The use of sandwich panel wall systems can speed up construction cycles for large commercial and industrial projects. The light, prefabricated panels can be easily transported and quickly erected on site, allowing other trades to begin work immediately. In facilities such as data centers where every additional day of uptime counts, these fast-track construction methods can help improve and accelerate return on construction investment. However, while sandwich panels with mineral wool cores exhibit excellent performance during wall-certification fire testing, adding building service penetrations greatly impacts their fire performance and requires separate test certifications.