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Underlayment vs Membrane - What's the difference?

underlayment | membrane |

As nouns the difference between underlayment and membrane

is that underlayment is something that is underlaid, such as planking in a room of a house; underlay while membrane is membrane.

underlayment

English

Noun

(en noun)
  • Something that is underlaid, such as planking in a room of a house; underlay.

    • membrane

    English

    (wikipedia membrane)

    Noun

    (en noun)
  • A flexible enclosing or separating tissue forming a plane or film and separating two environments (usually in a plant or animal).
  • A mechanical, thin, flat flexible part that can deform or vibrate when excited by an external force.
  • A flexible or semi-flexible covering or waterproofing whose primary function is to exclude water.

    • Derived terms

    * neomembrane