Quality Management System (QMS) TAKTL adheres to a strict Quality Management System that conforms to ICC-ES AC10 Quality Requirements and has achieved certification by Architectural Testing Inc (ATI) to consistently produce panels meeting the performance standards of ASTM C1186 Grade IV. TAKTL’s QMS monitors parameters such as product dimensions, physical properties, flexural strength, anchor pull-out strength, color, curing conditions, and provides full traceability for each panel back to raw materials.

Under the independent quality certification program, ATI conducts unannounced audits of TAKTL operations at least four times annually, verifying procedures, reviewing QMS records, and selecting panels at random for laboratory testing and verification. TAKTL employs a full-time Quality Administrator, who monitors procedures, testing, training, and reporting. Please contact our Technical Support department for more details about TAKTL Quality Management.

Strength + Durabilty TAKTL elements are significantly stronger than the leading competitive GFRC panels, making them much less susceptible to breakage during transit or installation. All certified test results for TAKTL Facade and Wall Panels, for instance, exceed by wide margins the minimum qualifying requirements in the highest performance category (Grade IV) for fiber-cement facade panels, as given under ASTM C 1186 Standard Specification for Flat Fiber-Cement Sheets.

Flexural Strength Quality Testing Horizontal and vertical pairs are selected from each lot for testing at a frequency of approximately one test pair for every nine panels produced. Average flexural strength for the pair must exceed 25 Mpa (ASTM C 1186 minimum is 22Mpa). Certified flexural strength for TAKTL panels is 42.5Mpa, exceeding published design values.

Anchor Pullout Strength Quality Testing Every anchor hole is inspected for depth and diameter, using a check fixture supplied by the manufacturer of the anchor and anchor drilling equipment. In addition, anchor pullout testing is conducted on one sample out of every 9-12 panels produced, with results exceeding published design values.

Freeze/Thaw Durability Quality Testing Unlike typical GFRC panels, TAKTL panels are not dependent upon a coating to maintain their full strength performance over time.  Since TAKTL is extremely dense and is virtually without capillary pores, it will not absorb water or exhibit the typical expansion/contraction problems of cementitious panels.  In extended freeze/thaw tests, conducted on uncoated panels in accordance with ASTM C 1186 requirements, TAKTL maintained 98-100% of its strength.  As a reference, the highest performance category (Grade IV) requires only a score greater than 80% to pass.

Dimension and Anchor Location Parts are inspected at seven points in the production process, with final measurements taken immediately prior to packing and crating. Panels with dimensions outside the following tolerances are rejected:

Length/Width ± 1/16” (± 1.6mm)
Thickness**   ± 1/16” (± 1.6mm)
Square-ness ± 1/16” (± 1.6mm)
Edge Straightness ± 1/16” (± 1.6mm)
Anchor Hole Location ± 1/32” (± 0.8mm)

** Thickness measurements are taken at the side midpoints and corners of each panel. Each measurement must be within tolerance for the panel to pass. In contrast, the ASTM C1186 standard requires only that the average of the side midpoints exceeds the minimum.

Edge Conditions, Surface Appearance, and Mesh Placement    Parts are inspected for visual consistency and finish upon de-mold, before cutting, and again prior to packing.

Color Quality TAKTL is a natural, mineral-based product that generally exhibits subtle color variation between panels. We have a series of interrelated strategies for minimizing color variation within and between production lots, including:

  • Tight specification and control of highest quality white cement, pigments, and micro-aggregates
  • Stringent quality management procedures for incoming raw materials, including color monitoring and particle size distribution analyses
  • Precise, automated material dosing and mixing sequences to achieve exact mix design and homogeneity
  • Climate and humidity controlled curing chambers

Darker standard colors (Natural, Flax, Terracotta, Weathered Brown, Root, Graphite, and Grey) and certain textures have greater potential for color variance.

Weather Testing TAKTL gains most of its strength during the first month after it is cast, but it will continue to cure for several years. This curing reaction is hydration in the material – water molecules creating bonds with cement – and the panel will therefore interact with water in the environment and lighten slightly over time. Weathering is currently measured according to ASTM G155 with ΔE < 2 at 500 hours. (ΔE < 1.7 at 2000 hours for panels finished with ColorSeal/T)  TAKTL utilizes two in-house Xenon-arc weathering chambers for testing custom colors. Laboratory certified testing of custom colors may be arranged for an additional charge.

In addition to accelerated weather testing, TAKTL conducts extensive outdoor weathering tests under non-controlled atmospheric conditions – sun, precipitation, chlorides, and pollution – at its Pittsburgh, PA location and under the oversight of QLab at its south Florida and Arizona desert test facilities.

Note: In order to accommodate projects in which the natural qualities of TAKTL’s color variation and weathering are not desired, a standard, factory-applied option, ColorSeal/T™, is available. This method produces an even color within and between panels and exhibits minimal weathering over extended periods. Please note that the ColorSeal/T process eliminates the subtle batch-to-batch color variation that results from raw materials that are natural minerals.

Final Factory Inspection Immediately prior to crating, a final inspection is conducted to ensure dimensions, edges, face, and backs are within dimensional and color tolerance and visual acceptance range. Also prior to shipping, batch strength testing, anchor pullout testing, and anchor hole inspection records are collected and verified. A manifest accompanies each crate, listing its contents with cross reference to the project panel list and panel layout designations.