Edition-scoped certification directory
This page confirms inclusion in the July 2026 directory. BHGS warns that certifications or decertifications may occur after publication; Approval Index does not infer a later live status.
California BHGS · Thermal Insulation Directory
VERSABOARD 40
Thermafiber Inc. · T 1437
The official July 2026 California BHGS directory includes this product ID under Board. The source contains 37 separate configuration rows; values are not collapsed into one maximum.
- Manufacturer
- Thermafiber Inc.
- BHGS license
- T 1437
- Brand code
- TCW
- Directory category
- Board
- Material
- ROCKWOOL
- Source state
- Included in July 2026 directoryLater status not asserted
Source-native rows
Certified directory configurations
| Source row | Type / facing | Primary use | Physical values | Thermal values | Exposed / vapor retarder |
|---|---|---|---|---|---|
| Board row 789449 | FACED SINGLE MATLMETAL | WALL | Thickness: 2 inDensity not stated | Thermal performance: 8.33Source value kind: R | YESYES |
| Board row 790449 | FACED SINGLE MATLMETAL | WALL | Thickness: 2.5 inDensity not stated | Thermal performance: 10.42Source value kind: R | YESYES |
| Board row 791449 | FACED SINGLE MATLMETAL | WALL | Thickness: 3 inDensity not stated | Thermal performance: 12.5Source value kind: R | YESYES |
| Board row 792449 | FACED SINGLE MATLMETAL | WALL | Thickness: 3.5 inDensity not stated | Thermal performance: 14.58Source value kind: R | YESYES |
| Board row 793449 | FACED SINGLE MATLMETAL | WALL | Thickness: 4 inDensity not stated | Thermal performance: 16.670000000000002Source value kind: R | YESYES |
| Board row 794449 | FACED SINGLE MATLMETAL | WALL | Thickness: 4.5 inDensity not stated | Thermal performance: 18.75Source value kind: R | YESYES |
| Board row 795449 | FACED SINGLE MATLMETAL | WALL | Thickness: 5 inDensity not stated | Thermal performance: 20.85Source value kind: R | YESYES |
| Board row 796449 | FACED SINGLE MATLMETAL | WALL | Thickness: 5.5 inDensity not stated | Thermal performance: 22.934999999999999Source value kind: R | YESYES |
| Board row 797449 | FACED SINGLE MATLMETAL | WALL | Thickness: 6 inDensity not stated | Thermal performance: 25.02Source value kind: R | YESYES |
| Board row 798449 | FACED SINGLE MATLMETAL | WALL | Thickness: 6.5 inDensity not stated | Thermal performance: 27.105Source value kind: R | YESYES |
| Board row 799449 | FACED SINGLE MATLMETAL | WALL | Thickness: 7 inDensity not stated | Thermal performance: 29.189999999999998Source value kind: R | YESYES |
| Board row 800449 | FACED SINGLE MATLMETAL | WALL | Thickness: 7.5 inDensity not stated | Thermal performance: 31.274999999999999Source value kind: R | YESYES |
| Board row 801449 | FACED SINGLE MATLMETAL | WALL | Thickness: 8 inDensity not stated | Thermal performance: 33.36Source value kind: R | YESYES |
| Board row 802449 | FACED SINGLE MATLFIBERGLASS | WALL | Thickness: 3 inDensity not stated | Thermal performance: 12.51Source value kind: R | YESNO |
| Board row 803449 | FACED SINGLE MATLFIBERGLASS | WALL | Thickness: 3.5 inDensity not stated | Thermal performance: 14.594999999999999Source value kind: R | YESNO |
| Board row 804449 | FACED SINGLE MATLFIBERGLASS | WALL | Thickness: 4 inDensity not stated | Thermal performance: 16.68Source value kind: R | YESNO |
| Board row 805449 | FACED SINGLE MATLFIBERGLASS | WALL | Thickness: 4.5 inDensity not stated | Thermal performance: 18.765000000000001Source value kind: R | YESNO |
| Board row 806449 | FACED SINGLE MATLFIBERGLASS | WALL | Thickness: 5 inDensity not stated | Thermal performance: 20.85Source value kind: R | YESNO |
| Board row 807449 | FACED SINGLE MATLFIBERGLASS | WALL | Thickness: 5.5 inDensity not stated | Thermal performance: 22.934999999999999Source value kind: R | YESNO |
| Board row 808449 | FACED SINGLE MATLFIBERGLASS | WALL | Thickness: 6 inDensity not stated | Thermal performance: 25.02Source value kind: R | YESNO |
| Board row 809449 | FACED SINGLE MATLFIBERGLASS | WALL | Thickness: 6.5 inDensity not stated | Thermal performance: 27.105Source value kind: R | YESNO |
| Board row 810449 | FACED SINGLE MATLFIBERGLASS | WALL | Thickness: 7 inDensity not stated | Thermal performance: 29.189999999999998Source value kind: R | YESNO |
| Board row 811449 | FACED SINGLE MATLFIBERGLASS | WALL | Thickness: 7.5 inDensity not stated | Thermal performance: 31.274999999999999Source value kind: R | YESNO |
| Board row 812449 | FACED SINGLE MATLFIBERGLASS | WALL | Thickness: 8 inDensity not stated | Thermal performance: 33.36Source value kind: R | YESNO |
| Board row 813449 | SINGLE MATERIALNONE | WALL | Thickness: 2 inDensity not stated | Thermal performance: 8.34Source value kind: R | YESNO |
| Board row 814449 | SINGLE MATERIALNONE | WALL | Thickness: 2.5 inDensity not stated | Thermal performance: 10.425000000000001Source value kind: R | YESNO |
| Board row 815449 | SINGLE MATERIALNONE | WALL | Thickness: 3 inDensity not stated | Thermal performance: 12.51Source value kind: R | YESNO |
| Board row 816449 | SINGLE MATERIALNONE | WALL | Thickness: 3.5 inDensity not stated | Thermal performance: 14.594999999999999Source value kind: R | YESNO |
| Board row 817449 | SINGLE MATERIALNONE | WALL | Thickness: 4 inDensity not stated | Thermal performance: 16.68Source value kind: R | YESNO |
| Board row 818449 | SINGLE MATERIALNONE | WALL | Thickness: 4.5 inDensity not stated | Thermal performance: 18.765000000000001Source value kind: R | YESNO |
| Board row 819449 | SINGLE MATERIALNONE | WALL | Thickness: 5 inDensity not stated | Thermal performance: 20.85Source value kind: R | YESNO |
| Board row 820449 | SINGLE MATERIALNONE | WALL | Thickness: 5.5 inDensity not stated | Thermal performance: 22.934999999999999Source value kind: R | YESNO |
| Board row 821449 | SINGLE MATERIALNONE | WALL | Thickness: 6 inDensity not stated | Thermal performance: 25.02Source value kind: R | YESNO |
| Board row 822449 | SINGLE MATERIALNONE | WALL | Thickness: 6.5 inDensity not stated | Thermal performance: 27.105Source value kind: R | YESNO |
| Board row 823449 | SINGLE MATERIALNONE | WALL | Thickness: 7 inDensity not stated | Thermal performance: 29.189999999999998Source value kind: R | YESNO |
| Board row 824449 | SINGLE MATERIALNONE | WALL | Thickness: 7.5 inDensity not stated | Thermal performance: 31.274999999999999Source value kind: R | YESNO |
| Board row 825449 | SINGLE MATERIALNONE | WALL | Thickness: 8 inDensity not stated | Thermal performance: 33.36Source value kind: R | YESNO |
“Not stated” means the source cell is blank or the field is not part of that directory category. It does not mean “no,” “not applicable,” or “not certified.”
Sources & verification
Official BHGS directory edition
- Publisher
- California Department of Consumer Affairs, Bureau of Household Goods and Services
- Edition
- July 2026
- Last checked
- Aug 31, 2026, 10:07 PM UTC
- Source locator
- 37 rows in the Board worksheet
- Workbook hash
af4e467ab20bfd0eed0a3cf7781dee1640bb36486f0a3a5fa06368bd1426cfa8- Storage policy
- Link only; no workbook copy is served
Independent research context
Approval Index is independent and is not affiliated with or endorsed by BHGS, the Department of Consumer Affairs, the State of California, or a local authority having jurisdiction. Directory inclusion does not determine project suitability, installation compliance, energy-code compliance or permit acceptance. Verify current certification, complete manufacturer documentation, adopted requirements and project conditions with the official authority and qualified professionals.
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