The building’s envelope is your first and best opportunity to defend against energy loss and moisture damage. Due to traditional building practices, and limited exposure to more effective, state-of-the-art construction practices, most builders are not doing everything they can to build the best thermal envelope possible.

The Extruded Polystyrene Foam Association (XPSA) is here to help – with extruded polystyrene rigid foam (XPS) insulation products. Products that are lightweight, yet strong, and versatile! When deployed effectively, these products may help home and commercial building owners reduce utility bills. At the same time, and for the same or less cost, XPS insulation used as a weather-resistant barrier can assist in ensuring your home or building minimizes the possibility for moisture-intrusion into the exterior walls and thus the subsequent damage that can occur as a consequence.

Extruded polystyrene foam (XPS) insulation.

Energy Efficient
Moisture Resistant
Environmental Benefit

Take another look at the role of common components in a wall, roof, basement or foundation system to see how it stacks up. For maximum performance, you’ll notice that rigid XPS insulation helps to cover everything … from below-grade to the roof – XPS covers everything!

Here is just one example of how well XPS performs and compares with other components used in wall applications–especially exterior sheathing. Be sure to check the rest of our website for other applications and the benefits derived from their use.