Tag Archives: extruded polystyrene XPS

All that Glitters is Not Gold: How Stable is your R-Value?

By: Doug Wehrwein, Sales Representative It’s generally understood that extruded polystyrene (XPS) offers more initial R-value per inch than expanded polystyrene (EPS) yet because of its lower cost, EPS offers a better value. Are you aware that XPS manufacturers use … Continue reading

Posted in Below-Grade Insulation, Sheathing & Wall Applications, Perimeter & Below-Grade Insulation, Roof Insulation | Tagged , , , , | Leave a comment

Roofing Insulation: Impact of Temperature on R-Value

By: Tamara Middleton, Sales Representative Most flat roof commercial buildings today use one of three insulations, polyisocyanurate (polyiso), extruded polystyrene (XPS) or expanded polystyrene (EPS).  These insulations are used above the roof deck and protected by the roof membrane.  Polyiso … Continue reading

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