The Beauty of Double Glazed Sash Windows

Entry #2562, June 25, 2013

For many people it’s the charm and character of an older property that makes them fall in love with it at first sight. Things such as gabled roofs, ornate fireplaces, wooden floors and tall, elegant sash windows paint a pretty picture. However, on the downside, along with those period sash windows inevitably comes irritating rattles, draughts which chill, and single glazing which brings outside noise in. Fortunately, window manufacturers now extend their ranges to include sash windows which are inspired by the classic design of bygone years which also provide the functional benefits of double glazing which are warmth, quietness, and security. There are two choices when it comes to double glazed sash windows and those are replacing the windows completely with purpose built sash windows made to suit your home and budget or fitting sealed double glazed units into the existing sashes.

Sash windows can be replaced to look like new

Image via: Gary J Ahern, AIA – Focal Point Design

Replacing Old for New

When it comes to replacing your sash windows with new ones, most companies offer a choice of timber frames for a traditional period look or UPVC frames which again offer a traditional look but with very little maintenance being needed. Whichever type you choose, you can rest assured that the windows will be energy efficient, secure, rattle free and open and close with consummate ease.

Traditional Timber

When you choose timber frames, you will also be offered a choice of traditional cords and weight mechanisms or be able to choose a more modern twist of hidden springs which ensure that the windows open smoothly. In addition, most companies offer a choice of finishes and colour of locks.

Traditional timber and UPVC frames are options for sash windows

Image via: Smith & Vansant Architects PC

UPVC

Many people choose UPVC double glazed sash windows for the reason that they require minimum maintenance. They look fresh and bright and only require a wipe down with a damp cloth to remove dust and dirt. Generally these styles of windows rely on a hidden spring mechanism for effortless opening and closing, and some feature a tip and tilt function which makes cleaning them a breeze. As with the timber frames, they too can be supplied with traditional styles of locks, catches and glazing options to personalise your home.

A fully trained professional will guide you through the range of design choices, security features and thermal performance, helping you to choose the right design for your home and budget.

What type of sash window fits your home?

Image via: Pine Street Carpenters & The Kitchen Studio

Fitting Sealed Double Glazed Units

As an alternative to replacing your old windows for new, you may be considering having sealed double glazed units fitted into your existing frames. Even if your timber frames appear to be in good condition, going down this path can lead to problems. The main danger is that the glazing bars may not be deep enough to hold the sealed units. This means that there isn’t room for a sufficient depth of timber beading, which serves to protect the edge sealant from the heat of the sun, thus causing it to dry it out. This then leads to internal misting on the windows. Another cause of premature internal misting which can happen within the first year, is that sash windows notoriously fail to provide a clear drained 5 mm gap around all four edges of the sealed double glazed unit. If you love your sash windows but want to update them Lytham Window Company Limited can help.

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