AWS EDITION 1, 2009

119

© 2009, AWI, AWMAC, WI - Architectural Woodwork Standards - 1st Edition, October 1, 2009

As may be updated by errata at http://www.awinet.org, http://www.awmac.com, or http://www.woodworkinstitute.com/awserrata/

Section 5 - Finishing (Page 18 of 19)

COMPLIANCE

7 GENERAL

7.1 VISUAL TESTING is only applicable to exposed surfaces:

7.1.1 View finished surfaces in the ambient conditions in which they will be installed and used.

7.1.1.1 Perception of color varies with the light source and between individuals.

7.1.2 TESTS apply only to new work at the time of installation.

7.1.2.1 They shall not be applied to refinishing conditions, except as agreed in advance between buyer and

seller.

7.2 TESTING for CONSISTENCY of GRAIN and COLOR:

7.2.1 Compliance with standards for color and grain are highly subjective.

7.2.1.1 Each person’s perception of color is unique.

7.2.1.2 The apparent color of a finished wood species is affected by many variables, such as:

7.2.1.2.1 Ambient lighting

7.2.1.2.2 Cellular structure of the individual piece of wood

7.2.1.2.3 Cutting or slicing of the wood

7.2.1.2.4 Machining and sanding of the surface

7.2.1.2.5 Orientation of the surface to the viewer

7.2.2 Compliance shall be evaluated (by comparison to an approved panel, minimum 8" x 12" [200 x 250 mm], that

has been signed and dated and protected from light) based on the following conditions:

7.2.2.1 Viewing of the surfaces in the lighting and orientation in which they will be installed.

7.2.2.2 Observing a color and tone blending that is not significantly lighter than the lightest of the range, nor

darker than the darkest of the range.

7.2.2.3 Because of natural variations in color and grain, it cannot be expected that all panels will match one

particular sample exactly; however, shall match within the sample range submitted.

7.3 SHEEN TEST

7.3.1 Listed in point ranges, which might vary by coating supplier and/or by species of wood and the way it takes the

topcoat; typically, a spread of 20 points is difficult to observe on installed woodwork.

7.3.2 The following sheen ranges were developed with a 60-degree gloss meter:

7.3.2.1 FLAT = 15 to 30

7.3.2.2 SATIN = 31 to 45

7.3.2.3 SEMIGLOSS = 46 to 60

7.3.2.4 GLOSS = 61 or greater

7.3.3 Compliance shall be evaluated (by comparison to a sample panel, minimum 8" x 12" [200 x 250 mm], that has

been signed and dated and protected from light) based on the following conditions:

7.3.3.1 Testing of the surfaces with a gloss meter, parallel to the grain, in identical lighting conditions:

7.3.3.1.1 When contract documents call for sheen using the terms Flat, Satin, Semigloss, or Gloss,

sheen results falling within the ranges listed above shall be considered in compliance.

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