interlayment

Etymology

From interlay + -ment.

interlayment means a felt, metal, or membrane sheet material used between courses of steep-slope roofing to improve the weather and water-shedding characteristics of the primary roof covering during times of wind-driven precipitation. Lexicurio rates it Sui generis — a strength score of 92 out of 100.

noun

a felt, metal, or membrane sheet material used between courses of steep-slope roofing to improve the weather and water-shedding characteristics of the primary roof covering during times of wind-driven precipitation.