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Chemco, Inc.

Building Products Listing Program

Customer:

Chemco, Inc.
Class:

Fire Retardant Treated Wood Products
Location:

Ferndale, WA
Website:

https://www.saferwood.com
Listing No.:

B1152
Project No.:

B1152-1
Effective Date:

November 7, 2024
Last Revised Date:

November 7, 2024
Expires:

N/A

Standards:

CAN/ULC S102-18	“Standard Method of Test for Surface Burning Characteristics of Building Materials and Assemblies.
ASTM E84-22	“Standard Test Method for Surface Burning Characteristics of Building Materials”, extended an additional 20 minutes (ASTM E84 30-Minute Duration).
ASTM E2768-11(R2018)	“Standard Test Method for Extended Duration Surface Burning Characteristics of Building Materials (30 min Tunnel Test)”.
ASTM D2898-10(R2017)	Standard Practice for Accelerated Weathering of Fire-Retardant-Treated Wood for Fire Testing.
ASTM D3201/D3201M-20	“Standard Test Method for Hygroscopic Properties of Fire-Retardant Wood and Wood-Base Products”.

Product:

FRX, Saferwood-FX, Thermex-FX, Mataverde, Flame Repel Fire Retardant Treated Lumber
FRX, Saferwood-FX, Thermex-FX, Mataverde, Flame Repel Fire Retardant Treated Plywood
Markings:

Species:
Lumber Grades: Southern Yellow Pine (SYP), Douglas-fir (DF), Spruce-Pine-Fir (SPF), Western Red Cedar (WRC), Redwood (RW), Hemlock-Fir (HF)
Engineered Wood Structural Panels: Southern Yellow Pine (SYP), Douglas-fir (DF), Western Red Cedar (WRC), White Spruce (WS), Western Hemlock-Fir.

Label(s):
Example labels found in QAI certified FRX, Saferwood-FX, Thermex-FX, Mataverde, Flame Repel Fire Retardant Treated Wood products are outlined below:

Ratings:

The following outlines FRX, Saferwood-FX, Thermex-FX, Mataverde, Flame Repel Fire Retardant Treated Wood product ratings:

Table 1. FRX, Saferwood-FX, Thermex-FX, Mataverde, Flame Repel Fire Retardant Treated Lumber Surface Burning Characteristics per CAN/ULC S102.

SPECIES GRADE

Flame Spread Index

(FSI)¹

Smoke Developed Index

(SDI)

LUMBER: SYP, DF, SPF, WRC, RW, HF

≤ 25²

≤ 100

WOOD STRUCTURAL PANEL: SYP, SPF, DF, WRC, WS, HF

≤ 25²

≤ 100

Note 1: Flame spread index is determined after weathering in accordance with ASTM D2898 per the 2020 National Building Code of Canada Section 3.1.4.8 clause 3) for exterior grade products.

Note 2: Flame spread index complies with Section 3.1.4.5 of the 2020 National Building Code of Canada Section 3.1.4.5 clause b) flame spread rating requirements.

Table 2. FRX, Saferwood-FX, Thermex-FX, Mataverde, Flame Repel Fire Retardant Treated Lumber Surface Burning Characteristics per ASTM E84 (Extended) / ASTM E2768¹

PRODUCT

SPECIES

Flame Spread Index

(FSI)

Smoke Developed Index

(SDI)

Flame Front²

LUMBER:

SYP, DF, SPF, WRC, RW, HF

< 25

< 450

< 10.5 feet.

WOOD STRUCTURAL PANEL³:

SYP, DF, WS, WRC, HF

< 25

< 450

< 10.5 feet.

Note 1: Flame spread index is determined after weathering in accordance with ASTM D2898 for exterior grade products.

Note 2: No evidence of significant progressive combustion after extended 20 minutes duration.

Note 3: Testing of wood panels was conducted without ripping or longitudinal cut of 1/8’’ (0.375 inches) included.

FRX, Saferwood-FX, Thermex-FX, Mataverde, Flame Repel Fire Retardant Treated Lumber products strength adjustment factors are outlined in QAI Code Evaluation Report CER_US-1031. Strength adjustments outlined in the noted CER_US-1031 should be used in conjunction with the approved wood design methodology where fire-retardant treated wood products are used in load-bearing applications (National Design Specification USA / CSA 086 Canada).

FRX, Saferwood-FX, Thermex-FX, Mataverde, Flame Repel Fire Retardant Treated Wood Structural Panel products strength adjustment factors are outlined in QAI Code Evaluation Report CER_US-1042. Strength adjustments outlined in the noted CER_US-1042 should be used in conjunction with the approved wood design methodology where fire-retardant treated wood products are used in load-bearing applications (National Design Specification USA / CSA 086 Canada).

FRX, Saferwood-FX, Thermex-FX, Mataverde, Flame Repel products have less than 28% moisture content when tested in accordance with ASTM D3201 at a 92 percent-relative humidity.

QAI maintains ISO/IEC 17065 accreditations via the International Accreditation Service (IAS) for the United States and Canada. Typically, certifications under this accreditation do not require the Seal of a Professional Engineer in order to be accepted by the authority having jurisdiction. Should a Professional Engineer Seal be needed, please select from the highlighted States / Provinces that are available for this specific manufacturer’s file. If a specific State / Province is not available, you may email info@qai.org to request if a sealed document is available for that jurisdiction.

The materials, products or systems listed in this directory have been qualified to bear the QAI Listing Mark under the conditions stated with each Listing. Only those products bearing the QAI Listing Mark are considered to be listed by QAI.

The standard herein listed is the currently accepted version within the relevant certification scheme, code or other requirements unless otherwise noted. Transition periods may apply. Upon request, QAI will provide information about the validity of any of its certifications.

No warrantee is expressed or implied, and no guarantee is provided that any jurisdictional authority will accept the Listing found herein. The appropriate authorities should be contacted regarding the acceptability of any given Listing.

Visit the QAI Online Listing Directory located at www.qai.org for the most up to date version of this Listing and to validate that this QAI Listing is active. Questions regarding this listing may be directed to info@qai.org. Please include the listing number in the request.