Achieve Better Thermal Resistance
With The Most Advanced Wall Sheathing

Better Thermal Resistance Board (BTRboard) is an insulated wall sheathing product that combines OSB, fire-resistant OSB, or Type X exterior gypsum sheathing with low-absorption thermoset foam core in one product, eliminating extra layers and streamlining construction.

BTRboard
Composition

1

Fiberglass Facer

2

Polyiso Foam

3

Substrate Layer

1
2
3

1. Inert Fibreglass Facer

  • Increases structural shear strength
  • Mould, moisture and fire resistant
  • Limits foam shrinkage

2. Medium Density Thermoset Foam Core

  • Moisture, fire & chemical resistant
  • High dimensional stability
  • Strong compressive strength (up to 20 PSI)
  • 14% bio-based content
  • ~30% better R-value* per inch than EPS insulation

3. Substrate Layer (material varies per application)

  • Rigid substrate works as nailing surface

* R-Values dependent on thermoset foam core

Build Better With
BTR Board Wall Sheathing

Wall Construction Comparison

BTRboard enables builders to achieve code-compliant effective R-values using 2×4 construction, or exceed it with standard 2×6 construction. A BTRboard wall with 2x4s at 16″ o.c. and R-12 batts delivers an effective R Value of 17.4; meaning less lumber, less insulation, and a simpler assembly.

Conventional Wall Sheathing

VS

Effective

R-15.8

2x6 Wall Studs
R-19 Batts
OSB Sheathing

BTRboard-wall-assewmbly-2x4

Effective

R-17.4

2x4 Wall Studs
R-12 Batts
BTRboard OSB

BTRboard Insulated Wall Sheathing

A 2x4 BTRboard wall performs UP TO 10% BETTER than a standard 2x6, saving cost and maximizing floor space!

Conventional Wall Sheathing

VS

Effective

R-15.8

2x6 Wall Studs
R-19 Batts
OSB Sheathing

BTRboard-wall-assewmbly-2x6

Effective

R-22.3

2x6 Wall Studs
R-19 Batts
BTRboard OSB

BTRboard Insulated Wall Sheathing

A 2x6 BTRboard wall can achieve UP TO 40% BETTER effective R-value than a standard 2x6 wall assembly, using the same amount of framing lumber.

1

7/16” OSB Wall Sheathing

2

1 3/16” Medium Density Thermoset Foam Core

3

Fibreglass Facer

  1. 7/16” OSB Wall Sheathing
  2. 1 3/16” Medium Density Thermoset Foam Core
  3. Fibreglass Facer

BTRboard OSB | Up to R-8.75

Our flagship product. BTRboard panels provide an innovative alternative to conventional building methods, while meeting or exceeding building codes.

  • Code compliant exterior wall insulation adds up to R-8.75 to wall assemblies
  • 2×4 wall assemblies using BTRboard OSB can perform up to 10% better than standard 2×6 walls
  • Easy installation over standard assemblies without extra labour or material strapping for standard vinyl siding applications
Data Efficacy

BTRboard FIRE-X | Up to R-7.43

Tested wall assemblies incorporating BTRboard FIRE-X can achieve a minimum 45-minute fire-resistance rating for applications requiring enhanced fire protection, including zero lot line construction.

BTRboard FIRE-X combines fire protection and easy to install exterior insulation wrap without the need for extra materials or labour.

  • 45 Minute tested wall assemblies evaluated under CAN/ULC S101 and S134
  • Ideal for zero lot line builds or multi-family developments
  • Cladding and fastening requirements remain subject to manufacturer requirements, project specifications, applicable code, and AHJ acceptance
  • Adds up to R-7.43  to wall assemblies
Data Efficacy
BTRboard-Fire-x
1

5/8” Type-X Exterior Gypsum Sheathing

2

1” Medium Density Thermoset Foam Core

3

Fibreglass Facer

  1. 5/8″ Type-X Exterior Gypsum Sheathing
  2. 1” Medium Density Thermoset Foam Core
  3. Fibreglass Facer
1

7/16" Fire Resistant OSB

2

1 3/16" Medium Density Thermoset Foam Core

3

Fibreglass Facer

  1. 7/16” Fire Resistant OSB
  2. 1- 3/16” Medium Density Thermoset Foam Core
  3. FIBREGLASS FACER

BTRboard OSB RESIST | Up to R-8.75

Ideal for construction-phase fire protection, BTRboard RESIST uses fire-resistant OSB with intumescent technology for added protection during the construction phase.

  • Fire-resistant OSB supports improved construction-phase fire performance.
  • Code compliant exterior wall insulation adds up to R-8.75 to wall assemblies.
  • Easy installation over standard assemblies without extra labour or materials strapping to make it comparable with vinyl siding.
  • 2×4 wall assemblies utilizing BTRboard RESIST can perform up to 10% better than standard 2×6 walls
Data Efficacy

BTR Board Benefits

BTRsavings

• Lower Energy Costs
• Reduce Materials & Labour
• Prevent Future Repairs

BTRcomfort

• Increase Warmth
• Prevent Drafts
• Reduce Noise

Environment

• No Microplastics
• Lower Energy Consumption
• Low Carbon Footprint

BTRbuilt

• Added Structural Rigidity
• Code Compliant With 2x4s
• Increase R-value

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Installation Guides

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CASE STUDIES

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BTRboard Is Used By These Industry Leading Builders: