The “Trias Energetica Concept” suggest that we should first find a way to reduce energy consumption before developing alternative energy source, such as renewable energy. It is possible by avoiding waste and implementing energy-saving measures.
Energy efficient buildings are buildings that have the capacity to reduce significantly the energy used for cooling and heating the building (without considering the energy and the equipments that are used to heat or cool the building). Below we are going to show you the important points that help your building to be energy efficient.
1. Bioclimatic Architecture
This approach takes into account the local climate and environmental conditions in order to develop the best possible way to use environmental sources of energy. In order get the most benefit from natural sources, it is necessary to :
- Have an efficient building shape : reduce the surface in contact with the exterior and the building, interior spaces are arrange according to their heating requirements
- Have an appropriate techniques of enveloping the external of the building (use the correct colors and surface) from solar heat in winter as well as in summer and also to collect solar radiation (which acts as a “free” heating and lighting systems).
The graphic below shows the impact of building shape on annual heating energy for a small building in a cold climate.
Graphic from www.buildingscience.com
2. Thermal Insulation
This technology has proven to be very efficient as it saves energy and also money. It is suited for cold places, as it keeps the building warm and reduce the energy needed for heating. It is also greatly efficient for hot regions, as it keeps the heat out from the building and reduce the need for air conditioning.
Check this website to see what sort of insulation to use.
Photo from www.homebuilding.co.uk
3. Air Tightness
Air leakages should be reduced at maximum in order to have a comfortable and energy efficiency buildings. During the design and construction stage, great attention must be invest to seal gaps.
Most existing and recently built buildings are far from being airtight and create financial and environmental costs. A “leaky” building needs more energy for heating or cooling and allow humid air to penetrate, degrading the structure of the building and the effectiveness of the insulation.
Image from www.corbwell.ie
This is a system controls the penetration of air through the building and allows to deliver fresh air and take out stale air in combination with the designed heating system and humidity control, and the fabric of the building itself.
To learn more of the importance of ventilation, visit this website.
Image from www.completecoolroofsystems.com
Shanghai Metal Corporation is an expert manufacturer and supplier in the production of building material. To help you build energy efficient building, we can provide you with our top quality materials, such as mineral wool for thermal insulation. We also accept any challenging construction projects and will be glad to help you. Visit our website to see more and contact us if you need further information. Also follow us on social media to discover and be updated of our new products.
Ayu P.//SMC editor