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Foam Foundation Fundamentals 101

Foam board insulation is easy to use and is a great DIY way to add some insulation. These boards come in standard-size 4×8 sheets, and smaller sizes, in many different thicknesses from 1/4 inch to 3.75 inches. Some types of thicker foam board insulation are available, but you may have to special order these.


​In this section, we will be featuring Foam Foundation Fundamental tips that can help you with your next insulation project. This fall, we will be launching a series of EPS King videos on the basics of foam board installation so stay tuned!

You can find  more helpful information on insulation products on

EPS Expanded Polystrene Insulation: Below Grade Testing Confirms R-Value Retention Technical Bulletin on durability performance
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