expensive closed grain effect is not required.
Closed grain effect provides a near furniture-like
finish and adds considerably to the cost of a door
while it may not necessarily add to the durability.
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Provide doors finished at the factory by the door manufacturer as follows:
AWI Qual Stds Section 1500, specification for System No. 4 Conversion
varnish alkyd urea or System No. 5 Vinyl catalyzed. The coating shall be
AWI Qual Stds premium, medium rubbed sheen, [open] [closed] grain effect.
Use stain when required to produce the finish specified for color. Seal
edges, cutouts, trim, and wood accessories, and apply two coats of finish
compatible with the door face finish. Touch-up finishes that are scratched
or marred, or where exposed fastener holes are filled, in accordance with
the door manufacturer's instructions. Match color and sheen of factory
finish using materials compatible for field application.
2.3.6.3
Plastic Laminate Finish
Factory applied, NEMA LD 3, General or Specific purpose type, 1.25 mm 0.050
inch minimum thickness. Glue laminated plastic for hollow core doors to
wood veneer, plywood, or hardboard backing to form door panel. Combined
minimum thickness of laminate sheet and backing shall be 2.5 mm 0.10 inch.
2.3.6.4
Color
Provide door finish colors [as indicated] [as selected by the Contracting
Officer from the color selection samples].
2.3.7
Water-Resistant Sealer
Provide a water-resistant sealer compatible with the specified finish[es]
as approved and as recommended by the door manufacturer.
2.4
SOURCE QUALITY CONTROL
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NOTE: Require tests and test reports when fire
rated wood doors are included in the project. Doors
designated to have "C" label have a 3/4 hour rating,
doors designated to have "B" label have a one or
11/2 hour rating.
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Stiles of "B" and "C" label fire doors utilizing standard mortise leaf
hinges shall meet the following performance criteria:
a.
Split resistance: Average of ten test samples shall be not less
than 225 kilograms 500 pounds load when tested in accordance with
WDMA TM-5.
b.
Cycle-slam: 200,000 cycles with no loose hinge screws or other
visible signs of failure when tested in accordance with the
requirements of WDMA TM-7.
c.
Hinge loading resistance: Average of ten test samples shall be
not less than 315 kilograms 700 pounds load when tested for direct
screw withdrawal in accordance with WDMA TM-8 using a No. 12, 30 mm
1 1/4 inch long, steel, fully threaded wood screw. Drill 4 mm
SECTION 08210
Page 13
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