underlapping

/ˌʌndərˈlæpɪŋ/
noun
  1. The act or state of one thing extending partly beneath another, especially in construction or roofing.
    • Proper underlapping of the tiles is essential for a weatherproof installation.
    • The contractor checked the underlapping of the insulation layers before sealing the wall.
    • The underlapping of the shingles prevents water from seeping through the roof.
Antonyms
adjective
  1. Positioned so as to extend partly beneath something else.
    • The underlapping layer of fabric adds extra strength to the seam.
    • Use underlapping strips to secure the membrane to the roof deck.
    • The underlapping edge of the carpet was tucked neatly under the baseboard.
Antonyms
What does "underlapping" mean? | whatsthatwordmean | whatsthatwordmean