ventilated façades - Butech

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energy savings and sustainable
development
Considerable improvements in the thermal behaviour of the façade, by increasing the
thermal resistance of the envelope or overall improvement in the performance of the
façade, as well as many other benefi ts.
• Reduction of the thermal transmission coeffi cient (U) of the building envelope by increasing the thermal resistance by convection
of the outer surface of the envelope.
• Easier installation of the insulation material on the outside of the existing envelope in renovations or new projects.
• Reduction of the heat fl ow caused by incident solar radiation in summer by up to 80%, thanks to the chimney eff ect created
between the ceramic tile cladding and ventilated air gap. As a result of the air inside the gap heating up and causing low pressure
inside the gap with respect to the external pressure, the hot air rises by convection, allowing cooler air from the outside to enter the
gap through the open joints. Prevention of direct radiation on the supporting wall and drastic reduction of solar heating through
the envelope. This means that the width of the existing air gap must be 20 mm or more between the rear of the tiles and the outer
surface of the thermal insulating material.
• Elimination of thermal contacts at points where the edges of the fl oor slab connect with the vertical envelope, by installing thermal
insulating material on the outside of the supporting wall, both in renovation projects or new building projects.
• Greater inertia of building envelope.
• More comfortable conditions inside the building.
• Reduction in heating requirements, and reduction in cooling requirements up to a certain point.
• Energy savings depending on local climate, direction of building and number of doors and windows in the building.
• Reduction in CO2 emissions thanks to improved energy performance of the building.
• Reduced air noise thanks to the presence of open joints in the whole of the façade and the ventilated air gap.
• Porcelain tiles do not emit volatile organic compounds (VOCs).
• 100% recyclable natural product.
Butech has evaluated the energy effi ciency of the STON-KER® ventilated façade thanks to a thermal characterisation study carried out by
the CIDEMCO Institute.
The policy of stands out for its commitment to supply products with the best possible service that fully
respond to clients’ expectations and demands, complying with applicable legal and environmental standards.
With this aim in mind, has made a commitment to maintain its position of leadership in terms of quality
and the compliance of its quality control system with the ISO 9001 standard.
Since it fi rst began its industrial activity, the commitment of towards the preservation and conservation
of nature and the environment as a whole has taken shape through ECOTECH, a series of ideas and actions applied to the environment.
As a result, major investments have been made on a yearly basis in water supply systems, recycling waste materials, protecting the
atmosphere and saving energy, or in certifying the group’s environmental management according to the ISO 14001 standard.
* Minimum order 3 000 m2
Agrément Certi cate
No 10/4775
safety, protection and ease of installation
• Mechanical fi xing system using visible or invisible clips to prevent the tiles coming loose.
• Structural anchoring system that isolates the façade from movements in the structure of the building, by allowing the two layers
to move independently.
• Possibility of creating air gaps of diff erent widths using angle brackets from 4 to 35 cm.
• Possibility of correcting envelope plumbness using a structural anchoring system to compensate for irregular wall sections.
• Fire resistance of glazed ceramic tiles EURO CLASS B-s2, d0 according to the BS EN 13501-1 :2002 standard.
• Impact resistance.
• Seismic resistance.
• Installation work causes minimum disturbance.
certifi cations
The system has obtained favorable certifi cations such as the BBA Agreement Certifi cat 10/4775 in United Kingdom, the Florida Product
Approval FL9364 in United States of America, the EMI certifi cate A-758/2006 in Hungary, the Spanish certifi cation DIT 530 by the Eduardo
Torroja institute or the certifi cate Avis Technique CSTB n° 02/10-476 in France.
This system, which has now been on the market for 15 years, is increasingly used in both renovation and new construction projects.
Avis Technique 2/07-1269
A-758/2006
DIT Nº 530
FL9364
Florida building code approved
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