HydroBlok, an innovator in lightweight, 100% waterproof construction panels for interior and exterior applications, has secured $6 million in an extended Series A round led by Pier 88 Investment Partners, a San Francisco based alternative asset manager, and Andina Capital Partners, the captive investment arm of the Utah based Andina multi-family office. The capital infusion will accelerate HydroBlok's manufacturing expansion in the US, nationwide distribution, and R&D for next-generation products.