Yläpohjissa

Yläpohjissa is a Finnish term used mainly in technical discourse to denote spaces, components, or positions located in the upper part of a structure, such as an attic or the upper structural layers. The root is yläpohja, a compound of ylä- meaning “upper” and pohja meaning “base” or “foundation.” Yläpohjissa is the inessive plural form, indicating “in the upper bases” or “in the upper part(s).” The word is most common in construction, architecture, and building sciences, and is rarely encountered outside professional contexts.

Etymology and morphology: The term combines the prefix ylä- with pohja to form a noun that refers to an upper base or deck, and the suffix -ssa/-ssä marks the inessive case in singular or plural forms. In its plural inessive form, it becomes yläpohjissa, aligning with Finnish grammar rules for nouns in the inessive plural.

Usage and scope: In building descriptions, yläpohjissa refers to elements located in the roof space or upper layers of a structure, such as insulation, ventilation, or electrical runs installed in attics or upper cavities. In other technical fields, the phrase may appear in similar senses when distinguishing upper portions from lower ones. The term is typically context-dependent and may be replaced by more specific terms like yläpohja, yläpohjarakenteet, or tilat yläkerroksessa when precision is required.

Examples: Lämpöeristeet ovat yläpohjissa. Vesieristys sijaitsee yläpohjissa. See also: ylä- prefix, pohja, inessive case.