Wooden Homes Use Less Energy for Heating

Why this is here: A wooden wall isolates roughly 400 times better than a steel wall, significantly reducing heat loss from buildings.

In France, builders are increasingly using wood for construction due to its superior thermal performance. Wood’s cellular structure traps air, insulating about 12 times better than concrete and 400 times better than steel. This natural insulation lowers a home’s theoretical heating needs from the start.

Wood construction, particularly using timber framing or CLT panels, nearly eliminates thermal bridges—spots where heat escapes—which can account for up to 20% of heat loss in traditional buildings. Insulation like wood fiber or cellulose is placed directly within the wooden structure, creating a continuous, even barrier.

Wood also possesses thermal effusivity, quickly balancing with indoor air temperature. Unlike cold brick or concrete walls, wood’s warmth allows residents to lower thermostats by one to two degrees without sacrificing comfort, saving roughly 7% on energy bills.

Precise prefabrication and airtight seals further minimize heat loss, often qualifying these homes for passive house standards. Homes built with wood can save 20 to 40% on heating costs.