Install XPS or EPS Insulation

According to the densities of the two boards, the compressive strength of XPS is generally greater than the compressive strength of EPS. In order for EPS to achieve the same compressive strength as XPS, the density of the foam would need to be increased, which would necessitate the use of thicker boards, which would result in increased costs.

What applications would you have for XPS insulation?

Companies are now reporting the Long Term Thermal Resistance (LTTR) of their XPS products in order to account for the decrease in r-value that occurs over time. With its increased stiffness and rigidity, XPS is well suited for use on roofs, below grade, below slab, and a variety of other applications.

Is XPS foam a vapor barrier in the true sense of the word?

Both unfaced and different plastic facings are available in the XPS manufacturing process. XPS, on the other hand, is considered a vapor retarder rather than a vapor barrier.

Is it true that EPS insulation absorbs water?

EPS is non-hygroscopic, which means that it does not readily absorb moisture from the surrounding environment. The closed-cell structure of the insulation material helps to reduce the absorption and/or migration of moisture into the material.

Is it true that XPS insulation absorbs water?

Products made of XPS have an R-value of 5 per inch of thickness, and because of their closed cell structure, they are resistant to water absorption, allowing them to keep their high R-value over time for dependable long-term service.

What type of insulation is the most effective for crawl spaces and basements?

The rigid foam insulation board is the most effective type of insulation for crawl spaces. As an alternative to installing the foam insulation between floor joists in the crawl space, the foam board insulation is installed against the crawl space foundation walls instead.