AWS EDITION 1, 2009

306

© 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/

PRODUCT

MATERIAL, MACHINING, AND ASSEMBLY RULES (continued)

DESCRIPTION E C P



4.3

M A C H I N I N G 

MACHINING (continued)



4.3.5

W

O

O

D

At WOOD (continued)



4.3.5.3

SMOOTHNESS REQUIREMENTS (continued)

4.3.5.3.2 MOLDED and SHAPED WOOD surfaces:

4.3.5.3.2.1 Minimum of 15 KCPI or 100-grit sanding M

4.3.5.3.2.2 Minimum of 20 KCPI M

4.3.5.3.2.3 120-grit sanding M

4.3.5.3.3 CROSS-SANDING:

4.3.5.3.3.1 Is not a defect. M

4.3.5.3.3.2 Is not allowed. MM

4.3.6

H

P

D

L

At HPDL:

4.3.6.1 CUTOUTS shall have a minimum of 1/4” (6.4 mm) radius at all inside corners, except at wood or

epoxy resin, and:

4.3.6.1.1 EDGESverification), water-resistant sealer before trim or sink rims are installed. subject to EXCESSIVE MOISTURE shall be sealed with a color-toned (for

4.3.6.2 COVES at splashes of:

4.3.6.2.1 1/4” (6.4 mm) radius permits a square cove stick the same thickness as the core material with all voids filled with glue between the HPDL and the cove stick.

4.3.6.2.2

3/4” (19 mm) radius requires a molded cove stick glued and mechanically fastened a

maximum of 12” (305 mm) on center, with no voids permitted between the HPDL or

core and the cove stick.

4.3.6.3 DRIP GROOVE, when specified, shall be CONTINUOUS and 1/8” x 1/8” (3.2 mm x 3.2 mm)

approximately 3/8” (9.5 mm) from the front edge and sealed with a color-toned (for verification),

water-resistant sealer:

4.3.6.3.1 GROOVE EDGES shall be smoothly sanded.

4.3.6.4 MITER-FOLD self edge is acceptable.

4.3.7

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

At SOLID SURFACE:

4.3.7.1 Shall conform to the manufacturer’s recommendations.

4.3.7.2 MANUFACTURED JOINTS shall be precision-machined and glued with the manufacturer’s hard

seaming material or equal:

4.3.7.2.1 SILICONE is NOT permitted at joints, except:

4.3.7.2.1.1 Where hot areas meet cold areas.

4.3.7.3 EDGE detail requires a:

4.3.7.3.1 Single drop or build-up with mill-option prothick. file, a minimum of 1” (25.4 mm) M

4.3.7.3.2 Build-up with mill-option profile, a minimum of 1-1/2” (38.1 mm) thick. M

4.3.7.4 COVED splash is only required when so specified, with:

4.3.7.4.1 ENDS sent loose without cove.

4.3.8 At SOLID PHENOLIC:

4.3.8.1 JOINTS shall be precision-machined with tight joint fasteners and sealed with a bioside silicon prior

to tightening (producing an almost invisible joint).

4.3.8.2 FRONT EDGES shall be built up to a minimum of 1” (25.4 mm) in thickness.

4.3.9 At EPOXY RESIN:

4.3.9.1 EXPOSED EDGES shall be smoothly machined and finished to be compatible with the top face.

4.3.9.2 LIPPED TOPS shall be raised a minimum of 3/16” (4.8 mm) above the work surface, and:

4.3.9.2.1 Drip groove is not required.

Section 11 - Countertops (Page 11 of 25)

11