"The ceiling of that room is very high."

[djzeus01]

Should "altega" be equivalent here, or does it have a specialized meaning?

[MrMorley3]

"altega" would be fine here. Report it as an alternative answer.

[arbaro]

I'd say it works. :)

[aniruddha.19]

Mi ne memoris 'plafono'n.uzis 'malplanko 'n. Ne estis korekta!

[IvanDavidson]

Why is it Tiu and not Tio? Is it because it is specified which room it is?