valaistettava

Valaistettava is a Finnish term used primarily in architecture, construction, and lighting design to denote something that is to be illuminated. It is formed from the verb valaista, meaning to illuminate, with the participial suffix -ttava, which conveys that the action is to be performed or is planned for the future. The resulting form can function as an adjective or as a nominalized participle.

In practice, valaistettava refers to surfaces, spaces, or objects that are intended to receive lighting in a plan or design documentation. Common expressions include valaistettava pinta (surface to be illuminated) and valaistettavat kohteet (systems or elements to be illuminated). The term signals prospective lighting work rather than already completed illumination.

Grammar and usage notes: as an attributive participle it agrees with the noun it modifies in number and case, e.g., valaistettava pinta, valaistettavat pinnat. It can also be used as a noun in contexts like rakennussuunnitelma, jossa on määritelty valaistettavat alueet. Its use is largely technical and situational, typical of architectural briefs, electrical plans, and lighting specifications.

Etymology and related terms: the word combines valaista with the suffix -ttava, which conveys obligation or anticipated action. Related Finnish terms include valaistus (lighting), valaistussuunnittelu (lighting design), and valaistusprojekti (lighting project).