Delta DELTA-FL Moisture-Resistant Flooring Underlayment Roll

A premium polypropylene underlayment designed to create a sealed vapor barrier over concrete floors, keeping basements warm and dry. The dimpled DELTA-FL membrane installs quickly and provides a strong, even subfloor with minimal height increase.

Key Features:

• Moisture Protection: Sealed vapor barrier helps prevent moisture rise from concrete slabs
• Basement Comfort: Thermal break makes floors feel warmer and drier
• Strong Subfloor: Provides a durable, even base for laminate installations
• Low Profile: Adds only 5/16-in (8-mm) to floor height for minimal headroom loss
• Easy Installation: Roll format with tape seams for fast, straightforward setup

Specifications Table:

Frequently Asked Questions (FAQ):

Q: What flooring types can be installed over this underlayment?
A: Laminate flooring can be installed directly on DELTA-FL; use appropriate subfloor panels where required by local codes.

Q: Is it mold and mildew resistant?
A: Yes, the polypropylene membrane is moisture, mold, and mildew resistant.

Q: How thick is the underlayment and how much height will it add?
A: The membrane thickness is 0.3125 inches and adds approximately 5/16 inch (8 mm) to floor height.

Q: What is the coverage per roll?
A: Each roll covers 328 sq ft (4.75 ft W x 65.5 ft L).

Q: Does it provide sound reduction?
A: Yes, it offers sound absorbing properties with an IIC rating of 20–25.

Elevate the Basement: A Warm, Dry Foundation for Luxe Floors

DELTA-FL lays a sleek, dimpled foundation that transforms chilly concrete into a cozy canvas for refined finishes. Its discreet profile delivers a clean, even base while quietly guarding against moisture. Pair it with rich laminates for a seamless, sophisticated look—your floors will feel warmer and more inviting. Consider it the essential first layer for effortless, luxurious living from the ground up.

Create a warmer, drier, and stronger floor—add Delta DELTA-FL underlayment to your project today.