Interesting facts about a new building
Windows characterise a house and provide an important interface to the outside world. Windows are primarily natural light sources, which create a pleasant living environment and promote the well-being of the inhabitants.
Not only Passive Houses help to save energy – the same concepts can be used for conventional construction of new homws and renovation projects. This will result in sgnificant energy savings and a reduction in the CO2 emmissions. CO2 savings. Contact us at EcoHaus Internorm for expert advice.
The energy performance certificate
In the EU, the energy performance certificate has been mandatory in new construction since 2006. The certificate is for your home and includes valuable information such as the energy consumption, heat losses through the individual components and ventilation, energy gains from the sun and the heat load of your building. This information is invaluable when extending or renovating your home.
The most important parameter in the energy performance certificate is the energy index. This represents the most common comparative value to describe the thermal quality of a building and gives information relating to how much heat energy per square meter per year is needed. The energy index is given in kWh/m²a.
Orientation of windows and doors
To get the perfect sun, design the aspect of your windows so that they mainly face South, West or East. Large windows facing south, create a good energy balance and increase the ambient lighting in rooms. Note that weatherproof doors should be installed.
The installation of solar control devices can help to avoid overheating of the rooms. In addition, insect protection systems can be integrated into the windows where appropriate.
Entrance doors facing south that have a dark surface colour can get very hot in summer and this will have an adverse affect on the doors life and operation. Doors facing West will experience more driving rain and should therefore be well protected.
Approximate window and door opening measurements
Window Width: Wall width minus 20 mm
Window-height wall width minus 50 mm
Balcony door width: width minus 20 mm wall
Balcony doors height: distance from the lower edge of the lintel to the top edge of the finished floor minus 10 mm.
Entrance door width: wall width minus 20 mm.
Door Height: distance from the lower edge of the lintel to the top of the finished floor minus 10 mm
To use the standard size a wall opening of 1100 mm width and 2130 mm height is required
What is important
We want to make it easier for you to realise your own ideas to make you feel at home – thanks to your new windows!
Interesting facts about redevelopment
High energy prices, climate change and the introduction of Energy Performance Certificates mean that the investment in sustainable development will pays off quickly. Old “energy systems” can easily and comfortably be replaced with modern, high thermal insulation and efficient heating systems Internorm windows are an example of such a modern replacement system.
Reducing energy consumption at the outset
Studies have shown that a global temperature rise of two degrees is manageable without major economic loss, however more than this and the situatio will become critical. The main cause for global climate change is CO2 emissions. The most effective and most economical way to reduce these emissions, is to take measures that reduce energy consumption right from the start.
This finding is especially interesting if you look at where the CO2 emissions originate: Industry and transport account for about 30% each, however the largest contributor are poorly insulated buildings with 40%.
Between 25 to 30% of the heat loss from a house is through the windows resulting in relatively high energy use to compensate for this loss.The use of modern window technology will reduce the CO2 emissions typically changing 25 year old windows in an average house with 20 windows modern passive house windows will cut the CO2 emissions by almost two tons. When replacing single-glazed windows the reduction in emission is closer to five tons.
Energy Performance Certificate provides incentives for rehabilitation measures
Since 2009, there has been a requirement to provide an energy certification of buildings. The energy certificate is a central element of the EU Buildings Directive and both tenants or buyers can compare and assess the energy efficiency of each building. The energy certificate makes the thermal quality of buildings and the efficiency of the contained energy systems more transparent. Improving your thermal and energy rating will increase the value of your home and become increasingly more important as the cost of fossil fuel rises.
The main points addressed by the energy certificate for a residential building:
Heating demand of the building compared with reference values
Hot water heating requirements
Heating energy demand
Final energy demand
Recommendations for action
Thermal remediation – window replacement with modern Passive House technologies.
Resulting in lower heating costs – energy efficiency and sustainability – more affordable comfort!
Internorm has the products to help you improve the thermal quality of your home.