The Greek that is translated in English with “remove the roof” is translated into Avaric with an existing term: t’ox bichize. “Demolishing a roof in order to reach the interior of a house is an entirely familiar action, used, for example, in assaults on strongholds and fortified buildings in wartime; there is even a special phrase for this in Avaric (t’ox bichize).” (Source: Magomed-Kamil Gimbatov and Yakov Testelets in The Bible Translator 1996, p. 434ff. .
In the German New Testament translation by Berger / Nord (publ. 1999) it is translated with the professional term Dach abdecken or “unroof.” In Luke 5:19, the Greek text only implies the removing of the roof but Berger / Nord add deckten einige Ziegel ab or “remove some roof tiles” for clarification.
See also Mark 2:1-12 in Russian Sign Language.
Learn more on Bible Odyssey: Is there precedent for coming in through the roof in Mark 2:1-12 .