Exterior Applications: Commercial

Why use InSoFast's 2.5 Continuous insulation for Exterior Applications?

The EXe 2.5 is the most versatile exterior insulation panel for commercial and residential construction. The EX panel combines all the best features of continuous insulation, double thermal by-pass attachment, built-in rainscreen, R-10+ insulation, insulated studs, self-flashing interlocks, with just one trip to the wall, the panels ready for finishing. A single panel that eliminates endless trips to the wall and multiple parts, pieces, and confusing guess work with the in the field assemblies. Our instructional videos demonstrate approaches that work, we make it look easy, after all because it is easy to do right. Skilled professionals with years of experience or novice carpenters can simply install the interlocking panels with success. 

Too many parts, pieces, and potential problems.Why work this hard with so many pieces?

5 Trips to the wall
25 Parts and pieces
Ready for siding

When you can do this?

1 Trip to the wall.
5 Parts- 1 Panel, 4 Screws,
Ready for siding

EXe 2.5 Features

1One Part Not So Many Pieces
  • R-10 Closed-cell EPS Continuous Insulation
  • Stable insulation with zero thermal drift
  • Built-in Drain and Dry Technology
  • Mold-Resistant, Embedded Stud Framing
  • Tight Interlocking Tongue and Groove Edges
  • Stud framing included attach any finish
  • Why work so hard? When you don’t have too!
2The easiest way to install continuous insulation.
  • Self-flashing panels; no taping seams
  • Simple to install; less parts and pieces
  • No special tools or training needed
  • A measuring tape is optional
  • Lives up to its name: In So Fast
  • 3Rain Screen Insulation
    • InSoFast’s rain screen, “drain-and-dry”
      • Accomplished in two steps, that takes 7 with traditional methods.
    • The InSoFast panel adds a secondary layer of defense.
      • Interlocking Panels self-flashing barrier
      • Self-aligning; straight and true framing
    • The built-in dual drainage planes
      • Allows excess water to, “drain-and-dry”; your building safe and dry.
    • Exterior Rated Moisture Control Tested to;
      • ORSC, Section R703.1.1-approved rain screen and drainage technology
    4Double Thermal Disconnect
    • The panel provides a double thermal and moisture disconnect
    • Uninterrupted continuous insulation (CI)
      • InSoFast goes beyond just “CI”. The fastener that attaches the panel is recessed a ½” reducing thermal shorts to near zero.
      • Fastening the exterior cladding does not penetrate the weather resistant barrier keeping your building secure and dry.
    • EXe 2.5 panel continuous insulation is the best choice for continuous-continuous insulation.

    EXe 2.5 Benefits

    1The easiest way to install continuous insulation.
    • InSoFast takes the complexity out of wall assemblies.
    • InSoFast is maintenance free, and will not rot, rust, warp, or decay
    • Maintains its R-Value in extreme conditions, year after year.
    • Less parts and pieces = less training
    • Assemble Less. Build Better. Exceed Expectations
    2The best Continuous Insulation because;
    • No energy penalty for the studs
    • Non-conductive stud framing
    • No energy penalty for the fastener
    • Thermally recessed fasteners; no cold spots
    • Self-flashing panels; no taping of the board seams
    • Improves house wrap’s performance
    • Non corrosive stud...no rusting
    • Lives up to its name: In So Fast
    3Complete Continuous Insulation
    • One panel built to last
    • Redundancy, improved performance
    • Drains better, dries better, performs better
    • Combines rainscreen, insulation, and attachment
    • InSoFast just plain works better
    • Why work so hard? When you don’t have too!
    4NFPA 285 Cladding Options
    • One detail, one solution
    • Nationwide Code Compliance
    • Rigorous testing and assurances
    • Continuous insulation for nearly all assemblies

    EXe 2.5 video comparison InSoFast vs Complexity (the human factor)
    Video features of the Ex 2.5 continuous insulation panel



    EXe 2.5 Insulated Panel with Studs

    EXe 2.5 Flat Panel Details
    dfx dwg pdf EXe 2.5 zip file
    InSoFast Exterior Architectural Submittal pdf
    Panel Body Dimensions 24in × 48in × 2½in
    Drainage Channel Dimensions 24in × ¼in × ¼in


    8 sq-ft

    R-Value ASTM C518


    Comparable Performance to

    2×4 Wall/R-15 Batts

    ASTM C578 Type II

    Closed-Cell, injection-molded EPS 

    Canadian Standards  CAN/ULC S701 Type 2

    ASTM C303 Foam Density

    1.35 lbs per cubic foot

    ASTM E96 Water Vapor Permeability

     (Class III Vapor Retarder) 3.5perm/in

    Maximum Service Temperature (long term)

    167°F = 75 Celsius (°C)

    Co-Polymer Polypropylene Insulated Stud

    Recessed ½in below Surface

    Interlocking Edges

    Cutting Indication Lines

    Designed Ready for Finishing Attachment

    Both Interior/Exterior (drywall, siding, etc)

    Exterior Rated Moisture Control

    ORSC, Section R703.1.1-approved rain screen and drainage technology on both sides

    Exterior Application

    Interiors Application

    Insulated Stud's Features

    The InSoFast panel studs provide a simplified approach to wall assembly. The InSoFast stud are injection-molded high-strength recycled polypropylene plastic. Next a special co-molding process expands the foam insulation around the studs forming one solid panel. The studs provide a structural attachment point to the substrate and for the specified finishes.


    National Fire Protection Association (NFPA) in the International Building Code states that – wall assemblies shall be tested in accordance with and comply with the acceptance criteria of NFPA 285. InSoFast has tested and passed these stringent guidelines, here are a few of the possibilities that will work with the InSoFast continuous insulation panel. Please contact us for specific details.

    Load Bearing Masonry Assemblies
    NFPA 285 compliant assemblies-cmu-adhered stone NFPA 285 compliant assemblies-cmu-adhered brick NFPA 285 compliant assemblies-cmu-horizontal Nichiha siding NFPA 285 compliant assemblies-cmu-horizontal cement board siding
    Steel Frame Assemblies
    NFPA 285 compliant assemblies-steel framing-horizontal cement clap board siding NFPS 285 compliant assemblies-steel framing-stucco NFPA 285 compliant assemblies-steel framing-adhered brick NFPA 285 compliant assemblies-steel framing-adhered stone

    Technical Video Features of the EXe 2.5 Panel

    InSoFast Plus Method

    Need a higher R-value? No Problem! Start with a base of InSoFast continuous insulation panels that are feature-rich and easy to install and then add rigid foam insulation over top of InSoFast panels.