cap sheet

Noun

(construction) A sheet, often granule-surfaced, used as the top ply of some roof membranes and/or flashings.

Japanese Meaning

建設用語。屋根膜やフラッシングの最上層に用いられる、表面に粒状の仕上げが施されたシート。

Before the inspection, the contractor replaced the worn cap sheet to ensure the flat roof remained watertight.

検査の前に、施工業者は損耗した屋根防水膜の最上層材を交換し、陸屋根の防水性を確保した。

Sense（1）

(construction) A sheet, often granule-surfaced, used as the top ply of some roof membranes and/or flashings.

cap sheets

（ plural ）