SECTION 04210

	TerraGlas - Terra Cotta Composite 

PART 1  	GENERAL

1.1	SECTION INCLUDES

A.	Terra Cotta composite with glass fiber reinforcing for terra cotta replication as indicated on the drawings.
1.2	RELATED SECTIONS
A.	Division 04 Section “Terra Cotta Restoration”.
B.	Division 04 Section “Clay Masonry Restoration”.
C.	Division 05 Section “Metal Fabrications” for supplementary supports for large items.
D.	Division 06 Section “Rough Carpentry” for supplementary supports for large items.
D.	Division 09 Section “Paints and Coatings” for field painting and sealing prior to painting.
1.3	REFERENCES
A.	ASTM C 150 - Standard Specification for Portland Cement; 1999a.
B.	ASTM C 33-99 Concrete Aggregates
C.	ASTM C 666 – Standard test Method for Resistance of Concrete to Rapid Freezing and Thawing
D.	ASTM C 979-82(1993):  Pigments for Integrally colored Concrete.
E.	ASTM E 84 - Standard Test Method for Surface Burning Characteristics of Building Materials; 1999.
F.	ASTM G 23 - Standard Practice for Operating Light-Exposure Apparatus (Carbon-Arc Type) With and Without Water for Exposure of Nonmetallic Materials; 1996.
1.4	SUBMITTALS
A.	Submit under provisions of Section 01300.
B.	Product Data:  Manufacturer's data sheets on each product to be used, including dimensions, finishes, storage and handling requirements and recommendations, and installation recommendations.
C.	Shop Drawings:  For custom items, provide drawings showing dimensions, layout, joints, details, and interface with adjacent work; include field measured dimensions of the spaces where items are to be installed, if critical to proper installation.
D.	Samples:  For each custom finish specified, two samples, minimum size 6 inches (150 mm) square, representing actual product, color, and patterns.
1.5	QUALITY ASSURANCE
A.	Manufacturer: Obtain Terra Cotta Composite as manufactured by a firm specializing in the manufacture of historic terra cotta replication, with a minimum of ten years experience.

B.	Provide a list of projects comparable in size, scope, and complexity as indicated.
C.	Provide verification that terra cotta composite meets or exceeds products specified.
D.	Installer Qualifications:  Regularly engaged and experienced in the installation of replacement terra cotta.
1.6	DELIVERY, STORAGE, AND HANDLING
A.	Transport, lift, and handle units with care, avoiding excessive stress and preventing damage; use appropriate equipment.
B.	Store products in manufacturer's unopened packaging until ready for installation, in a clean dry area protected from weather, moisture and damage; store units upright and not stacked unless permitted by manufacturer.  Product shall be stored clear of the ground on non-staining pallets or other temporary planking.
C.	Protect product from staining, chipping, and other damage.
PART 2  	PRODUCTS
2.1	MANUFACTURERS
A.	Acceptable Manufacturer:  Stromberg Architectural Products Inc; PO Box 8036, I-30 West, 4400 Oneal, Greenville, TX  75404. ASD.  Tel: (903) 454-0904.  Fax: (903) 454-3642.  Email: sales@strombergarchitectural.com.   www.strombergarchitectural.com.
B.	Substitutions:  Not permitted.
C.	Requests for substitutions will be considered in accordance with provisions of Section 01600.
2.2	MATERIALS
A.	Terra Cotta Composite:  Clay, ASTM C 150 cement, aggregate, and polymers reinforced with glass fiber and structural reinforcing as required; asbestos free.
1.	Color:  To match Architect's sample of existing terra cotta.
2.	Surface Texture:  Exposed surface to match Architect’s sample of terra cotta
3.	Density:  140 pcf (2240 kg/cu m).
4.	Shell Thickness:  3/8” to 3/4 inch (9.5 mm), nominal.
5.	Surface Burning Characteristics:  Flame spread index of 0, smoke developed index of 5; when tested in accordance with ASTM E 84.  Fuel contribution of 3.
6.	Weather Resistance:  No significant loss in strength or change in appearance after 200 hours accelerated weathering conducted in accordance with ASTM G 23.
7.	Flexural Strength:  1000 to 1800 psi (6.9 to 12.4 MPa).
8.	Modulus of Elasticity:  2 x 10^5 psi (1370 MPa).
9.	Compressive Strength:  Over 5000 psi (34 MPa).
10.	Outside Corner Radius:  1/16 inch to 1/8 inch (1.5 to 3 mm).
11.	Draft Angle:  3 degrees, minimum, on returns, setbacks, reveals, and grooves.
12.	Provide non-corrosive anchors and reinforced anchoring points as indicated on drawings.
a.	Concealed Anchors:  (Select One) [304 Stainless Steel] [Hot-dipped Galvanized Steel unless otherwise indicated].
2.3	Joint materials
**Select paragraphs below that apply.  Sealant joint is Manufacture’s recommendation for most applications.  Mortar and grout used in the setting of individual pieces within a field of mortared terra cotta** 
1.	Elastomeric Joint sealant per Section 07.
2.	Mortar and Grout materials:
a.	Portland Cement: ASTM C 150 Type I
b.	Hydrated lime:  ASTM C 207 Type S
c.	Aggregate for mortar:  ASTM C 144
d.	Mortar Pigments:  Natural and synthetic iron oxides, compounded for mortar mixes.  Use only pigments with a record of satisfactory performance in terra cotta mortars
e.	Aggregate for grout:  ASTM C 404
f.	Water:  Potable   
PART 3  	EXECUTION
3.1	EXAMINATION
A.	Do not begin installation until substrates have been properly constructed; verify that substrates are plumb and true.
B.	If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
1.	Proceed with installation only after unsatisfactory conditions have been corrected.
D.	Check field dimensions before beginning installation.  If dimensions vary too much from design dimensions for proper installation, notify Architect and wait for instructions before beginning installation.
E.	Verify that bearing surface is plumb and true.
F.	Proceed with installation only after unsatisfactory conditions have been corrected.
3.2	PREPARATION
A.	Clean surfaces thoroughly 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.
C.	Install supplementary temporary and permanent supports as required for proper installation.
3.3	INSTALLATION
A.	Install in accordance with applicable code and manufacturer's recommendations, plumb and true to line; shim where necessary.
C.	Patch exposed anchor points to match color and texture of unit.
D.	Clean Terraglas units according to manufacturer’s written instructions.
1.	Remove dirt, stains, excess sealant or other undesired materials.
2.	Protect surrounding materials and surfaces during cleaning. 
3.4	PROTECTION
A.	Protect installed products until completion of project.
B.	Touch-up, repair or replace damaged products before Substantial Completion.
	END OF SECTION