Sika Rmax has a solution that could “save the day” and ensure both commercial and multi-family projects with steel stud construction stay on track using a polyiso insulation board – Rmax ECOMAXci FR Air Barrier. Mineral wool insulation boards are typically chosen for their non-combustible properties and permeable exterior assembly. However, considering NFPA 285 compliance and moisture management, these properties become less crucial. Additionally, rain screen claddings, commonly used for combustible applications, are not ideal for mineral wool due to their tendency to retain moisture, leading to a decline in effectiveness over time.
Substituting with Polyiso has myriad benefits, including higher R-Value, water and vapor resistance, faster installation, sustainable impact and immediate availability. Compared to mineral wool, Rmax Polyiso offers a thinner profile for the same R-value, lower cost and superior performance over time. And compared to XPS, Rmax Polyiso boasts higher R-values, faster installation and reduced attachment complexity.
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