2.5
MARBLE THRESHOLDS
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NOTE: Where the top of tile floors will occur at a
different elevation from the top of finished floors
in adjoining spaces, provision for marble thresholds
or saddles will be edited appropriately.
**************************************************************************
Marble thresholds shall be of size required by drawings or conditions.
Marble shall be Group A as classified by MIA Design Manual. Marble shall
have a fine sand-rubbed finish and shall be [white] [pink] [or] [gray] in
color as approved by the Contracting Officer. Marble abrasion shall be not
less than 12.0 when tested in accordance with ASTM C 241.
PART 3
EXECUTION
3.1
PREPARATORY WORK AND WORKMANSHIP
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NOTE: When using the dry-set method to install tile
on concrete or masonry surfaces, Section 03300
CAST-IN-PLACE STRUCTURAL CONCRETE and Section 04200
MASONRY, as applicable, will be coordinated to
require (1) steel trowel and fine broom-finished
concrete floors free of curing compounds and waxes,
(2) masonry surfaces that are level and plumb with
struck joints and square openings.
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Surface to receive tile shall be inspected and shall conform to the
requirements of ANSI A108.1 for surface conditions for the type setting bed
specified and for workmanship. Variations of surface to be tiled shall
fall within maximum values shown below:
TYPE
WALLS
FLOORS
Dry-Set Mortar
3
mm
in
2.4
meters
3.0
mm
in
3
meters
Organic Adhesives
3
mm
in
2.4
meters
1.5
mm
in
1
meters
Latex portland cement mortar
3
mm
in
2.4
meters
3.0
mm
in
3
meters
Epoxy
3
mm
in
2.4
meters
3.0
mm
in
3
meters
TYPE
WALLS
FLOORS
Dry-Set Mortar
1/8
inch
in
8
ft.
1/8
inch
in
10 ft.
Organic Adhesives
1/8
inch
in
8
ft.
1/16
inch
in
3 ft.
Latex portland cement mortar
1/8
inch
in
8
ft.
1/8
inch
in
10 ft.
Epoxy
1/8
inch
in
8
ft.
1/8
inch
in
10 ft.
3.2
GENERAL INSTALLATION REQUIREMENTS
Tile work shall not be started until roughing in for mechanical and
electrical work has been completed and tested, and built-in items requiring
membrane waterproofing have been installed and tested. Floor tile
installation shall not be started in spaces requiring wall tile until after
wall tile has been installed. Tile in colors and patterns indicated shall
be applied in the area shown on the drawings. Tile shall be installed with
the respective surfaces in true even planes to the elevations and grades
shown. Special shapes shall be provided as required for sills, jambs,
SECTION 09310
Page 12
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