VaporBlock® products are high performance in-wall and under concrete slab moisture retarders. Selecting a premium vapor retarder saves time, money and energy by reducing moisture migration under concrete, foundations, inner walls, basements and ceilings. They are made from state-of-the-art polyethylene resins for superior physical and performance properties including: high puncture resistance, tear strength and long-term protection from unwanted moisture. We have a wide variety of vapor retarder products to choose from that are readily available.