paints that are water-based are used for the primer to fill the wood microscopically which prevents water seeping into nooks and crannies. Finally a top coat of paint or stain is added for a durable finish.
To seal the window a gasket is placed between the frame and window to reduce noise and weather intrusions. This is resistant to deformation caused by temperature, sunshine or the mechanical operation of the window.
The modern manufacturing processes for wooden sash windows involves CAD technology, hydraulic cramps, quickset moulders and computerized morticing systems. Managed by control software specific to each manufacturer, a production management database controls the whole manufacturing process to schedule.
A sash window design allows you to open the window to the level you wish, sliding the lower section up vertically, without the window falling down again. A rope and counterweight system built into the frame enabled this. Thick walls were required to fit the windows and modern houses are built with thinner walls. The modern trend is to use a friction tracks to accomplish the same thing.
These windows were only as good as the craftsman who made it and over the years any slight defects would have warped into large gaps between frame and window. Machines now take care of most of the process. Architects provide detailed CAD-generated detailed drawings and technical support and these are fed into the programming for the machinery.
Modern building standards have forced manufacturers to greater accuracy as durability, insulation and security requirements are part of the building codes. There are also many more constructions happening simultaneously and the old methods would never provide this standard. Machines just do the job better.
The client will choose what design to use and what colours or varnishes are used to finish the frame. Locks, hinges, glass, handles are all changed according to the client's wishes. Windows that keep the heat in and the sound out but let in lots of sunlight are usually chosen by clients.
The wood is finished with a micro-porous sealant that is water-based. Three coats of this will reduce maintenance as will the preservative that is applied to protect the wood against fungi and wood-boring insects. Paints that are water-based are used for the primer to fill the wood microscopically which prevents water seeping into nooks and crannies. Finally a top coat of paint or stain is added for a durable finish.
To seal the window a gasket is placed between the frame and window to reduce noise and weather intrusions. This is resistant to deformation caused by temperature, sunshine or the mechanical operation of the window.
The modern manufacturing processes for wooden sash windows involves CAD technology, hydraulic cramps, quickset moulders and computerized morticing systems. Managed by control software specific to each manufacturer, a production management database controls the whole manufacturing process to schedule.
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