Selectaglazes gives Marylebone grade II listed townhouse a new lease of life

Selectaglaze recently assisted the renovation of six Grade II Georgian Townhouses situated in Gloucester Place, London.

The Portman Estate aimed to bring the building up to the highest of 21st century standards whilst ensuring it retains the beautiful historic features of the buildings. Dating back as far as 1787, the buildings along Gloucester Place possess a lot of history, but that also comes with some practical issues.

The six townhouses underwent an extensive renovation in order to convert the properties into one large hotel. A key issue identified during the transformation was the original windows, which were draughty, thermally inefficient and allowed noise ingress. However, due to the Listed status of the buildings, the existing windows could not be replaced. Fortunately, Selectaglaze offered a great alternative solution. 

Selectaglaze installed in excess of 80 secondary glazed units. The Series 90 was used on the larger windows which were up to 3m high and used up to 10.8mm thick glass. It is a heavy duty vertical sliding unit with specialist balances which allow large and weighty panels to operate with ease. When thicker glass is used, coupled with a gap between the primary and secondary glazing of at least 100mm; they work together to stop the glass from resonating and allowing sound through. This dramatically reduces the outside noise entering into the room. Using an acoustic laminated glass helps to absorb the sound even more, resulting in noise reductions of at least 46dB.

All the secondary glazed units were fitted with low-E glass, which provides U-values of around 1.8, to help reduce heat loss throughout the building. The inclusion of bespoke fixings to ensure the tightest fit and high-performance seals minimises air leakage and draughts, making the environment more comfortable and thermally efficient.

In addition, Selectaglaze secondary glazing units match existing sight lines wherever possible to make them virtually unnoticeable and as a fully reversible adaptation; they are accepted by most heritage bodies – making them a great solution for Gloucester Place.

Contact:

Selectaglaze,
Alban Park,
Hatfield Road,
St. Albans,
Hertfordshire,
AL4 0JJ

Phone: 01727 837271

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