Epoxy San Diego
What it is: Hold-downs are all-thread seismic anchors usually 3/4″ diameter which are embedded into the concrete footing as determined by the design engineer usually 18″ and secured with epoxy resin. Anchor bolts are all-thread seismic anchors most for shear walls most commonly 5/8″ diameter embedded into the concrete slab/footing usually at 5 to 8″.
What it does: Hold-downs minimize the forces of lift during seismic wave energy. Anchor bolts reduce the effects of shear or lateral movement during the event of an earthquake.
What we do: Check the hammer drilled holes for the plan required depth, wire brush and air compressor cleaned, epoxy type, lot number, and expiration date. We will provide as needed; a CA State civil engineer stamped report combining inspections performed and all substantiating reports.