Underlayment/subfloor options over uninsulated slab

Old 11-04-20, 06:00 PM
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Underlayment/subfloor options over uninsulated slab

I知 having a vinyl 4 season sunroom over a non-insulated slab and plan to install vinyl plank flooring. I知 wondering which option I should choose under the floor and why. Some options I知 considering include the following:

Dricore r+ subfloor

DMX or delta dimpled plastic underpayment

basic vinyl plank underpayment like this Soft and Sound 100-sq ft Premium 1.5 mm Flooring Underlayment https://www.lowes.com/pd/SMARTCORE-Soft-and-Sound-100-sq-ft-Premium-1-5-mm-Flooring-Underlayment/1000666103

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