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Finstral-System Lignatec in the Hotel Alpina Dolomites

Symbiosis with nature

The “Alpina Dolomites” hotel opened in December 2010 on the Seiser Alm in South Tyrol. It was in addition fitted with Finstral windows, which meet the architects’ requirements in respect of aesthetic qualities and lowest possible energy consumption. The Lignatec windows used have thermal insulation values of up to Uw This is the heat transmittance coefficient of the window element. The value indicates the amount of heat transferred in one hour through one square metre of a component at a temperature difference of one Kelvin (equivalent to 1°C). The lower the heat transmittance coefficient, the less warmth that is lost through the window and the better its heat insulation properties. The unit is [W/m²K]. = 0.84 W/m²K (thus meeting passive house standards), with excellent airtightness and resistance to driving rain.
 
 
 
 
Benchmark data Hotel Alpina Dolomites Seiser Alm *****
Architecture and detailing: tage-architect, Gerhard Tauber, Dr. Arch., www.tage.it
Urban planning: Debiasi & Comploi
Project management: Michaeler & Partner, Wilfried Lechner
 
 
The five-star “Alpina Dolomites” hotel combines a lodge and spa experience into something special: located at an altitude of 1,860 metres, above the top station of the Compatsch lift, it is characterised by its linear form, its façade and the materials used, all co-ordinated in every detail to create a harmonious whole.
The form and choice of materials directly reflect the hotel’s surroundings. Generous window frontages on the south side offer magnificent views of the unique mountain scenery. The building complex is divided into a main and a staff building, with a separate round building for a self-service restaurant. The main building has a linear arrangement, structured by two stairways, at which the structure is angled into various sightlines to offer guests a 360-degree view of the Dolomites. The ground floor and four upper floors contain 56 hotel rooms; eight are smaller in size, while there is also a large suite. The building also contains the kitchen, dining area, swimming pool, fitness area, play room, a conference room, a beauty and wellness area with five saunas, a shop, a hairdressing salon and the technical areas. The hotel can be reached either by means of an underground garage or via a long approach road.
 
Energy-saving concept
 
The hotel was designed to Climate House B standards, with a heating energy requirement of less than 50 kWh/m²a. The basis for this low energy consumption is the compact building method and high level of thermal insulation of the building shell. The walls are constructed of heat-insulating brick, with 18-centimetre bonded and sealed insulation, a special drainage foil and a 3-centimetre thick quartzite façade. The windows too had to meet high requirements: the Finstral Lignatec windows used in the “Alpina Dolomites” hotel are in both wood-aluminium and wood-PVC versions, with thermal insulation to passive house standards of up to Uw This is the heat transmittance coefficient of the window element. The value indicates the amount of heat transferred in one hour through one square metre of a component at a temperature difference of one Kelvin (equivalent to 1°C). The lower the heat transmittance coefficient, the less warmth that is lost through the window and the better its heat insulation properties. The unit is [W/m²K]. = 0.84 W/m²K, as well as excellent airtightness and resistance to driving rain. In the wood-PVC version the Lignatec central seal The central seal is concealed in the central area of the window frame and is thus protected against wind and weather. It ensures the air- and watertightness of the window. system combines maintenance-free PVC on the weather side with natural, comfortable solid wood on the inside. The wood-aluminium version, Lignatec KAB, uses clip-on external cladding of extremely weather-resistant aluminium. The internal frame is of 12-millimetre clipped-on solid wood of natural brushed oak. The windows have a particularly slender profile, so the large glazed area and smaller frames provide plenty of light in the rooms. The sash frame Windows consist of a window frame and a sash frame. The sash frame is the moving part of the window that can be opened by turning, tilting, sliding or folding. of the Classic-line variant has an external visible width of only 31 millimetres. At the heart of the window is a PVC multi-chamber profile of lead-free hard PVC that guarantees outstanding airtightness, safe drainage and excellent resistance to driving rain – not to mention low heating costs, ease of maintenance and great longevity. Break-in resistant fitting Fittings refer to all the metallic and non-metallic parts that permit the opening and closing of windows and doors. They include hinges, locks, bolts, panels and drive units.s and sound insulation values of 36 to 38 dB dB is the abbreviation for decibel, a unit of sound volume. This value indicates the sound insulation level of a window. The higher the dB value, the better the sound insulating properties of the window. Note that the decibel value uses a logarithmic scale, so a change of 10 dB thus means a halving or doubling of the sound insulation effect. For example, a window rated at 42 dB offers twice the sound insulation as a window rated at 32 dB. further increase the comfort factor for hotel guests. Lift-and-slide doors are also available for the wood-aluminium versions, with very easy operating mechanisms and excellent thermal insulation values of up to Uw This is the heat transmittance coefficient of the window element. The value indicates the amount of heat transferred in one hour through one square metre of a component at a temperature difference of one Kelvin (equivalent to 1°C). The lower the heat transmittance coefficient, the less warmth that is lost through the window and the better its heat insulation properties. The unit is [W/m²K].= 0.92 W/m²K.
 
Harmonious design
 
The five-storey main building is aligned on an east-west axis: the natural stone façade of quartzite and the wooden roof cornice create an optical dialogue with the surrounding mountain scenery and reflect the geography of the landscape. The hotel approach road continues the harmonious concept: at the end the road is a large, covered entrance area projecting from the main building. From here guests can go directly to the reception via a porch. A four-metre long open fireplace and a structured timber ceiling make for an impressive effect, while in the adjacent library, lounge and smoking rooms, large glazed areas provide unhindered views of the magnificent Dolomite mountain panorama. From the reception area the dining room is accessed via a spectacular wine cabinet behind glass panelling. The dining area is divided into a buffet, a main room and three original old parlour rooms: one gothic and two classical in style. The rooms too reflect the linear details, colours and materials.

The bespoke details and furniture of all rooms were integrated into the total concept. The furnishings match the room colour scheme. All rooms and suites on the upper three floors are south-facing. The connecting corridors, kitchen, storage and staff areas are on the north side or in the wing behind the building. The ground floor contains the swimming pool and the beauty, medical and spa areas with the sauna. The projecting structure for the swimming pool and spa area also serves as a viewing and sun terrace. The outside features a lawn area.