Residential Interior


Why work so hard? InSoFast takes the worry out of the complex wall assemblies and makes it simple. Insulation is a hidden value you should only have to think about is once. Insulation should be seamless, maintenance free, mold free, save money, work endlessly for your comfort, and finally be invisible.

Simple Installation

  • Most jobs can be installed with little more than a utility knife and a caulk gun. Dovetailed ribs on the embedded studs are designed to be adhered to the walls for a simple installation and improved performance.

Be Comfortable

  • Cool in the summer, warm in the winter. The continuous insulation keeps you comfortable in all seasons, all climates.

Stay Healthy

  • Move along, mold and mildew. Specifically designed channels in the InSoFast body prevent moisture from getting trapped in your walls.

Save Energy

  • Some of our customers have reported a significant reduction in their energy costs after installing our panels. Cut your bills or go off-grid.
  • InSoFast projects may qualify for a Federal Tax Credit up to $500. See for details.

Be Creative

  • Forget compromises. InSoFast supports any finishing option you can dream up. Put up pictures, install cabinets, hang a TV.

One panel –multi-function

  • Insulation-Framing-Vapor Retarder-Layout-Electrical Raceways

It cost Less

  • Basement Cost Comparison

Residential Interior Guides

Engineered Features

InSoFast panels offers an engineered system of continuous insulation perfectly suited for basement insulation. InSoFast panels remove the complexity of the project by providing a single step, a one trip to basement finishing. The InSoFast panel offers the same benefits for other remodeling projects such as over plaster or other wood framed walls.

Continuous Insulation

  • Continuous insulation is the new standard in building today, eliminating the thermal bridging of studs. The injection-molded EPS foam body of the InSoFast panel provides the thermal break needed. There are two panel thickness available: UX 2.0 = 2” and EXi 2.5 = 2-½”.
  • EPS is a non-toxic, inert insulation that maintains its R-value throughout the life of your building. Because it does not off gas or absorb moisture like other types of insulation boards, it is perfect for below-grade applications like basements. The EPS is a fire-retardant material and serves as a Class III vapor retarder.

Built-In Studs

  • Each panel is made with three high-strength co-polymer plastic studs that align every 16-in o.c. The back side of the studs feature a ribbed dovetails surface for adhesive applications against concrete, stone, metal or brick walls.
  • The studs provide a solid surface that can support drywall attachment and cabinets or TVs. The studs are not prone to rot, decay, or moisture damage, and the co-polymer plastic studs do not conduct heat through the wall system.

Self-Leveling Tongue-and-Groove Edges

  • The tight interlocking edges along each panel form a continuous, self-flashing seal. The interlock creates a resilient seal that will not change shape, dry or crack over time. They eliminate thermal leaks and prevent water from reaching the face.
  • The notched alignment system ensures the panels and studs stay aligned during installation even when cut. Indicator lines mark the location of wiring chases on the front face.

Moisture Control

  • Built into the back of the UX and EXi panel is a network of drainage channels. The channels are specifically-sized cavities that direct moisture down the wall.
  • The EXi has a secondary drainage plane on the front face of the panel.
  • The EPS foam of the panel features a permeability that ensures moisture is not trapped in your walls. Like Gortex or Tyvek, the panel allows the wall system “breathe”.

Electrical Raceways

  • Electrical raceways run vertically at 16” o.c. and horizontally at 24” o.c.
  • This grid provides easy access to pull wiring to any location. Located at code-approved depth, the chases also provide the necessary separation from the drywall face to protect the wiring.
  • Now and into the future you can update your electrical with the clear and open channels.

Suggested products for Residential Interiors

EXi 2.5


Closed-cell, injection-molded EPS foam body achieves R-10 insulation.

UX 2.0


Closed-cell, injection-molded EPS foam body achieves R-8.5 insulation

InSoFast Plus Method

Need a higher R-value? It’s easy to increase your R-Value beyond R-10 while maintaining the engineered benefits of the continuous InSoFast panels. Simply add rigid foam insulation board over top of InSoFast panels. This saves money by utilizing locally obtained rigid foam to enhance the R-Value. Additionally, projects can be completed in a fraction of the amount of time because they start with a base of feature-rich, low-labor InSoFast panels.