Polyiso Vs Xps Attic

Thermoset materials are generally stronger that thermoplastic due to the network of bonds and are better suited for high temperature applications.

Polyiso vs xps attic.

A thermosetting plastic also known as thermoset is a polymer material that irreversibly cures. Another difference between the polyiso and xps insulation concerns ultraviolet light. For mineral fiber board r values vary between supplier but are around r 4 0 inch significantly less than for polyiso. I think there are two good choices for exterior rigid foam insulation.

Polyiso is compatible with a large number of roof and wall systems too. Xps is degraded by uv light but the facers on polyiso insulation protect the core from such damage. In this video dow chemical rep kevin and i will tell you about the differences between. Polyiso is classified as a thermoset material.

Extruded polystyrene xps is somewhat lower than polyiso. The difference between polyiso eps xps foam insulation styrofoam. We always choose and recommend eps over xps due to the fact that xps has much higher greenhouse gas emissions than eps. So if you are looking for suggestions we would say go for the eps and if you want added protection source one with a foil backing.

Polyiso is a thermoset material meaning it is permanently rigid and cannot be melted back to liquid form. Some of the key attributes are shown here. Xps is classified as a thermoplastic material.