WiN woodworking INTERNATIONAL 2022/1
WiN - woodworking INTERNATIONAL is the international magazine for the woodworking industry. We report on all aspects of woodworking from board materials, wood treatment to machines, tools and technical know-how, from timber engineering supplies to the latest developments in technologies and markets.
WiN - woodworking INTERNATIONAL is the international magazine for the woodworking industry. We report on all aspects of woodworking from board materials, wood treatment to machines, tools and technical know-how, from timber engineering supplies to the latest developments in technologies and markets.
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WINDOWS<br />
Energy efficiency with historic charm<br />
SWISSPACER has been specified in a townhouse renovation in Basel, Switzerland. This sympathetic renovation ensured the windows<br />
retained a traditional appearance while offering excellent levels of energy efficiency. The use of high performance glass and<br />
SWISSPACER warm edge spacer bars within a slimline sealed unit helped maximise natural daylight in the property and create a comfortable<br />
indoor temperature.<br />
Translucent thermal insulating glass combined with the warm edge in the glazing edge to create a cosy and bright spatial experience<br />
inside the historic building.<br />
The renovation of a town house in Basel allowed the historic<br />
windows to retain their original external look.<br />
The townhouse’s original owners, brothers<br />
Georg and Rudolf Stamm, understood the importance<br />
of energy efficiency when they first designed<br />
their home in 1897. While some rooms<br />
were built with single-glazed windows, which<br />
was typical for that period, the windows in the<br />
main living areas included two panes of glass<br />
for improved insulation. The brothers also in-<br />
stalled a removable ‘winter window’, similar to<br />
secondary glazing, for very cold weather.<br />
Over the past two years, the townhouse,<br />
which is located in a conservation area in Basel,<br />
has undergone a total refurbishment. Architects<br />
Schröer Sell were responsible for the project<br />
and site management. Lead architect Carmen<br />
Eichenberger explains: “This was a careful and<br />
considered refurbishment that excluded major<br />
structural changes. Our aim was to retain and<br />
restore as many of the building’s original features<br />
as possible.<br />
“For example, we refurbished the roof for<br />
improved energy performance and restored<br />
the dormer window to its original design. We<br />
also retained the original room layout and main<br />
structures, including the windows and doors, to<br />
the front and rear of the property.”<br />
A slimline double glazing solution<br />
The high-performance glazing edge also contributes to the high energy efficiency of the slender insulating glass unit.<br />
Schröer Sell worked closely with sub-contractor<br />
Holzmanufaktur Rottweil, who were responsible<br />
for restoring the windows and developing<br />
a solution that helped retain the building’s<br />
original appearance. “We reconditioned<br />
No. 1 • March <strong>2022</strong><br />
27
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