kerroinhän

Kerroinhän is a traditional Finnish building material, commonly used for the exterior cladding of buildings and walls. The term kerroinhän is derived from the Finnish phrases 'kerros', meaning layer, and 'hän', referring to a specific layer or treatment.

Traditionally, kerroinhän consists of multiple layers of wooden boards or planks arranged perpendicularly to each other. This layered structure allows for better thermal insulation and adds structural stability to the building. The wood boards are typically made from aspen or other types of wood, which are lightweight and resistant to decay.

The application of kerroinhän as a external wall covering provides several functional benefits. It enhances the building's thermal insulation properties, reducing heat loss and the need for external heating sources. The use of kerroinhän also enables the creation of raked or latched distillation mechanisms, which aid in protecting the building envelope from water invasion and wind chill.

Historically, the kerroinhän system was developed by Finnish builders as a building technique in temperate and boreal environments. Its widespread adoption is attributed to its adaptability, thermal efficiency, and wind- water resistance properties. It is considered an essential aspect of traditional Finnish building craftsmanship, displaying the ingenuity of Finnish construction techniques. The use of kerroinhän elements has continued to influence the design of Finnish dwellings, adding an elemental aesthetic dimension to rural and town settlements. Over the years, it has been observed to be replaced with often more ornamented modern materials, but its durability properties remain a testament to its dependability as a source of external cladding for homes.