AWS EDITION 1, 2009

311

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

PRODUCT

MATERIAL, MACHINING, AND ASSEMBLY RULES (continued)

DESCRIPTION E C P



4.4

A S S E M B L Y 

ASSEMBLY (continued)

4.4.16

S O L I D S U R F A C E

At SOLID SURFACE:

4.4.16.1 Requires FLUSHNESS VARIATIONS at exposed surfaces when mitered or butted (see Test D illustrations in COMPLIANCE) to be flush.

MM

4.4.16.2 Requires illustrations in GAPSCOMPLIANCE at exposed surfaces when mitered or butted (see Test A, B, and C ) to be gap-free. MM

4.4.16.3 Requires FLATNESS of installed and removable sheet products not to exceed: 4.4.16.3.1 0.036" (0.9 mm) per 12" (305 mm) or portion thereof. M 4.4.16.3.2 0.027" (0.7 mm) per 12" (305 mm) or portion thereof. M 4.4.16.4 EXPOSED FINISH shall be the manufacturer’s standard matte finish. 4.4.16.5 SEAM JOINTS shall be joined with a compatible color-matched adhesive and/or sealant. 4.4.16.6 EXPANSION clearances of at least 1/8” (3.2 mm) shall be provided.

4.4.16.7 SEALANTSachieve the best performance and color match. and/or ADHESIVES, as recommended by individual manufacturers, shall be used to

4.4.16.8

The MAXIMUM distance a countertop (with or without a sub-top) may CANTILEVER from a support is 12” (305 mm) for 3/4” (19 mm) thick or 6” (152 mm) for 1/2” (12.7 mm) thick material, whether in the front, back, or end. 4.4.17

S O L I D P H E N O L I C

At SOLID PHENOLIC:

4.4.17.1 Requires FLUSHNESS VARIATIONS at exposed surfaces when mitered or butted (see Test D illustrations in COMPLIANCE) not to exceed 0.001” (0.03 mm).

M

4.4.17.2

Requires GAPS at exposed surfaces when mitered or butted (see Test A illustrations in COMPLIANCE)) not to exceed 0.015” (0.4 mm) wide by 20% of the joint length. M

4.4.17.3

Requires GAPS at exposed surfaces at parallel members (see Test B illustrations in COMPLIANCE) not to exceed 0.015” x 3” (0.4 mm x 76 mm) and shall not occur within 12” (1829 mm) of a similar gap.

M

4.4.17.4

Requires GAPS at exposed surfaces when mitered or butted (see Test C illustrations in COMPLIANCE) not to exceed 0.015” (0.4 mm).

M

4.4.17.5 FLATNESS(3048 mm) span. (see Test E illustrations in COMPLIANCE) shall be held within ±1/32” (0.8 mm) per 120”

4.4.17.6

EDGE FINISH shall be the standard black core with a machined satin sheen; polished edges shall be so specified.

4.4.17.7 LIPPED TOPS raised area shall be determined by the manufacturer.shall be raised a minimum of 1/4” (6.4 mm) above the work surface; the width of the

4.4.17.8 BACK SPLASHES shall be separate, flat-butted.

4.4.17.9

The MAXIMUM distance a countertop (with or without a sub-top) may CANTILEVER from a support is 12” (305 mm) for 3/4” (19 mm) thick or 6” (152 mm) for 1/2” (12.7 mm) thick material, whether in the front, back, or end. 4.4.18

E P O X Y R E S I N

At EPOXY RESIN:

4.4.18.1 Requires FLUSHNESS VARIATIONS at exposed surfaces when mitered or butted (see Test D illustrations in COMPLIANCE) not to exceed 0.050” (0.8 mm).

M

4.4.18.2

Require GAPS at exposed surfaces when mitered or butted shall be per the manufacturer’s recommendation and shall be neatly filled with recommended filler material (see Test A, B, and C illustrations in COMPLIANCE) and be gap-free.

M

4.4.18.3 FLATNESS36” (914 mm) span. (see Test E illustrations in COMPLIANCE) shall be held within ±1/16” (1.6 mm) for each

4.4.18.4 BACK SPLASHES shall be separate, flat-butted.

4.4.18.5

The MAXIMUM distance a countertop (with or without a sub-top) may CANTILEVER from a support is 12” (305 mm) for 1” (25.4 mm) thick or 6” (152 mm) for 3/4” (19 mm) thick material, whether in the front, back, or end.

Section 11 - Countertops (Page 16 of 25)

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