Mecosta Medical Care Building in Big Rapids, MI Written by dewardknapp on March 20, 2019. Posted in Replacement Roof. PVC Roof Installation The completed Sika Sarnafil PVC roof installation project at the Mecosta Medical Care Building in Big Rapids, MI.This view shows the special treathment for roof penetrating services and exhaust vents.Bloxsom roofing is able to accommodate complex roof features in PVC installations.Electrical service at this medical building are through the roof utilities structure.The PVC roof installation had to be accomplished without disturbing operations, including specialized medical ventilation systems.The PVC roof provides an economical solution for aging flat roofs.The treatment of vertical surfaces in this PVC roof installation are visible in this photo.Electrical and ventilation services on the roof.The roof consists of multiple horizontal surfaces at different levels.Completed PVC roof on the lower level of the Mecosta Medical Care Building in Big Rapids, MI. Previous Next