AWS EDITION 1, 2009

319

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© 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/

EXECUTION

DESCRIPTION E C P

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6.2

PRODUCT SPECIFIC (continued)

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6.2.5

At EPOXY RESIN, NATURAL/MANUFACTURED STONE: (continued)

6.2.5.4 HARD SEAMS shall be water-tight and gap-free.

6.2.5.5 SCRIBING is not required.

6.2.5.6 SINKS shall be either lipped or under-mounted, and:

6.2.5.6.1 LIPPED shall be set in a rabbeted cutout in the top.

6.2.5.6.2 UNDER-MOUNT shall be installed using adjustable metal sink supports, and:

6.2.5.6.2.1 An epoxy cement is required at the juncture of the sink and countertop to produce a leak-proof joint.

6.2.5.6.2.2 The maximum gap between the top edge of the sink and underside of

the countertop shall not exceed 3/16” (4.8 mm).

COMPLIANCE

7 FABRICATED and INSTALLED woodwork shall be tested for compliance to these

standards as follows:

7.1 SMOOTHNESS of exposed surfaces

7.1.1 KCPI (Knife Cuts Per Inch) is determined by holding the surfaced board at an angle to a strong light source

and counting the visible ridges per inch, usually perpendicular to the profile.

Knife Cuts

7.1.2 SANDING is checked for compliance by sanding a sample piece of the same species with the required grit of

abrasive.

7.1.2.1 Observation with a hand lens of the prepared sample and the material in question will offer a

comparison of the scratch marks of the abrasive grit.

7.1.2.2 Reasonable assessment of the performance of the finished product will be weighed against absolute

compliance with the standard.

7.1.2.3 A product is sanded sufficiently smooth when knife cuts are removed and any remaining sanding

marks are or will be concealed by applied finishing coats.

7.1.2.4 Handling marks and/or grain raising due to moisture or humidity in excess of the ranges set forth in

this standard shall not be considered a defect.

7.2 GAPS, FLUSHNESS, FLATNESS, AND ALIGNMENT of product and installation:

7.2.1 Maximum gaps between exposed components shall be tested with a feeler gauge at points designed to join

where members contact or touch.

7.2.2 Joint length shall be measured with a ruler with minimum 1/16” (1 mm) divisions and calculations made

accordingly.

Section 11 - Countertops (Page 24 of 25)

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