Centre Avenue Health & Rehab, Fort Collins, Colo.
Retrofit Team
ROOFING CONTRACTOR: Roof Restoration Inc., Frederick, Colo.
Materials
On the low-slope sections between the standing-seam metal roofs, the existing black EPDM membrane was covered with a white silicone reflective coating, which was applied with rollers to the wall flashings and around penetrations prior to the field membrane being restored. All metal coping was masked off prior to the application.
SILICONE COATING MANUFACTURER: GE Silicones
The Retrofit
After a rain shower resulted in leaking, the contractor saw the fully adhered EPDM roof system on the roof’s flat sections was exhibiting signs of oxidation. Several stress fractures were visible, too. Rather than replace, the facility opted to restore the roof with a high-solids silicone coating. This project encompassed 21,863 square feet of low-slope roof on 10 separate roof levels. The restoration process protects the membrane from further UV degradation. It also substantially lowers the roof’s surface temperature; the white roof surface temperature has never exceeded 105 F.
Because the application has no fumes or toxic chemicals, the site could remain open to patients during the project. Logistics were complicated, however. Cranes brought materials to the roof and hauled away trash and debris. The crew staged material in three different areas so the roof was not overloaded and to optimize efficiency. Workers temporarily moved more than 300 2- by 2-foot concrete pavers (each about 90 pounds) out of the way to complete the walkway areas.
Photos: Roof Restoration Inc.