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TimberShield Inc.

Building Products Listing Program

Customer:

TimberShield Inc.
Class:

Fire-Retardant Low-Pressure Treatment. Fire-Retardant Coating
Location:

NA
Listing No.:

B1170-1
Project No.:

B1170-1 Edition 1
Effective Date:

April 21, 2026
Last Revised Date:

April 21, 2026
Expires:

N/A
Standards:

CAN/ULC S102:2019
Standard Method of Test for Surface Burning Characteristics of Building Materials and Assemblies.
Product:

TS-100 Intumescent Paint & Pre-finished Oriented Strand Board (OSB) Sheathing.
TS-200 Low-Pressure Treatment of Graded Dimensional Lumber.
Markings:

Each panel is marked with a permanent label containing the following information:
a) Address, including city and country of manufacture
b) Product Name
c) Date of Manufacture
d) QAI Listing File Number (B1170)
e) Oriented Strand Board/Lumber Species Designation
f) CAN/ULC-S102 Flame Spread and Smoke Developed Values
g) The following QAI logo with ‘C’ identifier:

Models:

TimberShield TS-100 Coated OSB CAN/ULC S102 Classification¹:

Flame Spread Value

(FSV)

Smoke Developed Value

(SDV)

Min. Application

≤ 25

≤ 100

377 g/m²

(35 g/ft²)

Note 1: TS-100 Coated OSB are not evaluated for use after exposure to weathering.

TimberShield TS-200 Low-Pressure Treated Dimensional Lumber CAN/ULC S102 Classification¹:

Flame Spread Index

(FSI)

Smoke Developed Index

(SDI)

Species Allowed

≤ 25

SPF²

Note 1: TS-200 Low-Pressure Treated Dimensional Lumber are not evaluated for use after exposure to weathering.

Note 2: SPF = Spruce-Pine-Fir graded lumber.

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.