Can I place bare or prepainted Galvalume sheet next to a concrete foundation footer?
Direct contact with the concrete footer is not recommended for either bare or prepainted Galvalume sheet. Water can accumulate at the crevice between the Galvalume panel and the footer, causing corrosion at the cut edge. Ideally, sill plates should be used on concrete foundations to avoid direct contact with the foundation and to drain water away from the edge of the panel. Also, the siding panel should not be in contact with the sill plate. Sill plates should be tilted slightly away from the building to avoid trapping water and providing for drainage away from the edge of the panel.
