Plycem USA LLC
Building Products Listing Program
- Plycem USA LLC
- Soffit
- Houston, TX
- B1034-3
- B1034-3, Edition 1
- October 2, 2026
- October 2, 2026
- N/A
-
ASTM C1186-08 Standard Specification for Flat Fiber-Cement Sheets. ASTM E84-21a Standard Test Method for Surface Burning Characteristics ASTM E136-16a Standard Test Method for Assessing Combustibility of Materials Using a Vertical Tube Furnace at 750C TAS 202-94 Criteria For Testing Impact and Non-Impact Resistant Building Envelope Components Using Uniform Static Air Pressure TAS 203-94 Criteria For Testing Products Subject To Cyclic Wind Pressure Loading Building Envelope Components Using Uniform Static Air Pressure -
Allura® Fiber-Cement Soffit
-
Product is marked with a permanent label containing the following information:
a) Manufacturers name or recognized trademark
b) Product name
c) Production date / Traceability code
d) ASTM C1186 Type A Grade II
e) ASTM E136 – Classified Non-Combustible
f) ASTM E84 – Class A
g) QAI file number: B1034
h) Traceability Code
I) QAI logo with ‘us’ identifier
-
The ratings listed below reflect the performance of this product’s configurations as determined through testing.
Allura® Fiber-Cement Soffit complies with Type A Grade II requirements per ASTM C1186.
Allura® Soffit designations in dimensions as outlined in Table 1 shown below.
Table 1: Allura Fiber-Cement Soffit Product Dimensions
Product Type
Model
Width
Length
Thickness
Inches
mm
Inches
Mm
Inches
mm
Allura® Soffit
Traditional Cedar1
12, 16, 24
305, 406, 610
144
3658
¼
6
Smooth1
12, 16, 24
305, 406, 610
144
3658
¼
6
Porch Panel
48
1219
96
2438
¼
⁵⁄₁₆
6
8
1. Noted products are available in vented and non-vented options.
Allura® and TerraPlank™ Type A Grade II fiber-cement products have the following surface burning characteristics determined in accordance with ASTM E84.
Table 2: Allura® Fiber-Cement Products Surface Burnace Characteristics Per ASTM E84
Products
Thickness
Flame Spread Index
Smoke Developed Index
Class
inches
mm
Type A Grade II Fiber-Cement
¼
⁵⁄₁₆
6
8
≤ 0
≤ 5
A
Allura® Fiber-Cement Soffit is classified as non-combustible per ASTM E136.
Allura® Fiber-Cement Soffit has the following design pressure as determined by testing to TAS 202-203.Table 3: Allura® Soffit Design Pressures1.
Fastening Method
Product Width (in.)
Fastener Type2
Attachment
Roof Details
Framing Spacing (in.)
Design Pressure, psf 3
Face
≤ 24
6d (2in.) galvanized common nails
4 in. (102 mm) around perimeter and along intermediate framing members
Direct attachment to 2 in. × 6 in. wood studs.
16
70
- See manufacturer’s installation instructions for installation and assembly details
- Fasteners used must be corrosion resistant.
- The allowable design pressure is derived from the tested ultimate pressure by applying a safety factor of 1.5 in accordance with TAS 202 and TAS 203.
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.
USA 
Canada 
Europe 
China 
S Korea