The phrase "an underlay" is correct and usable in written English.
It can be used in contexts related to flooring, textiles, or any situation where a layer is placed underneath another layer for support or insulation.
Example: "Before installing the new carpet, make sure to place an underlay to provide extra cushioning and soundproofing."
Alternatives: "a base layer" or "a sublayer".
The chardonnay is tart and steely, with an underlay of rich butterscotch.
The decoration is of brass covering an underlay of red wool fabric.
What kept Mr. Lehman's tunes from skewing too cerebral was an underlay of jagged rhythm.
Measured treads and strongly emphasised pedal points suggested an underlay of ritual grandeur; transparency in strings and woodwind brought fervent inwardness to moments of repose and contemplation.
Mr. Kirby noted that most building codes mandate the use of an underlay, but he suggested that homeowners make sure that happens.
The show has an underlay of sex hunger that keeps breaking through the period repressions like daisies through cracks in the cement.
Our solution is to have laminated cork with an underlay of 10mm of cork insulation sheet from Biofa everywhere downstairs except the shower room and sunspace.
In this paper, we investigate the problem of power control in an underlay CR network where the CR nodes are capable of full-duplex (FD) transmissions.
At some point, however, an actor's looks and temperament would merge with a role that brought out, perhaps, an underlay of humor or menace, and the public would take notice, get excited, and the actor would become a star.
What unites the writing of Leigh, Tinniswood, Bennett, Aherne and Cash is that the comedy has an underlay of darkness, and, although she would have wished it otherwise, Smith had easy access to melancholy.
The important feature to include during construction is an underlay, which can be made of a variety of materials and is installed on top of the sheathing along the eaves to keep moisture out.
