porttiviiveet
Porttiviiveet, a Finnish term roughly translating to "gate slates" or "door slates," refers to a traditional building material and technique primarily used in older Finnish wooden houses. These were thin, often rough-hewn wooden planks or shingles that were applied to the exterior of buildings, particularly around openings like doors and windows. The primary purpose of porttiviiveet was to provide a transition between different building elements and to protect the more vulnerable edges of structural timbers from weathering and moisture.
The installation of porttiviiveet was a craft skill, with carpenters carefully selecting and shaping the wood