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Posted by DT on December 11, 2006, 4:46 pm
>I'm thinking about installing a floating laminate floor in part of our
>basement, over existing vinyl tile/concrete. The basement is 50+ years
>old and dry, block walls are properly insulated and finished, but of
>course the floor is cold because they did not insulate under slabs back
>then. What's the best way to add a layer of insulation under the
>laminate? Options might be Reflectix (foil-faced bubble wrap) or rigid
>foam perhaps, but ideally not more than 1/2" because we're working with
>7' ceilings.
The radiant barriers like Reflectix depend on a trapped air layer for the
majority of their claimed R value, so that wouldn't perform very well. Your
sleepers are going to be at least 1x's (3/4" thick) so you can place 14 1/2"
wide strips of 3/4" rigid foam between them. You can pick up R 5 or 6 this way.
--
Dennis
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