INSTALLATION:
						Glass Block

SPECIFICATION	       GLASS BLOCK MORTAR
							Mortar for Glass Block

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DESCRIPTION: A factory-controlled blend of Portland cement, sand and chemicals specifically designed for the installation of glass block (see technical data sheet for additional information).

Specify KER 104 Glass Block Mortar for glass block installations in exterior and interior applications.

When specifying KER 104 Glass Block Mortar in the Glass Unit Masonry Section selected,.
add appropriate articles or paragraphs under the applicable PART as indicated.
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PART 1 GENERAL

SUBMITTALS

Product Data: Submit manufacturer’s technical information and installation instructions for materials required.

QUALITY ASSURANCE

Regulatory Requirements: Masonry materials and workmanship shall meet the requirements of the building codes that are applicable to the jurisdiction in which the project is located.

DELIVERY, STORAGE AND HANDLING

Deliver and store packaged materials in original containers with seals unbroken and labels intact until time of use.  Prevent damage or contamination to materials by water, freezing, foreign matter or other causes.

Deliver and store materials on site at least 24 hours before work begins.

Provide heated and dry storage facilities on site.

PROJECT CONDITIONS

Maintain environmental conditions and protect work during and after installation to comply with referenced standards and manufacturer’s printed recommendations.

Maintain temperature at not less than 40 degrees F (4 degrees C) in tiled areas during installation and for 72 hours after completion, unless higher temperatures are required by referenced installation standards or manufacturer’s printed instructions.

PART 2 PRODUCTS

MORTAR MATERIALS

MORTAR: KER 104 Glass Block Mortar, pre-packaged factory controlled blend of Portland cement, sand, and chemicals as manufactured by MAPEI CORPORATION, specifically designed for glass block.

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Select PLASTIJOINTS acrylic latex additive when water resistance and improved strength is desired (see specifications sheet).
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MIXES

Mix factory-prepared mortar in accordance with manufacturer’s printed instructions.

PART 3 EXECUTION

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Specifications for surface conditions are listed in the beginning of the specification of MAPEI’s Architectural Binder.  These specifications should be called out with the related work sections.  Delete non-applicable conditions.  (Refer to ANSI EXPLANATION AND NOTES section:  AN-3 RELATED WORK SPECIFIED IN OTHER SECTIONS.)
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EXAMINATION

Examine supporting structure and conditions under which glass unit masonry is to be installed.  Do not proceed with the installation of glass unit masonry work until unsatisfactory conditions have been corrected in a manner acceptable to the installer.

ERECTION, INSTALLATION, APPLICATION

General requirements for Glass Unit Masonry Panels: In accordance with glass unit masonry manufacturer and specified requirements where the specified requirements conflict with the manufacturer’s printed instructions, the manufacturer’s printed instructions shall govern.

Mortar Joints: In accordance with specified requirements and mortar manufacturer’s printed instructions.

PROTECTION

Furnish temporary protection for exposed masonry corners subject to injury.

When exposed to the weather, carefully cover tops of walls that are left incomplete at the conclusion of the day’s work with tarpaulins or other approved covering.

Protect all finished work against freezing for a period of not less than 48 hours by means of enclosures, artificial heat, or such other protective methods as may be required.

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When dealing with cement-based products, it should be noted that temperature and humidity during and after installation of tile affect final curing time, i.e., low temperatures (60 degrees and under) and high humidity (70% and above) will delay final cure time.
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For further information and technical assistance, contact:

				     MAPEI CORPORATION
				     1501 WALL STREET
				     GARLAND, TEXAS 75041-4046
				     1-800-992-6273