Is that damp patch on the gable coming from the roof, or is it just condensation?

How to say “Is that damp patch on the gable coming from the roof, or is it just condensation?” in Japanese

In Japanese

妻壁(つまかべ)のこのしみ、雨漏(あまも)りかな、それともただの結露(けつろ)？

Tsumakabe no kono shimi, amamori ka na, soretomo tada no ketsuro?

Is that damp patch on the gable coming from the roof, or is it just condensation? in other languages