Thermal insulation by UNILIN
For over 30 years, UNILIN has been making roof panels with polyurethane insulation for pitched roofs. Based on its extensive experience and technological know-how, UNILIN has expanded its range with bare insulation boards made from polyisocyanurate (PIR).
R value and U value
The insulation value of an insulation product is expressed through its heat resistance or R value. This is the amount of heat the material stops (in relation to its thickness). The higher the R value, the less heat loss and the better the insulation properties.
The insulation value of a construction with insulation, such as a roof element, is expressed through its heat transfer coefficient or U value. The amount of heat that passes through a construction (e.g. the roof). The lower the U value, the less heat loss and the better the insulation properties.
‘Trias Energetica’ is a term that describes the logical three-step strategy adopted in constructing an energy-efficient building:
1. Reduce the building’s energy demand. Start by insulating the building properly, consider using a compact building form and avoid energy loss due to a lack of airtightness
2. Use as much sustainable energy as possible. Now that the energy demand has been reduced to a minimum, you can start thinking about how to generate that energy. Where can sustainable energy be used
Use fossil fuels in the most efficient way possible. When sustainable energy sources are not an option, fossil fuels must be used. Look for efficient techniques and systems.
Reduce the energy demand
To reduce the energy demand of a dwelling, its insulation must be improved. After all, the cheapest energy is still the energy you’re not consuming. Airtightness is also key. The approach depends on the specific situation. That is why you should consult experts such as your contractor and/or architect.
It all starts with a properly insulated building envelope*, because (ideally) you only insulate your home once!
With optimal insulation, your living comfort improves and your home retains its value.
This is a sustainable and sensible investment.
*Building envelope = The building envelope separates the living space from the outside world. It consists of the roof, facades, floors, windows and doors
Energy-efficient building = Insulation + airtightness + ventilation + heating installation
To build energy-efficiently, you need to insulate thoroughly, take airtightness into account and ensure ventilation so an energy-efficient heating installation will be able to meet the heating requirements of your home.