References ⁄ Commercial and residential building in Locarno/Ticino (CH)
 
PAVATEX DIFFUTHERM, the high-performance insulation solution

In Locarno, Switzerland, a six-storey commercial and residential building was completed in just 15 months using an innovative and cost-effective modular design concept. The facade consists of over 100 prefabricated modules in timber-frame design with integrated PAVATEX DIFFUTHERM boards to provide perfect insulation. The physically forgiving baseboard provides optimum stress relief, even in the case of renderings that are subject to severe and rapid fluctuations in temperature.

A striking six-storey commercial and residential building has recently been erected in Locarno, one of the largest towns in the canton of Ticino and situated on Lake Maggiore. Besides six apartments and a doctor’s surgery, the new building has space for several offices and multi-purpose rooms used by the building’s owners, the church community “Missione Popolare Evangelia”. The building plans had to satisfy demands for a spacious floor layout due to the intended multiple usage of the building, while featuring a design that would enable a functional, high-quality building to be constructed in just 15 months or so. Moreover, the proximity to Lake Maggiore meant that the building would require protection against the high water that regularly causes large areas of Locarno to be flooded. Architect and project leader Marco Cahenzli from Locarno opted for a simple cube-shaped building erected using a series of concrete, steel and wooden modular elements. The high degree of prefabrication of the individual components allowed the building to be completed quickly and cost-effectively. Whereas cast-in-place concrete was used for the stairwell and the lifts, the main structure consists of a steel girder frame into which prefabricated, lightweight concrete elements were inserted to form intermediate floors. The facade, too, comprises individual, prefabricated timber modules. The ground floor was left open so that it can be used as a car park in dry periods but left to flood completely at high water, similar to a house built on stilts.

A proven, cost-effective system from PAVATEX

Each of the 3.3 m by 6 m (height x width) facade elements is a 120 mm-thick, laminated timber frame into which a similar thickness of rockwool is incorporated for insulation. 18 mm-thick OSB boards were mounted on the interior. 60 mm PAVATEX DIFFUTHERM, an innovative wood fibre-based EIFS (exterior insulation and finish system) for use with rendered outside walls, was used for the exterior finish. In use since 1992, this system consists of various thicknesses of wood fibre sandwiched together to form a permeable board with excellent thermal insulation properties. Low thermal conductivity and considerable heat storing capacity are typical EIFS features. PAVATEX DIFFUTHERM provides optimum protection against the cold in winter and overheating in the summer months, while also absorbing noise. The system meets the highest requirements in terms of fire protection too, as demonstrated by fire-resistance ratings of up to F 180-AB for solid buildings and up to F 90-B for timber constructions. With its permeable, breathable structure and outstanding capillary action, PAVATEX DIFFUTHERM is an excellent conductor of moisture and thus helps to stabilise humidity levels in a building. This makes for a comfortable and healthy living environment throughout and helps to prevent mould and damage caused by damp.

PAVATEX DIFFUTHERM: the strong wood fibre baseboard that keeps its shape

The architect decided to use PAVATEX DIFFUTHERM for other reasons, too. “Thanks to a 100 kPa strength rating, PAVATEX DIFFUTHERM is easy to work and keeps its shape very well,” explains Marco Cahenzli. “And because PAVATEX DIFFUTHERM is an excellent baseboard for use with rendered walls, there’s no need to have an extra layer of cladding. That saves a lot of time and costs, and makes for rapid construction progress.”

Inch-perfect, modular design with directly renderable wood fibre boards

The facade elements, including all the windows and doors, were manufactured by Trüssel Holzbau GmbH in Schenkon before being integrated on site. All told, 1,350 m² of PAVATEX DIFFUTHERM were used for the 105 modules, along with some 200 m² of 20 mm-thick reveal board for the door and window borders – and the assembly process ran smoothly throughout. “PAVATEX wood fibre insulation boards are a tried-and-tested product in proven Swiss quality that we have been using successfully for some time now,” explains Daniel Burkart of Trüssel Holzbau GmbH. “It was especially important for the elements to be planned in detail beforehand, and the competent support provided by PAVATEX meant that everything went absolutely according to plan.” PAVATEX sales consultant Benno Felber provided the technical support for the building project from the outset. “PAVATEX DIFFUTHERM is a permanent, weather-proof facade that has proved its worth especially in mixed construction where the joins aren’t a problem,” says Benno Felber.

PAVATEX DIFFUTHERM: the optimum way to reduce stress in renderings

With the facade elements installed, the final stage involved rendering and painting the building. The choice of colour for the building proved a major challenge. “The anthracite paintwork underscores the building’s architectural impact and establishes a focal point within the existing building landscape,” explains architect Marco Cahenzli. “Many types of facade insulation cannot properly support dark colours with their low reflective properties.” However, the architect found just the right insulation material for his chosen colour in the form of PAVATEX DIFFUTHERM. “PAVATEX wood fibre boards constitute a physically forgiving system that provides optimum stress relief, even in the case of renderings that are subject to severe and rapid fluctuations in temperature,” says Benno Felber. Locarno now has one more innovative building, one that is setting trends in terms of design and physical characteristics alike.

PAVATEX DIFFUTHERM, the high-performance insulation solution

In Locarno, Switzerland, a six-storey commercial and residential building was completed in just 15 months using an innovative and cost-effective modular design concept. The facade consists of over 100 prefabricated modules in timber-frame design with integrated PAVATEX DIFFUTHERM boards to provide perfect insulation. The physically forgiving baseboard provides optimum stress relief, even in the case of renderings that are subject to severe and rapid fluctuations in temperature.

A striking six-storey commercial and residential building has recently been erected in Locarno, one of the largest towns in the canton of Ticino and situated on Lake Maggiore. Besides six apartments and a doctor’s surgery, the new building has space for several offices and multi-purpose rooms used by the building’s owners, the church community “Missione Popolare Evangelia”. The building plans had to satisfy demands for a spacious floor layout due to the intended multiple usage of the building, while featuring a design that would enable a functional, high-quality building to be constructed in just 15 months or so. Moreover, the proximity to Lake Maggiore meant that the building would require protection against the high water that regularly causes large areas of Locarno to be flooded. Architect and project leader Marco Cahenzli from Locarno opted for a simple cube-shaped building erected using a series of concrete, steel and wooden modular elements. The high degree of prefabrication of the individual components allowed the building to be completed quickly and cost-effectively. Whereas cast-in-place concrete was used for the stairwell and the lifts, the main structure consists of a steel girder frame into which prefabricated, lightweight concrete elements were inserted to form intermediate floors. The facade, too, comprises individual, prefabricated timber modules. The ground floor was left open so that it can be used as a car park in dry periods but left to flood completely at high water, similar to a house built on stilts.

A proven, cost-effective system from PAVATEX

Each of the 3.3 m by 6 m (height x width) facade elements is a 120 mm-thick, laminated timber frame into which a similar thickness of rockwool is incorporated for insulation. 18 mm-thick OSB boards were mounted on the interior. 60 mm PAVATEX DIFFUTHERM, an innovative wood fibre-based EIFS (exterior insulation and finish system) for use with rendered outside walls, was used for the exterior finish. In use since 1992, this system consists of various thicknesses of wood fibre sandwiched together to form a permeable board with excellent thermal insulation properties. Low thermal conductivity and considerable heat storing capacity are typical EIFS features. PAVATEX DIFFUTHERM provides optimum protection against the cold in winter and overheating in the summer months, while also absorbing noise. The system meets the highest requirements in terms of fire protection too, as demonstrated by fire-resistance ratings of up to F 180-AB for solid buildings and up to F 90-B for timber constructions. With its permeable, breathable structure and outstanding capillary action, PAVATEX DIFFUTHERM is an excellent conductor of moisture and thus helps to stabilise humidity levels in a building. This makes for a comfortable and healthy living environment throughout and helps to prevent mould and damage caused by damp.

PAVATEX DIFFUTHERM: the strong wood fibre baseboard that keeps its shape

The architect decided to use PAVATEX DIFFUTHERM for other reasons, too. “Thanks to a 100 kPa strength rating, PAVATEX DIFFUTHERM is easy to work and keeps its shape very well,” explains Marco Cahenzli. “And because PAVATEX DIFFUTHERM is an excellent baseboard for use with rendered walls, there’s no need to have an extra layer of cladding. That saves a lot of time and costs, and makes for rapid construction progress.”

Inch-perfect, modular design with directly renderable wood fibre boards

The facade elements, including all the windows and doors, were manufactured by Trüssel Holzbau GmbH in Schenkon before being integrated on site. All told, 1,350 m² of PAVATEX DIFFUTHERM were used for the 105 modules, along with some 200 m² of 20 mm-thick reveal board for the door and window borders – and the assembly process ran smoothly throughout. “PAVATEX wood fibre insulation boards are a tried-and-tested product in proven Swiss quality that we have been using successfully for some time now,” explains Daniel Burkart of Trüssel Holzbau GmbH. “It was especially important for the elements to be planned in detail beforehand, and the competent support provided by PAVATEX meant that everything went absolutely according to plan.” PAVATEX sales consultant Benno Felber provided the technical support for the building project from the outset. “PAVATEX DIFFUTHERM is a permanent, weather-proof facade that has proved its worth especially in mixed construction where the joins aren’t a problem,” says Benno Felber.

PAVATEX DIFFUTHERM: the optimum way to reduce stress in renderings

With the facade elements installed, the final stage involved rendering and painting the building. The choice of colour for the building proved a major challenge. “The anthracite paintwork underscores the building’s architectural impact and establishes a focal point within the existing building landscape,” explains architect Marco Cahenzli. “Many types of facade insulation cannot properly support dark colours with their low reflective properties.” However, the architect found just the right insulation material for his chosen colour in the form of PAVATEX DIFFUTHERM. “PAVATEX wood fibre boards constitute a physically forgiving system that provides optimum stress relief, even in the case of renderings that are subject to severe and rapid fluctuations in temperature,” says Benno Felber. Locarno now has one more innovative building, one that is setting trends in terms of design and physical characteristics alike.