Energy:
With VELUX solar panels, natural ventilation through roof windows and floor heating the house is a holistic solution in contemporary energy-balanced architecture.
Sunlight through the south-faced windows contributes to the heating of the house and lets the residents benefit directly from this natural resource of passive solar energy. To go a step further in the use of solar energy, solar panels are installed to produce hot water for the household. The thermal solar panels are put to full use as the 65 degree saddle roof is facing south/west.
The energy qualities of the house combined with the excellent daylight conditions and the good indoor climate makes the house a fi ne example of sustainable living.
Heating system:
Two solar panels have been installed in the roof and the heat production from the solar thermal system minimises the use of district heating.
On the ground floor under-floor heating will be installed. On the first floor the choice of radiators or under-floor heating will have no impact on the energy demand, but the under-floor heating will contribute to the comfort and good indoor climate in the house.
Energy:
With VELUX solar panels, natural ventilation through roof windows and floor heating the house is a holistic solution in contemporary energy-balanced architecture.
Sunlight through the south-faced windows contributes to the heating of the house and lets the residents benefit directly from this natural resource of passive solar energy. To go a step further in the use of solar energy, solar panels are installed to produce hot water for the household. The thermal solar panels are put to full use as the 65 degree saddle roof is facing south/west.
The energy qualities of the house combined with the excellent daylight conditions and the good indoor climate makes the house a fi ne example of sustainable living.
Heating system:
Two solar panels have been installed in the roof and the heat production from the solar thermal system minimises the use of district heating.
On the ground floor under-floor heating will be installed. On the first floor the choice of radiators or under-floor heating will have no impact on the energy demand, but the under-floor heating will contribute to the comfort and good indoor climate in the house.
Daylight:
Light is essential for most activities. Light is crucial for safety. Light integrates fixtures and functions and helps to provide the right atmosphere and comfort.
Light provides life. The large amount of daylight in the home gives variation as the light will change as clouds drift overhead. This provides dynamic lighting to stimulate the senses. Especially in the winter time, direct sunlight can be a much needed boost for creativity and energy and roof windows will lead daylight deeper into the rooms than vertical windows.
Architects have made daylight research and each and every space in the house has been considered independently in terms of orientation to the sun and the natural light needed for the various home activities. A sequence of roof windows provides plenty of daylight to the upper floor and the stairs. And through the opening in the ground floor ceiling plenty of daylight penetrates to this floor from the windows in the roof.
A roof window provides considerably more daylight than a vertical window, and the light from a roof window is more evenly spread and penetrates deeper into the room. Daylight through a roof window provides enough light even for reading most of the year.
Exterior blinds screen against sunlight and heat. They are a flexible way of controlling the light intake without restricting the view to the outside.
First floor:
The first floor is the more private part of the house. The two bedrooms for children are situated towards south/west where they get lots of daylight both through the roof windows in the ceiling and through the windows in the sloped façade. Daylight coming from different directions reflects and makes the rooms attractive.
Children spend many hours in their rooms and it is important that they get a lot of daylight.
The master bedroom is situated to the east and gets daylight through a roof window.
Opposite the master bedroom is a bathroom with adjoining sauna.
In the centre of the first floor is the hall. The hall is a family place for relaxation, playing or other activities. It is a spacious and inviting room with plenty of daylight coming from the balcony windows and two roof windows. It is the “heart of the house” as it is also the centre for communication between the two floors.
Daylight Factor (DF) Analysis:
According to British standard (CIBSE 1997), an average DF of 5% or more will ensure that an interior looks substantially daylit. An average daylight factor below 2% generally makes a room look dull; electric lighting is likely to be in frequent use.
High Levels of daylight combined with the use of proper shading elements for windows will procure the occupants freedom over the light condition and promote optimal indoor comfort.
Top lights:
Through the sloped ceiling daylight penetrates down and brings plenty of light into the rooms. A daily life filled with daylight is essential to human metabolism and children’s learning ability and growth. Daylight coming from different directions creates a good and dynamic balance. This makes the living space attractive for the whole family. And not least an ideal place for the children, who need lots of sun- and daylight to grow healthy.
Daylight Factor (DF) Analysis:
According to British standard (CIBSE 1997), an average DF of 5% or more will ensure that an interior looks substantially daylit. An average daylight factor below 2% generally makes a room look dull; electric lighting is likely to be in frequent use.
High Levels of daylight combined with the use of proper shading elements for windows will procure the occupants freedom over the light condition and promote optimal indoor comfort.
Ventilation: The combination of intake of fresh air through windows at ground level and the highly placed roof windows where the exhaust air is let out, results in effective ventilation of the living areas on both fl oors of the house. The opening in the centre of the house makes it possible to ventilate the ground fl oor through the roof windows. To avoid uncomfortably high temperatures during summer and the need for air conditioning, external solar shading should be used on windows facing south. The house is well insulated and airtight. This makes natural ventilation suffi cient during the summer season, and in winter time a combination of mechanical ventilation and heat recovery contributes to the low energy consumption. Project data:
- Ground floor incl. wall (without open terrace)
- First floor incl. wall (without open terrace)
- Attic with sloped wall: the area shall be measured at a horizontal plane 1,5 m above the finished floor to here the plane meets the outer surface of the roof cladding
| Total gross area: |
231,45 m² |
| Total net area: |
187,90 m² |
| Total floor area: |
180,30 m² |
| Airspace: |
2,80 m² |
| Ground floor: |
102,30 m² |
| First floor: |
85,60 m² | (calculation of areas according to BR95, building regulations for Denmark) Roof angle: 10 degree. Pent roof with sloped facade (65 degree) Energy balance:
EnergyPlus have an energy consumption of 40,9 kWh/m2 per year which meets the requirements of low energy class2 To reduce the energy consumption further it is possible to use VELUX GGLX62_65 as roof windows, reducing the energy consumption to 38,1 kWh/m2 per year which meets the requirements of low energy class1.
| Total energy demand |
kWh/m² per year |
| Low energy class 1 |
140,1 |
| Low energy class 2 |
57,4 |
| Minimum requirement |
80,2 |
| Calculation for Energy+ |
40,9 |
Calculation for Energy+
with GGLX62_65 |
38,1 | (The calculation has been made with the computer program Be06. It provides an overview of the energy performance of the house based on Danish regulations).
Top lights:
Through the sloped ceiling daylight penetrates down and brings plenty of light into the rooms. A daily life filled with daylight is essential to human metabolism and children’s learning ability and growth. Daylight coming from different directions creates a good and dynamic balance. This makes the living space attractive for the whole family. And not least an ideal place for the children, who need lots of sun- and daylight to grow healthy.
Top lights:
Through the sloped ceiling daylight penetrates down and brings plenty of light into the rooms. A daily life filled with daylight is essential to human metabolism and children’s learning ability and growth. Daylight coming from different directions creates a good and dynamic balance. This makes the living space attractive for the whole family. And not least an ideal place for the children, who need lots of sun- and daylight to grow healthy.
Top lights:
Through the sloped ceiling daylight penetrates down and brings plenty of light into the rooms. A daily life filled with daylight is essential to human metabolism and children’s learning ability and growth. Daylight coming from different directions creates a good and dynamic balance. This makes the living space attractive for the whole family. And not least an ideal place for the children, who need lots of sun- and daylight to grow healthy.
|
|