Plastic subfloor systems.
This air-gap membrane is made up of a special high-density polyethylene resin (FDA approved), providing a dimpled surface with outstanding compressive strength, impact resistance and long-term performance.
DELTA®-FL is a uniquely dimpled, heavy-duty grey plastic membrane that keeps you and your family warm and comfortable in your basement, or any room in the house with a concrete, slab-on-grade floor. The membrane is installed with its dimples down to create a 5/16-inch thick air space above the slab, and can be covered with a plywood subfloor and topped off with carpet or flooring systems.
DELTA®-FL on concrete floors protects sensitive materials by exploiting the concept of vapor pressure - that is, water vapor seeks to equalize its pressure by moving from areas of high pressure to areas of low pressure.
In a conventional basement, dry air in the living space acts as a magnet for water vapor seeping up through the concrete. But with the DELTA®-FL system, the space between the dimples provides a sufficient air-gap to equalize the water pressure above and below the concrete slab.
Though the air in the living space is completely isolated from the system, DELTA®-FL is designed to allow small amounts of water vapor into the room to maintain a healthy humidity level.
The membrane also provides a thermal break that generates instant comfort and warmth for your basement. DELTA®-FL is an inert material. The air-gap membrane has an outstanding compressive strength of > 250 kN/m², is extremely tough and rugged and can withstand heavy loads which allows for any finishing on top of the membrane.
The reduction in head room is minimal and the product is extremely easy and fast to install. DELTA®-FL comes with a 20 year product warranty.
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I just wanted to share a quick note and let you know that you guys provide an outstanding service on our projects. Having worked with Delta since 2005, I really cannot say that there has ever been a time when you have not treated my project with the same importance as I do, always delivering on your commitment, working effortlessly with our consultants and providing a first class install. Schedules are met, prices are honored and workmanship standards exceeded. I work hard to build solid relationships with our trades and suppliers; Kee and his team reciprocate in the best way possible: They say what they do and then do what they say. Thank you, we couldn’t wish for a better business partner!