Building Science Deconstructed: Foundation Floors with Justin Wilson

Justin Wilson from Construction Instruction explains the physics behind moisture control and how builders can effectively protect basements from moisture through the use of DELTA®-FL - an impermeable, High-Density Polyethylene membrane designed to keep basements dry.
About Justin Wilson:
One of the industry experts of Construction Instruction, Justin Wilson works with national and regional builders on new construction of residential and commercial buildings and forensic investigations on building sites all over North America to find solutions to problems in the building process that affect energy, comfort, and durability. He also uses this insight to work with leading building product manufacturers on new product development, product refinements, and installation and maintenance guidelines.
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[@bamc3835]

what dorkin product could i use to avoid mold issues for a one-story slab on grade foundation? we don’t have a basement for this home build

[@Mfgguy]

Could this be used on basement walls too?

[@coselladorken]

The primary difference between DELTA®-FL and DELTA®-MS is that DELTA®-FL contains 100% virgin polyethylene, whereas DELTA®-MS contains 60% recycled. Using any recycled polyethylene for an interior application brings with it the risk of odors. Recycled plastic can retain the odor or whatever was in it originally, like sour milk or bleach. Whether or not there is odor cannot be controlled in the manufacturing process (meaning it might smell or it might not), but does not matter for exterior below grade use, like with DELTA®-MS. If you want to use any product on the interior, walls or floor, we recommend virgin polyethylene to avoid the chance of odor. Interior wall applications should be done very carefully and made air-tight to prevent the ingress of soil gases and moisture.