Hundreds
of new low carbon family homes under construction in Leeds city centre will be
fully protected against the elements thanks ISO-CHEMIE’s expanding foam sealing
tapes.
Windows
and doors on more than 500 properties in the Climate Innovation District in
Leeds’s South Bank will benefit from a high performance airtight, acoustic and
thermal sealing thanks to ISO BLOCO ONE.
Developed
by sustainable urban developer Citu as part of a major city regeneration
project, the Scandinavian-style properties are the first family homes built in
Leeds city centre in over 90 years. They are set to incorporate the latest in
sustainable building technologies to cut the carbon footprint of the occupants
and create a zero-carbon neighbourhood.
Sustainability is a
key driver of the scheme, so self-adhesive foam tape has been specified to
provide effective long-term sealing of the window and door frame expansion
joints and gaps as each house is constructed off site in Citu Works, the
developer’s state-of-the-art purpose-built factory.
The use
of ISO BLOCO ONE will significantly help to achieve a Passivhaus target of 0.60
ACH at 50 Pascals airtight seal per completed building. The external seal area
provides weather resistance and breathability with a minimum resistance of 1000
Pascals (hurricane forces).
The intermediate seal area provides extra thermal and
acoustic properties, with a U-value of 0.8 or better, while the tape
installation itself gives less than 0.01 m³ air loss when tested at 1,000
Pascals air pressure difference.
Mark Fox, operations
manager at Citu, said: “ISO-BLOCO ONE is an excellent product, meeting the
requirements for an easy-to-install, cost effective and extremely reliable
sustainable sealing solution.”
Andy Swift,
ISO-CHEMIE’s national sales manager, said: “Developers like Citu are looking at
new ways to deliver low carbon homes, which use sustainable technologies. Our
tapes support this, delivering measurable airtight, acoustic and thermal
sealing properties.”
ISO-BLOCO
ONE offers a single product ‘fit and forget’ solution for fast and effective
sealing based around the European RAL principles of three level sealing - the
inside seal area is more airtight than the external one, allowing any trapped
moisture inside the joint, or within the wall, to escape outwards rather than
into the building.
Once installed,
ISO-BLOCO ONE ensures a building is better protected from elemental factors
like wind, dust and moisture ingress by accommodating the changes in structural
movement caused by environmental, cyclical and settlement factors.
Product, which has
Passivhaus certification, has CE marking and complies with energy saving
regulations (EnEV) on windows and doors as well as the RAL quality assurance
association, has an EC1 rating for very low emissions and a B1 fire resistant
rating. It can accommodate extremes of temperature changes – from -30°C to +
80°C and is available with a 10-year performance warranty.
