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SECTION 04 40 00
STONE MATERIALS
 
 
Copyright 2007 - 2017 ARCAT, Inc. - All rights reserved
** NOTE TO SPECIFIER ** Carderock(R) Quarries; stone veneer.
This section is based on the products of Carderock(R) Quarries, trading as Tri-State Stone & Building Supply, Inc., which is located at:
P. O. Box 34300
Bethesda, MD 20827
Quarry and Yard are located at:
8200 Seven Locks Rd.
Bethesda, MD 20817
Phone: 301-365-2100
Fax: 301-365-5524
Email: wprunka@carderock.com
Web: http://www.carderock.com
http://www.arcat.com/arcatcos/cos41/arc41507.html
[ Click Here ] for additional information.
Carderock(R) Quarries, trading as Tri-State Stone & Building Supply, Inc. and Ben Porto & Son, Ltd., has been family owned and operated since its inception in 1926. The stone is a mica-schist quartzite. The vibrant blues, browns, greys, and greens create an aesthetically pleasing mixture of colors for various types of stone projects. The quartzite gives the stone durability while the mica-schist establishes its unique horizontal and vertical cleavage, making the stone easy to work. The colors, durability, and ease of use have made Carderock(R) Stone a favorite of stone masons, architects, designers, and homeowners for generations.
Carderock(R) Veneer Stone - for use in walls with setting beds of 4" to 6", such as house fronts, fireplaces, chimneys, or any job requiring stone facing. The stone is somewhat irregular in shape, many with reasonably square edges for corners, 6" to 12" in height, and lengths up to 60". Coverage of 30 to 35 square feet per ton can be expected for rubble style applications. Also available in a premium snapped grade. This grade has been run through a guillotine to reduce the amount of field trimming and shaping required. Coverage is 40 to 45 square feet per ton for the premium snapped.
Carderock(r) Sawn Ashlar Veneer Stone - for use in walls with setting beds of 4" to 6", such as house fronts, fireplaces, chimneys, or any job requiring stone facing. The stone is sawn to stock heights of 3-1/2", 7-1/2" and 11-1/2", in varying lengths up to 48", with sawn ends. The stone can be sawn to custom heights as job conditions demand. Coverage is 35 to 40 square feet per ton. Please note that the bed depth of the 11-1/2" height may run as thick as 8". This product is also available in a thin veneer version but lengths tend to be shorter.
Carderock(R) Garden Wall Stone - irregular in shape and somewhat flat, this grade of stone is ideal for dry or semi-dry stack retaining walls up to 24" in height, such as those defining a raised garden bed. With one reasonably good face, 8" to 12" deep, 3" to 6" in height, up to 18" in length, coverage of 18 to 20 square feet per ton can be expected.
Carderock(R) Drywall Stone - somewhat flat and irregular in shape, many stones will have one good face. Suitable for dry and semi-dry retaining walls, the stone averages 8" to 14" in depth, 4" to 10" in thickness, and up to 24" in length. Approximate coverage is 12 to 15 square feet per ton.
Carderock(R) Flagstone - suitable for use as stepping stones or coping. Broad and relatively flat, from 2" to 4" in thickness and 1.5 to 5 square feet in area. Coverage of 45 to 50 square feet per ton.
Carderock(R) Landscape Boulders - of varying shape and dimension, from 300 pounds to 5000 pounds in weight.
CarderocksTM Tumbled Stone - All the beauty and distinctive color range of Carderock Stone. Tumbled smooth as if it had been in a riverbed for eons. Perfect for use as a ground cover, in water features and dry stream bed applications.
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PART 1 GENERAL
 
1.1
SECTION INCLUDES
 
** NOTE TO SPECIFIER ** Delete items below not required for project.
 
A.
Veneer stone.
B.
Sawn ashlar veneer stone.
C.
Thin veneer stone.
D.
Garden wall stone.
E.
Drywall stone.
F.
Flagstone/slabs.
G.
Landscape boulders.
H.
Carderocks tumbled stone.
1.2
RELATED SECTIONS
 
** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
 
A.
Section 31 10 00 - Site Clearing.
B.
Section 31 20 00 - Earth Moving; Excavation and preparation.
C.
Section 31 22 13 - Rough Grading.
D.
Section 31 23 16 - Trenching.
E.
Section 31 23 23 - Fill.
F.
Section 32 11 36 - Plain Cement Concrete Base Courses.
G.
Section 32 13 16 - Roller-Compacted Concrete Paving.
H.
Section 32 96 43 - Tree Transplanting.
I.
Section 32 91 19 - Topsoil Placement and Grading.
1.3
REFERENCES
 
** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section. Add references as required.
 
A.
ASTM C 97 - Standard Test Methods for Absorption and Bulk Specific Gravity of Dimension Stone.
B.
ASTM C 170 - Standard Test Method for Compressive Strength of Dimension Stone
1.4
SUBMITTALS
A.
Submit under provisions of Section 01 30 00.
B.
[ Product Data ]: Manufacturer's data sheets on each product to be used, including:
1.
Preparation instructions and recommendations.
2.
Storage and handling requirements and recommendations.
3.
Installation methods.
1.5
QUALITY ASSURANCE
A.
Manufacturer Qualifications:
B.
Installer Qualifications: Firm with documented experience of at least two projects of similar construction and scope. Include brief description of each project and name and phone number of owner's representative knowledgeable in each listed project. Other verifiable experience may be accepted in lieu of the above at the discretion of the Architect.
 
** NOTE TO SPECIFIER ** Include a mock-up if the project size and/or quality warrant taking such a precaution. The following is one example of how a mock-up on a large project might be specified. When deciding on the extent of the mock-up, consider all the major different types of work on the project.
 
C.
Mock-Up: Install a mock-up using acceptable products and manufacturer approved installation methods.
1.
Maintain mock-up during construction for workmanship comparison.
 
** NOTE TO SPECIFIER ** Delete one of the following two paragraphs.
 
a.
Remove and legally dispose of mock-up when no longer required.
b.
Incorporate mock-up into final construction upon Architect's approval.
2.
Obtain Architect's acceptance of finish color, texture and pattern, and workmanship standard.
D.
Pre-Construction Meeting: Prior to commencement of stone installation, conduct a meeting at the site with the stone materials supplier, the stone installer, and the Contractor to review the retaining wall requirements. Notify the Owner and the Architect at least 3 days in advance of the time of the meeting.
1.6
DELIVERY, STORAGE, AND HANDLING
A.
Store products in manufacturer's unopened packaging until ready for installation (as applicable).
B.
Prevent excessive mud, fluid concrete, or other deleterious materials from coming in contact with and affixing to stone materials.
1.7
PROJECT CONDITIONS
A.
Do not place backfill when subgrade is wet or frozen.
B.
Do not place backfill during wet or freezing weather that prevents conformance with specified compaction requirements.
PART 2 PRODUCTS
 
2.1
MANUFACTURERS
A.
Acceptable Manufacturer: Tri-State Stone & Building Supply, Inc., P. O. Box 34300, Bethesda, MD 20827. Quarry and Yard are located at 8200 Seven Locks Rd., Bethesda, MD 20817; Phone: 301-365-2100; Fax: 301-365-5524; Email: wprunka@carderock.com; Web: http://www.carderock.com.
 
** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
 
B.
Substitutions: Not permitted.
C.
Requests for substitutions will be considered in accordance with provisions of Section 01 60 00.
 
** NOTE TO SPECIFIER ** The following primary paragraphs contain description of various types of stone. Select the products required and delete those not required. Contact the manufacturer for additional information not included in this specification.
 
2.2
VENEER STONE
 
** NOTE TO SPECIFIER ** Veneer Stone is full thickness veneer stone with irregular shapes primarily used as veneer for house fronts, fireplaces, chimneys, or any job requiring stone facing.
 
A.
Carderock Veneer Stone: Mica-schist quartzite veneer stone for use in walls with setting beds of 4 to 6 inches (102 to 152 mm).
1.
Depth: 4 to 6 inches (102 to 152 mm).
2.
Height: 6 inches to 12 inches (152 to 305 mm).
3.
Length: Random lengths up to 60 inches (1525 mm).
 
** NOTE TO SPECIFIER ** Delete one of the following three paragraphs. 30 to 35 sf per ton is for standard grade veneer. 40 to 45 sf per ton is for Premium Snapped veneer.
 
4.
Coverage: 30 to 35 square feet (2.79 to 3.25 square meters) per ton.
5.
Coverage: 40 to 45 square feet (3.72 to 4.18 square meters) per ton.
6.
Texture: Somewhat irregular in shape, many pieces with reasonably square edges for corners.
 
** NOTE TO SPECIFIER ** Delete one of the following two paragraphs. Premium snapped grade has been run through a guillotine to reduce the amount of field trimming and shaping required.
 
7.
Grade: Rubble.
8.
Grade: Snapped.
9.
Grade: Premium snapped.
10.
Color Range: Full color range; various shades of blues, browns, grays and greens.
11.
Material shall conform to the following properties:
a.
Specific gravity of 2.75 when tested in accordance with ASTM C 97.
b.
Minimum density of 170 lbs/cubic ft (2.72 grams per cubic cm) when tested in accordance with ASTM C 97.
c.
Minimum compressive strength of 13,100 average psi (921 kg/cm) when tested in accordance with ASTM C 170.
 
** NOTE TO SPECIFIER **Sawn Ashlar Veneer is fabricated in three specific heights - 3.5", 7.5", and 11.5" - which, when installed with a 1/2" joint, allows installation in multiples. This is the most formal installation style. Stone faces are often pitched by the mason prior to installation.
 
B.
Carderock Sawn Ashlar Veneer Stone: Mica-schist quartzite veneer stone for use in walls with setting beds of 4 to 6 inches (102 to 152 mm).
1.
Depth: 4 to 6 inches (102 to 152 mm).
2.
Height: 3.5, 7.5, 11.5 inches (89, 191, 292 mm).
3.
Length: 6 to 48 inches (152 to 1219 mm).
4.
Coverage: 35 to 40 square feet (3.27 to 3.72 square meters) per ton.
5.
Texture: Sawn top, bottom and ends, split face.
6.
Color Range: Full color range; various shades of blues, grays and greens with some browns.
7.
Material shall conform to the following properties:
a.
Specific gravity of 2.75 when tested in accordance with ASTM C 97.
b.
Minimum density of 170 lbs/cubic ft (2.72 grams per cubic cm) when tested in accordance with ASTM C 97.
c.
Minimum compressive strength of 13,100 average psi (921 kg/cm) when tested in accordance with ASTM C 170.
 
** NOTE TO SPECIFIER ** Thin Veneer is veneer stone for use where a footing or stone ledge is not available. This is natural stone and not a manufactured concrete product.
 
C.
Carderock Thin Veneer: Mica-schist quartzite veneer stone for use where a footing or stone ledge is not available.
1.
Depth: 1.5 to 2 inches (38 to 51 mm).
2.
Height: 2 to 10 inches (51 to 254 mm).
3.
Length: 6 to 14 inches (152 to 356 mm).
4.
Coverage: Product is packaged and sold by the square foot. Corner pieces available separately as required for the project.
5.
Texture: Somewhat irregular in shape.
6.
Color Range: Full color range, various shades of blues, browns, grays and greens.
7.
Material shall conform to the following properties:
a.
Specific gravity of 2.75 when tested in accordance with ASTM C 97.
b.
Minimum density of 170 lbs/cubic ft (2.72 grams per cubic cm) when tested in accordance with ASTM C 97.
c.
Minimum compressive strength of 13,100 average psi (921 kg/cm) when tested in accordance with ASTM C 170.
 
** NOTE TO SPECIFIER ** Random sized Garden Wall Stone is natural thickness stone with irregular shapes primarily used for low landscape walls up to 24 inches (610 mm) in height, but can also be used for gardening border stones and in solid masonry installations of greater height.
 
2.3
GARDEN WALL STONE
A.
Carderock Garden Wall Stone: Mica-schist quartzite for dry or semi-dry stack retaining walls up to 24 inches (610 mm) in height.
1.
Depth: 8 to 12 inches (152 to 254 mm) deep.
2.
Height: 3 to 6 inches (76 to 152 mm).
3.
Length: Random lengths up to 18 inches (457 mm).
4.
Coverage: 18 to 20 square feet per ton.
5.
Texture: Somewhat flat and irregular in shape with one reasonably good face.
6.
Color Range: Full color range, various shades of blues, browns, grays and greens.
7.
Material shall conform to the following properties:
a.
Specific gravity of 2.75 when tested in accordance with ASTM C 97.
b.
Minimum density of 170 lbs/cubic ft (2.72 grams per cubic cm) when tested in accordance with ASTM C 97.
c.
Minimum compressive strength of 13,100 average psi (921 kg/cm) when tested in accordance with ASTM C 170.
 
** NOTE TO SPECIFIER ** Random sized Drywall Stone is natural thickness stone with irregular shapes primarily used for landscape retaining walls, but can also be used as a hand-placed rip-rap in landscape swales and stream banks.
 
2.4
DRYWALL STONE
A.
Carderock Drywall Stone: Mica-schist quartzite for dry or semi-dry stack retaining walls.
1.
Depth: 8 to 14 inches (203 to 356 mm) deep.
2.
Height: 4 inches to 10 inches (102 to 254 mm).
3.
Length: Random lengths up to 24 inches (610 mm).
4.
Coverage: 12 to 15 square feet (1.1 to 1.4 square meters) per ton.
5.
Texture: Somewhat flat and irregular in shape with some stones having one reasonably good face.
6.
Color Range: Full color range, various shades of blues, browns, grays and greens.
7.
Material shall conform to the following properties:
a.
Specific gravity of 2.75 when tested in accordance with ASTM C 97.
b.
Minimum density of 170 lbs/cubic ft (2.72 grams per cubic cm) when tested in accordance with ASTM C 97.
c.
Minimum compressive strength of 13,100 average psi (921 kg/cm) when tested in accordance with ASTM C 170.
 
** NOTE TO SPECIFIER ** Flagstone is primarily used for as a stepper for paving projects such as garden pathways, water feature spillways and rustic coping. Flagstone is provided in larger, irregular shaped sheets of natural thickness stone.
 
2.5
FLAGSTONE/SLABS
A.
Carderock Flagstone/Slabs: Mica-schist quartzite for stepping stones or coping.
1.
Height: 2 inches to 5 inches (51 to 127 mm).
2.
Area: 1.5 to 5 square feet (0.14 to 0.47 square meters) per stone.
3.
Coverage: Varies.
4.
Texture: Broad and relatively flat.
5.
Color Range: Full color range, various shades of blues, browns, grays and greens.
6.
Material shall conform to the following properties:
a.
Specific gravity of 2.75 when tested in accordance with ASTM C 97.
b.
Minimum density of 170 lbs/cubic ft (2.72 grams per cubic cm) when tested in accordance with ASTM C 97.
c.
Minimum compressive strength of 13,100 average psi (921 kg/cm) when tested in accordance with ASTM C 170.
 
** NOTE TO SPECIFIER ** Boulders are quarried stone of varying shape and dimension. 300 to 5000 pounds (136 to 2268 kg) in weight. Prior to specifying, ensure that the equipment required to place heavy boulder can access the site.
 
2.6
BOULDERS
A.
Carderock Landscape Boulders: Mica-schist quartzite boulders.
1.
Weight: 300 to 5000 pounds (136 to 2268 kg)
 
** NOTE TO SPECIFIER ** Delete one of the following two paragraphs.
 
2.
Grade: Standard.
3.
Grade: Select.
4.
Color Range: Full color range, various shades of blues, browns, grays and greens.
 
** NOTE TO SPECIFIER ** Tumbled Stone is smooth as if it had been in a riverbed for eons. Primarily used for ground cover, in water features or dry stream beds.
 
2.7
TUMBLED STONE
A.
Carderock Tumbled Stone: Mica-schist quartzite smooth tumbled stone.
1.
Size: Varies from 2 to 24 inches (51 to 610 mm) in diameter.
2.
Texture: Smooth.
3.
Color Range: Full color range, various shades of blues, browns, grays and greens.
2.8
ACCESSORY MATERlALS
 
** NOTE TO SPECIFIER ** The following paragraphs is for use with stone walls. Delete if not required.
 
A.
Crushed Limestone Fill: Granular limestone fill graded as follows:
1.
100 to 75 percent passing a 2-inch (51 mm) sieve.
2.
100 to 75 percent passing a 3/4-inch (19 mm) sieve.
3.
100 to 20 percent passing a No. 4 sieve.
4.
0 to 60 percent passing a No. 40 sieve.
5.
0 to 35 percent passing a No. 200 sieve.
 
** NOTE TO SPECIFIER ** The following two paragraphs are for use with stone retaining walls. Delete if not required.
 
B.
Drainage Aggregate: Free draining, uniformly graded stone placed immediately behind the face of the stone wall and graded as follows:
1.
100 percent passing a 1-inch (25 mm) sieve.
2.
100 to 90 percent passing a 3/4-inch (19 mm) sieve.
3.
0 to 10 percent passing a 1/2 inch (12.5 mm) sieve.
C.
Geotextile: Non-woven geotextile, AASHTO M288, Class 3.
PART 3 EXECUTION
 
3.1
EXAMINATION
A.
Do not begin installation until substrates have been properly prepared.
B.
Verify substrate is level, smooth, and capable of supporting stone imposed loads.
C.
Verify grades, contours and elevations of substrate are correct.
D.
Verify substrate base supporting stone has been properly compacted.
E.
If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
3.2
PREPARATION
A.
Clean surfaces thoroughly debris, roots, branches and extraneous materials prior to installation.
B.
Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
3.3
INSTALLATION - GENERAL
A.
Install in accordance with manufacturer's instructions.
3.4
INSTALLATION - VENEER STONE
A.
Do not begin installation until backing structure is plumb, bearing surfaces are level and substrates are clean and properly prepared.
B.
Coordinate placement of reinforcement, anchors and accessories, flashings and other moisture control products supplied by other sections.
C.
Clean all built-in items of loose rust, ice, mud, or other foreign matter before incorporating into the wall. All ferrous metal built into the wall shall be primed or galvanized.
D.
If required, provide temporary bracing during installation of masonry work. Maintain bracing in place until building structure provides permanent support.
E.
Install veneer stone and mortar in accordance with ACI 530.1/ASCE 6/TMS 602 Specifications for Masonry Structures.
F.
Maintain masonry courses to uniform dimension(s). Form vertical and horizontal joints of uniform thickness.
G.
Pattern Bond:
 
** NOTE TO SPECIFIER ** Coordinate the following paragraphs with the materials specified and with the bond required. Edit as required.
 
1.
Lay stone with the bedface, splitface or weather edge exposed. Take care to avoid a concentration of any one color to any one wall surface.
2.
Maintain an approximate 1/2 inch (12.5 mm) joint, as stone allows.
3.
If a dry stack installation is desired, stone is to be laid tight to one another, as the stone will naturally allow.
4.
Do not use stacked vertical joints.
5.
Lay out work in advance and distribute color range of stone uniformly over total work area.
H.
Anchoring: Tie stone to backing as required by the applicable Building Code. As a minimum tie stone to backing with metal ties as follows:
1.
Provide minimum one tie per 2 square feet of wall surface area.
2.
Maximum spacing between adjacent ties shall be 16 inches (406 mm) vertically and 32 inches (813 mm) o.c. horizontally.
3.
Ties shall be imbedded in horizontal joints to a 2 inch (51 mm) minimum depth.
4.
Provide additional ties at openings within 12 inches (305 mm) of opening.
I.
Joining Work: Where fresh masonry joints partially set masonry.
1.
Remove loose stone and mortar.
2.
Clean and lightly wet surface of set masonry.
3.
To avoid a horizontal run of masonry rack back 1/2 inch(12.5 mm) the length of stone in each course.
4.
Toothing is not permitted.
J.
Joints:
1.
Lay stone with an approximate 1/2 inch (12.5 mm) mortar joint, as stone allows.
2.
Tool joints when "thumb-print" hard with a round jointer slightly larger than the width of the joint.
3.
Trowel-point or concave tool exterior joints below grade.
4.
Flush cut joints to be finished with a soft brush only.
5.
Retempering or mortar is not permitted.
6.
Use non-corrosive stone shims as required to maintain uniform joint thickness.
 
** NOTE TO SPECIFIER ** Flashings, weeps and wall penetrations require special attention on drawing details. Located and detail properly.
 
K.
Flashing:
1.
Clean surface of masonry smooth and remove any projections, which could damage flashings.
2.
Place flashing on a bed of mortar.
3.
Cover flashing with mortar.
4.
Provide weep vents at head joints placed every 16 inches (406 mm) along the first course immediately above flashing or as recommended by weep vent manufacturer.
5.
Use a non-corrosive, fluid conducting polymer mesh such as "Mortar Net", "Control Cavity", "CavClear" or equal to keep the air space behind the installed veneer stone, clear of mortar and mortar droppings.
 
** NOTE TO SPECIFIER ** Verify control and expansion joints are correctly indicated and detailed on Drawings. Control joints shall be designed in accordance with National Concrete masonry Association TEK 10-2B for control joint design and locations.
 
L.
Control and Expansion Joints: Keep joints open and free of debris. Coordinate control joint in accordance with Section 07 90 00 - Joint Protection.
M.
Sealant Recesses: Provide open joint 3/4 inch (19 mm) deep and 1/4 inch (6 mm) wide, where masonry meets doors, windows and other exterior openings. Coordinate sealant joints in accordance with Section 07 90 00 - Joint Protection.
N.
Cutting And Fitting: Cut and fit for chases, pipes, conduit, sleeves, grounds, and other penetrations and adjacent materials
 
** NOTE TO SPECIFIER ** Dry set Garden Wall stone walls can be a maximum of 24 inches in height. Garden Wall stone can be set in solid masonry walls of greater height, as determined by a Structural Engineer. Natural, drywall stone walls should not be taller than five feet. If a taller wall is required, it is recommended that the wall be terraced into two or more smaller walls or by using a different type of wall backing material, such as concrete block. If wall is acting as a retaining wall is should be installed using a batter slope method. Consult the SULIS Implementation Report on Natural Stone Retaining Walls for more information.
 
3.5
INSTALLATION - DRYWALL STONE WALLS
 
** NOTE TO SPECIFIER ** Curves should be as large as possible to eliminate jagged curves. Smaller pieces should be used around curves. Larger pieces will create flat spots on the curve and the set backs from one course to the next will not be even.
 
A.
Lay out wall to the lines and grades indicated on the drawings. Use the string line and stakes to mark off any straight portions and marking paint to draw out any curves.
B.
Prepare a trench base that follows a string line and/or marking paint. Trench should be a minimum of 12 inches (305 mm) deep by 6 inches (152 mm) wider than the stone.
C.
Fill the trench with 4 inches (102 mm) of crushed limestone. Level and compact the crushed stone thoroughly with a plate compactor and add another 2 inches (51 mm) of crushed limestone on top of the compacted stone.
D.
Level the base course of stone by placing the first layer of stone on the crushed limestone base. Check for level front to back and side to side and adjust accordingly with the large mallet.
E.
Stack the second course on top of the base course. Do not line up the seams between the stones from one course to the other. Select stones that fit well with those on either side. Proper fit of stones, and thereby the most desirable finished product, shall be achieved by trimming and shaping stones using a mason hammer and chisels. Shim the stones as required to eliminate wobbling.
 
** NOTE TO SPECIFIER ** The following three paragraphs refer to retaining walls. Edit as required for your project. Delete if not required.
 
F.
If the wall is to be larger than 3 feet high (914 mm), place a perforated drain tile behind the base course and then buried by the drainage aggregate.
G.
Each course should be set back at least 3/4 inch to allow the wall to lean back into the ground that it will be retaining. Shim the backs of the stones to eliminate wobbling. Overall batter of the wall shall be 1 inch horizontal for each 1 foot of vertical height.
H.
Progressively backfill the wall with the drainage aggregate after each two or three courses are stacked. Prior to backfilling, lay the geo-textile fabric on the soil behind the wall, and place the drainage aggregate between the wall and the fabric. The aggregate shall be a minimum of 8 to 12 inches (203 to 305 mm) from the wall to the fabric. Compact each layer of aggregate thoroughly. Fill soil in behind the fabric as the stone is added.
I.
Finish the top of the wall with well fitted stones matched to the wall configuration.
3.6
PROTECTION
A.
Protect installed products until completion of project.
B.
Protect adjacent work areas and finish surfaces from damage during product installation.
C.
Cover the top of unfinished stone masonry work to protect it from the weather.
D.
Prevent staining of stone from mortar, grout, sealants, and other sources. Immediately remove such materials from stone without damage to the stonework.
E.
Protect base of walls from rain-splashed mud and mortar splatter by means of coverings spread on ground and over wall surface.
F.
Adjust or reset any materials disturbed by successive operations.
G.
Touch-up, repair or replace damaged products before Substantial Completion.
3.7
CLEANING
A.
Clean exposed faces to remove dirt and stains which may be on units after erection and completion of joint treatments.
B.
Wash and rinse in accordance with stone supplier's instruction.
C.
Do not use cleaning materials or processes which could change the character of the exposed finishes.
 
** NOTE TO SPECIFIER ** Use the following article if a schedule is required to locate different types and sizes of stone materials and their locations for the project. Coordinate the schedule designations with the Drawings.
 
3.8
SCHEDULES
END OF SECTION