Energy efficient, eco friendly building systems

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Low Energy Houses

What exactly is a low-energy house?


Low energy houses are called heated buildings, where the need for heating provided by one of the standardized calculations and with respect to 1m2 of floor area heated does not exceed 50 kWh per year.

The low demand for heating of houses built with VELOX technology are the result, not only of the excellent thermal insulation properties of walls with optional insulation of up to 200 mm.

also the accumulation and thus the thermal inertia of the walls several times higher than conventional building materials.

This combination allows you to accumulate heat from sunlight through glazed areas during the day and in the evening return it back into the living space.

This has a reverse effect in the summer where accumulated evening and night time cold air helps maintain a pleasant room temperature without additional air conditioning.

  • Walls suitable for low-energy houses
    The low demand for heating of houses built with VELOX technology are the result, not only of the excellent thermal insulation properties of walls with optional insulation of up to 200 mm, but also the accumulation and thus the thermal inertia of the walls several times higher than conventional building materials.

    This combination allows you to accumulate heat from sunlight through glazed areas during the day and in the evening return it back into the living space. This has a reverse effect in the summer where accumulated evening and night time cold air helps maintain a pleasant room temperature without additional air conditioning.
    Business signs 
    Wall Construction    		 The thickness of the walls without plaster
    mm    		 Using a thickness beat.insulation (polystyrene foam) 
    mm    		 Thermal resistance (ČSN 73 0540) R (wall without plaster) 
    m 2 K / W    		 Heat transfer coefficient U (wall without plaster) 
    W / m 2 K    		 Index of air flak sonority R W (wall with plaster) 
    dB    		  
    ZL 40 
    WS-35 EPS 215/150/WS    		 400 outer wall with 180 mm insulation 5.45 0.18 49
    AL 37 plus 
    WS-EPS-plus 185/150/WS 35    		 370 outer wall with 150 mm insulation 5.40 0.18 49
    AL 37 
    WS-35 EPS 185/150/WS    		 370 outer wall with 150 mm insulation 4.66 0.21 49
    LL 22 
    35 WS 35/150/WS    		 220 internal bearing walls, basement walls without insulation 0.66 1.51 57
    L 7.5 
    GG 10 
    WS 75 
    WS 50 50/WS    		 75 
    100    		 partition 0.79 
    0.90    		 0,952 
    0,862    		 39 
    39

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Low Energy Houses

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