The wall structure of Kero thermal log house is design protected and based on the traditional dovetail joint. Between the sturdy wooden surfaces of the log lies a wood fiber insulation with excellent heat-insulating capabilities. The external wall meets all heat insulation requirements without any extra insulation so typical to log houses.

The fiber insulation used in Kero log houses absorbs and releases moisture just as wood itself. The compact insulation prevents air flow inside the walls and eliminates the need for a separate vapor barrier plastic or wind break plates.

This insulation does not emit harmful dust, or irritate our system. It is of the utmost importance that heat insulation can be managed safely during the construction phase.






No complex layered structures with plastic vapor barriers.
Massive wood structures do not contain harmful chemicals in any form.
The products are designed to facilitate the use of alternative heating solutions.


Reduced carbon footprint.
Wall structure free of vapor barriers stabilizes air humidity and keeps indoor air pleasant also in winter.
Breathable logs improve indoor air quality.
Structures do not contain any hazardous substances.
No substances that have harmful effects on human health or nature are used in the production.


Structures are designed as simple as possible.
This enables efficient and cost-effective production.
Heating energy consumption is low.

If the structure of the house is not breathable, indoor air quality is totally dependent on ventilation.


Breathable and tight structures improve the quality of indoor air. These structures let oxygen and carbon dioxide pass through. Thus Kero log houses are not "bottles" but act in a natural fashion.