Lightweight concrete is one solution, but another is Expanded Polystyrene (EPS) foam. Its light weight makes installation simple in anything but a strong breeze, and it’s inexpensive and durable.

ACH Foam Technologies’ EPS Foam-Control Plus+ absorbs less moisture and retains its R-value better than XPS alternatives. Click here for high-resolution version ·Marketwired Marketwired Tue ...

Legalett EPS is one of the more benign foams because they use pentane as a blowing agent, which is not a significant greenhouse gas. In some cases it is available without flame retardants, and ...

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