Increased energy efficiency

Women near window

At Saint-Gobain, we promote a "fabric-first" approach, meaning that the building should first be energy efficient through its highly performing envelope: needs for heating, cooling and lighting should be limited to the unavoidable minimum.



Did you know?


Share of the construction sector in worldwide energy consumption


Contribution of energy efficiency in the effects that decreased the world's energy demand in 2019


Primary energy, final energy, energy need... What is the difference?

  • Energy need: the actual energy you need for a provided service, before the systems and equipment energy losses

  • Final energy: the energy distributed and the bill that will be paid. It incorporates the losses due to the performance of the systems

  • Primary energy: the raw energy bought at country or state level. It incorporates the energy losses due to energy transformation, production and transportation

The different types of energy

What does energy-efficiency mean? 

  • Using less energy to provide the same services (in buildings: heating, cooling, dehumidification and lighting)

  • Energy-efficient buildings have reduced energy need independently of the energy and the equipment that will be chosen.

How to make a building energy-efficient?

  • Promote a fabric-fist approach: ensure the building envelope is highly performing

  • Limit needs for heating, cooling and lighting to the unavoidable minimum

  • Use renewable and decarbonized sources to supply the needed energy

How to measure it?

  • Key indicator: Demand for heating and/or cooling and/or dehumidification (kWh/m².yr according to local context and regulation)

How do we act?

Our solutions contributing to increased energy efficiency:

  • Providing glazing to let the sun in or block it out

  • Insulation to reduce heat loss and summer heat gains

  • Insulation for water pipes and ventilation ducts

  • Smart membranes to improve air tightness and moisture management

  • Render to insulate and provide weather defense