Waterproofing and Moisture Management

InSoFast panels manage water in two ways. First, they prevent water transfer in order to keep dry walls dry. Second, they redirect the flow of trapped water in order to let damp walls become dry. These are two processes that play significant roles in maintaining a healthy living environment.


  1. Prevention
  2. The body of the InSoFast panel is a closed-cell EPS barrier. This barrier works much the same way as a beverage cozi on a hot day. The uninsulated surface of a cold can collects little beads of moisture due to condensation from the warm atmosphere. Slip a cozi over the can and it acts as a thermal barrier. The atmosphere stays warm, your drink stays cold and moisture stops collecting on the surface because the temperatures between the two have been balanced by the barrier.

  3. Redirection
  4. The back of the InSoFast UX 2.0 panel features a series of drainage channels that prevent water from becoming trapped in a wall system by allowing it to flow out. These channels are specifically-sized cavities that moderate wall pressure so that the wall assembly is continuously drained. Adding a perimeter drainage system to your basement improves the functionality of these channels by providing a space for the water to escape. You may also wish to consider a system for Active Dampness Control (PDF, 740kb).

Recommended Waterproofing Products

Drylok Extreme Waterproofing


Drylok Extreme Masonry Waterproofer is tested and approved for use with InSoFast Panels (see related information below).

A flexible encapsulated polymer providing the next generation in waterproof coatings. This smooth waterproof paint is perfect for the most demanding conditions including interior, exterior, above or below grade masonry walls, basement walls, retaining walls, foundations, landscape walls, cinder blocks, concrete blocks, bare concrete swimming pools, stucco and brick. It is specially formulated to resist mildew growth on the paint film. It has ability to prevent 12psi of water pressure or a wall of water greater than 26 feet high! Passes ASTM D-7088 Resistance to Hydrostatic Pressure and ASTM D-6904 Resistance to Wind Driven Rain.

Emecole Pene-Seal-Crete


Pene-Seal-Crete is easy to install and will penetrate up to 3 inches into concrete walls. It helps seal out water vapor and soil gasses like radon when applied according to the manufacturer’s instructions. According to the EPA, the number one cause of lung cancer in non-smokers is radon gas. Pene-Seal-Crete reduces the presence of radon in a home by reacting with concrete’s free lime and forming an expanded crystalline structure beneath the surface. This process fills pores, voids and cracks within the concrete that may or may not be visible to the human eye. It may also be used to permanently densify, strengthen and waterproof new and existing concrete.

Consider sealing concrete floors, as well. If you are doing new construction, it should have a vapor barrier (6 to 15 mill poly) installed directly underneath the slab to help prevent moisture and soil gasses from entering through the slab. If you do not have a vapor barrier under the slab, the use of a moisture and radon sealer such as Pene-Seal-Crete will help create a healthier interior environment.

Related Information