Replacing Damaged Or Missing Marble Baseboards
- Procedure code:
- Hsr - Departmental Auditorium Bldg/Wash, Dc - Grier, Brown..
- Last Modified:
REPLACING DAMAGED OR MISSING MARBLE BASEBOARDS
A. This procedure includes guidance on replacing damaged or
missing sections of marble baseboards to match original
and existing surrounding marble.
B. See 01100-07-S for general project guidelines to be
reviewed along with this procedure. These guidelines
cover the following sections:
1. Safety Precautions
2. Historic Structures Precautions
4. Quality Assurance
5. Delivery, Storage and Handling
6. Project/Site Conditions
7. Sequencing and Scheduling
8. General Protection (Surface and Surrounding)
These guidelines should be reviewed prior to performing
this procedure and should be followed, when applicable,
along with recommendations from the Regional Historic
Preservation Officer (RHPO).
A. American Society for Testing and Materials (ASTM)
B. American National Standards Institute, Inc. (ANSI)
B. Custom Building Products
C. Hillyard, Inc.
D. Mapei Corporation
E. H.B. Fuller Co.
A. New marble to match existing surrounding marble complying
with ASTM C97-47.
B. Dry-set mortar such as "Granirapid" Fast-curing, two-
component mortar (Mapei Corporation), "VersaBond Fortified
Thin-set Mortar" (Custom Building Products), "Tilemate Premium
#710 (white)" (Bostik), or approved equal.
1. Complying with ANSI A118.1.
2. Installation should conform with A108.5
C. Cleaning Solution for Marble: Mix 1/8 cup soft soap such
as "Ivory Liquid" (Procter & Gamble), 1 quart distilled
warm water, and 1/8 cup household ammonia.
1. Measure materials by volume
2. Mix ingredients in a clean container (non-metallic)
D. Marble Polish such as "Onex-Seal II" (Hillyard,
Inc.), or approved equal.
E. Clean, potable water
F. Clean, soft cloths
B. Rubber mallet
E. Stiff, fiber bristle brush
3.01 ERECTION, INSTALLATION, APPLICATION
A. Remove and Replace Damaged Marble:
1. Remove existing mortar and clean all areas to be
patched. Remove dust and debris from the area
using a stiff, fiber bristle brush.
2. Cut back damaged marble to sound stonework.
3. Cut replacement marble to fit uniformly using the
smallest joints possible. Marble should match
original and existing surrounding marble closely in color,
thickness and texture in overall appearance. Wherever possible, use
existing matching marble which may have been
stockpiled in the building from previous work.
4. Set marble piece in dry-set mortar following
manufacturer's instructions. Do not extend mortar
beyond edge of patch area.
5. While the mortar is still soft and plastic, adjust
new piece as necessary into its final location.
6. Remove any excess mortar from the face of adjacent
7. Repair any adjacent surfaces that may have been
damaged during the repair work.
8. Support new marble pieces with boards to secure
them in place until the mortar has cured.
B. Clean and Polish the Marble:
1. Apply cleaning solution using a clean cloth or
sponge. Wash in small overlapping areas.
2. Rinse cleaned area with clean, clear water by
wiping the surface with a soft cloth.
3. Dry the surface using a clean chamois or soft, dry
4. Repolish any areas where polish is damaged or worn
END OF SECTION