Adept Materials, a startup focused on advanced building materials, has closed a $4 million seed funding round led by D.R. Horton and PulteGroup. This investment will support the commercial launch of Adept’s first product, an advanced interior wall paint and primer system, and the development of a directional water-resistive barrier product. The funding will also enable Adept to refine and launch its first product — an advanced paint and primer system that incorporates the company’s proprietary moisture control technology.