Low Cost: When comparing other rigid insulations, EPS is hands down the lowest cost per-dollar. Another way to look at this is that Expanded Polystyrene offers the highest R-Value per dollar over other types of rigid insulation.Oct 11, 2017
How much does polystyrene insulation cost?
Is EPS better than XPS?
XPS, at about R-5 per 25 mm, has only a slightly better thermal performance than EPS. The thermal insulation performance of EPS and XPS in identical densities is quite close. However, EPS with the same level of density is less expensive.Sep 3, 2016
What does foam board cost?
The cost of foam board insulation ranges from about 30 cents per square foot to close to $1.00 depending on the type and thickness of the board. When an insulation contractor installs the insulation, the total cost of materials plus installation is $1.50 to $5.50 for most projects.