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SECTION 09 27 00
GFRG FABRICATIONS
 
 
Copyright 2014 - 2016 ARCAT, Inc. - All rights reserved
** NOTE TO SPECIFIER ** GC Products. Inc.; GFRG fabrications for architectural applications.
This section is based on the products of GC Products. Inc., which is located at:
P. O. BOX 1767 601 7th St.
Lincoln, CA 95648
Tel: 916-645-3870
Fax: 916-645-3857
Email: request info (mcoburn@gcproductsinc.com)
Web: www.gcproductsinc.com
[ Click Here ] for additional information.
GC Products, Inc has the reputation as the premier source for architectural products in the United States. Our wide range of products such as: Glass Fiber Reinforced Cement (GFRC), Glass Fiber Reinforced Gypsum (GFRG), Access Panels, and Specialty Finishes are recognized as the highest quality in the industry. Our goal at GC Products is to provide exceptional customer service and quality products that exceed all expectations. Whether it be a residential, commercial, or industrial project we believe that our products and service will bring life to your project.
We also have many other services including custom restoration of older hard to find architecture.
 
PART 1 GENERAL
 
1.1
SECTION INCLUDES
 
** NOTE TO SPECIFIER ** Delete items below not required for project.
 
A.
Glass fiber reinforced gypsum fabrications of the following types:
1.
Access panels.
2.
Columns.
3.
Moldings and trim.
4.
Custom fabrications.
1.2
RELATED SECTIONS
 
** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
 
A.
Section 04 72 00 - Cast Stone Masonry.
B.
Section 05 50 00 - Metal Fabrications.
C.
Section 06 10 00 - Rough Carpentry.
D.
Section 09 21 16.23 - Gypsum Board Shaft Wall Assemblies.
E.
Section 09 90 00 - Painting and Coating.
1.3
REFERENCES
 
** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
 
A.
ASTM C 840 - Standard Specification for Application and Finishing of Gypsum Board.
B.
ASTM E 84 - Standard Test method for Surface Burning Characteristics.
1.4
SUBMITTALS
A.
Submit under provisions of Section 01 30 00 - Administrative Requirements.
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.
C.
Shop Drawings: Indicate overall dimensions, profile and joint treatment.
 
** NOTE TO SPECIFIER ** Delete selection samples if colors have already been selected.
 
D.
Selection Samples: For each finish product specified, two complete sets of color chips representing manufacturer's full range of available colors and patterns.
E.
Verification Samples: For each finish product specified, two samples, minimum size 6 inches (150 mm) square, representing actual product, color, and patterns.
1.5
QUALITY ASSURANCE
 
** NOTE TO SPECIFIER ** Add qualifications. Delete if not required.
 
A.
Manufacturer Qualifications:
B.
Installer Qualifications: Regularly engaged and experienced in the installation of glass fiber reinforced fabrications.
 
** 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: Provide a mock-up for evaluation of surface preparation techniques and application workmanship.
1.
Finish areas designated by Architect.
2.
Do not proceed with remaining work until workmanship, color, and sheen are approved by Architect.
3.
Refinish mock-up area as required to produce acceptable work.
1.6
DELIVERY, STORAGE, AND HANDLING
A.
Delivery: GFRG units shall be crated, palletized or loaded onto the delivery truck at the plant. Product is delivered to the jobsite per project requirements.
B.
Storage: Store GFRG on a level surface protected from weather, moisture and damage. Product shall be appropriately stored until installation.
C.
Handling: GFRG shall be handled to prevent damage to finished surfaces.
1.7
PROJECT CONDITIONS
A.
Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's absolute limits.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
1.8
COORDINATION
A.
Installation and joint treatment of GFRG shall be as specified under Section 09 21 16.23 - Gypsum Board Shaft Wall Assemblies.
PART 2 PRODUCTS
 
2.1
MANUFACTURERS
A.
Acceptable Manufacturer: GC Products. Inc., which is located at: P. O. BOX 1767 601 7th St.; Lincoln, CA 95648; Tel: 916-645-3870; Fax: 916-645-3857; Email: request info (mcoburn@gcproductsinc.com); Web: www.gcproductsinc.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 - Product Requirements.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
2.2
GLASS FIBER REINFORCED GYPSUM FABRICATIONS
A.
Material: Continuous random filament glass fiber mat reinforcing of high density gypsum fabrications. Cast or molded as determined by manufacturer. Glass mat and structural reinforcing as determined by manufacturer.
B.
Finish: Unfinished to receive field joint treatment and finish. Refer to Section 09 21 16.23 - Gypsum Board Shaft Wall Assemblies and 09900.
C.
Physical Characteristics:
1.
Glass Content: 5 to 6 percent by weight.
2.
Density: 103 to 112 pcf. (1648 kgcm to 1792 kgcm).
3.
Flexural Strength: 3000 to 4000 psi (2,068 kPa to 27,579 kPa).
4.
Weight: 2.5 to 6 psf (12 kgf/m2 to 30 kgf/m2).
5.
Compressive Strength: >7600 psi (52,400 kPa).
6.
Hardness (Barcol): 50.
7.
Impact resistance: 8.0 ft lb/sq. inch (0.01 kgf/sq. mm).
8.
Surface Burning Characteristics: Flame spread - 0. Smoke developed - 0.
9.
Shell Thickness: 1/8 inch to 3/16 inch (3 to 5 mm) nominal.
10.
Tolerances:
a.
Draft Angle: 3 degrees minimum on returns, setbacks, reveals and grooves.
b.
Shell Thickness: +1/16, -0 inches (+1.5 mm, -0 mm).
c.
Overall Thickness Dimension: +1/8, -1/8 inches (+3 mm, -3 mm).
d.
Variation from Dimensions: +1/8, -1/8 inches (+3 mm, -3 mm).
e.
Warpage or Bowing: +1/16, -1/16 (+1.5 mm, -1.5 mm).
D.
Fabrication:
1.
Mix: GFRG shall be batched and blended in accordance with ASTM 1355 using the specified mix design.
2.
Application: GFRG mixture shall be hand applied into approved molds that correspond with the approved shop drawings. GFRG shall be then removed from the molds and placed into jigs until cured. Product shall be labeled corresponding to the approved shop drawings.
3.
Finish: GFRG surface is a level four equivalent finish ready to receive primer and paint.
 
** NOTE TO SPECIFIER ** GC Products is the exclusive manufacturer of Stealth Access Panels. Flush mounted Stealth Access Panels are made out of GFRG and disappear into commercial and residential ceilings. Our residential panels include an energy saving gasket that helps seal you living area from the attic. Custom sizes are available upon request. Delete if not required.
 
2.3
ACCESS PANELS
A.
Standard Access Panel: Glass fiber reinforced gypsum surround frame and drop-in rectangular door.
1.
Product: Stealth Access Panels as manufactured by GC Products Inc.
2.
Panel consists of a surround frame with wood embedment and pre-spotted drill holes for installation. The residential panels include an energy saving gasket to keep air from infiltrating the living space.
 
** NOTE TO SPECIFIER ** Access panels are generally specified by their opening sizes. An additional 6 inches (152 mm) needs to be added for the rough opening sizes (see installation detail for clarification).Delete size not required.
 
3.
Residential Access Panel Opening Size (With Gasket):
a.
Model TR-APGR2230: 22 inches by 30 inches (559 mm by 762 mm).
b.
Model TR-APGR3030: 30 inches by 30 inches (762 mm by 762 mm).
 
** NOTE TO SPECIFIER ** Delete size not required.
 
4.
Commercial Access Panel Opening Size:
a.
Model TR-AP009: 9 inches by 9 inches (229 mm by 229 mm).
b.
Model TR-AP012: 12 inches by 12 inches (305 mm by 305 mm).
c.
c.Model TR-AP016: 16 inches by 16 inches (406 mm by 406 mm).
d.
Model TR-AP018: 18 inches by 18 inches (457 mm by 457 mm).
e.
Model TR-AP024: 24 inches by 24 inches (610 mm by 610 mm).
B.
Round Access Panel: Glass fiber reinforced gypsum surround frame and drop-in round door.
1.
Product: Stealth Access Panels as manufactured by GC Products Inc.
 
** NOTE TO SPECIFIER ** Delete size not required.
 
2.
Access Panel Opening Size (Rough opening):
a.
Model TR-RAP0 12: 12 inches (305 mm) diameter (18 inches by 18 inches (457 mm by 457 mm) rough opening).
b.
Model TR-RAP016: 16 inches (406 mm) diameter (22 inches by 22 inches (559 mm by 559 mm) rough opening).
c.
Model TR-RAP018: 18 inches (457 mm) diameter (24 inches by 24 inches (610 mm by 610 mm) rough opening).
d.
Model TR-RAP024: 24 inches (610 mm) diameter (30 inches by 30 inches (762 mm by 762 mm) rough opening).
C.
Hinged Access Panel: Glass fiber reinforced gypsum surround frame and hinged door with lock.
1.
Product: Stealth Access Panels as manufactured by GC Products Inc.
 
** NOTE TO SPECIFIER ** Access panels are generally specified by their opening sizes. An additional 6 inches (152 mm) needs to be added for the rough opening sizes (see installation detail for clarification).Delete size not required.
 
2.
Access Panel Opening Size:
a.
TR-HAP009: 9 inches by 9 inches (229 mm by 229 mm).
b.
TR-HAP012: 12 inches by 12 inches (305 mm by 305 mm).
c.
TR-HAP016: 16 inches by 16 inches (406 mm by 406 mm).
d.
TR-HAP018: 18 inches by 18 inches (457 mm by 457 mm).
e.
TR-HAP024: 24 inches by 24 inches (610 mm by 610 mm).
D.
Fabrication:
1.
Physical Characteristics:
a.
Shell Thickness: 1/8 inch to 3/16 inch (3 mm to 4.8 mm).
b.
Fastener Test Pull Out (wood stud): 525 lb (238 kg) avg.
c.
Fastener Test Pull Out (metal stud): 215 lb (98 kg) avg.
d.
Fastener Push Through Test: 350 lb (159 kg) avg.
e.
Fuel Contribution (ASTM E84): 0.
f.
Flame Spread (ASTM E84): 0.
g.
Smoke Index (ASTM E84): 0.
h.
Combustion (ASTM E84): Non-combustible.
i.
Class A Non-Rated.
2.
Material: Units shall be prefabricated with high-density gypsum, reinforced with continuous random filament glass fiber mat and structural reinforcing as specified.
 
** NOTE TO SPECIFIER ** GC Products offer a variety of both GFRC and GFRG columns. Available in different styles, shapes, diameters, and heights, GFRC and GFRG columns are a high quality, easy to install product that will ensure the beauty of your project for years to come. Custom columns, bases, and capitals are available upon request. Delete if not required.
 
2.4
COLUMNS
A.
Product: GFRG Columns as manufactured by GC Products Inc.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
B.
Columns with Base and Capital:
 
** NOTE TO SPECIFIER ** Delete type not required.
 
1.
Shaft Type: Straight.
2.
Shaft Type: Tapered.
3.
Shaft Type: Closed fluted.
4.
Shaft Type: Open fluted.
 
** NOTE TO SPECIFIER ** Delete style not required.
 
5.
Shaft Style: Standard Straight.
6.
Shaft Style: Offset Segmented.
7.
Shaft Style: Segmented.
 
** NOTE TO SPECIFIER ** Delete size not required.
 
8.
Shaft Size: As indicated or required by the drawings.
9.
Shaft Size: 12 inch (305 mm) shaft diameter.
10.
Shaft Size: 16 inch (406 mm) shaft diameter.
11.
Shaft Size: 18 inch (457 mm) shaft diameter.
12.
Shaft Size: 24 inch (610 mm) shaft diameter.
13.
Base and capital style as indicated on the drawings.
14.
Provide either tape or caulk joint as indicated or required by the drawings.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
C.
Columns Covers:
 
** NOTE TO SPECIFIER ** Delete type not required.
 
1.
Shaft Type: Straight round.
2.
Shaft Type: Tapered round.
3.
Shaft Type: Square.
4.
Shaft Type: Elliptical.
 
** NOTE TO SPECIFIER ** Delete style not required.
 
5.
Shaft Style: Standard Straight.
6.
Shaft Style: Offset Segmented.
7.
Shaft Style: Segmented.
8.
Shaft Size: As indicated or required by the drawings.
9.
Provide either tape or caulk joint as indicated or required by the drawings.
 
** NOTE TO SPECIFIER ** GC Products offers a variety of standard moldings. If your project demands classic plaster molding, GFRG offers an easy to install, cost effective solution. GFRC moldings are lightweight and easy to install available different textures and colors to fit any projects specifications. GC Products can offer the right trim, molding, or light cove to fit your project's needs. Custom moldings are available upon request. Delete if not required.
 
2.5
MOULDINGS AND TRIM
A.
Product: GFRG Columns as manufactured by GC Products Inc.
B.
Types and Profiles: Provide the following moulding and trim as indicated on the drawings:
 
** NOTE TO SPECIFIER ** Delete profiles not required.
 
1.
Moulding profiles and sizes as indicated.
2.
Cornice profiles and sizes as indicated.
3.
Light cove profiles and sizes as indicated.
4.
Light cove and reflector profiles and sizes as indicated.
5.
Base board profiles and sizes as indicated.
6.
Ceiling dome profiles and sizes as indicated.
7.
GFRC veneer wall panels and wall trim profiles and sizes as indicated.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
2.6
CUSTOM FABRlCATlONS
 
** NOTE TO SPECIFIER ** GC Products has the ability to provide full service design and fabrication for all your themed environment needs. From conceptual design to on site murals, we are able to provide affordable, lightweight products that will stand the test of time. From restaurants and casinos, to 3D stages settings and custom homes, GC Products Themed Environments is your one stop shop. Delete if not required.
 
A.
Themed Environments:
 
.** NOTE TO SPECIFIER ** Historical Restoration work can be intricate and tedious work. GC Products' management team has over 45 years of experience in cement and plaster restoration products. We have the ability to reproduce almost any cement or gypsum artifacts new with historical feel. Delete if not required.
 
B.
Historical Restoration:
PART 3 EXECUTION
 
3.1
EXAMINATION
A.
Do not begin installation until substrates have been properly prepared.
B.
If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
C.
Verify field dimensions before beginning installation.
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 temporary and permanent supplementary supports as required for proper installation.
3.3
INSTALLATION
A.
Install in accordance with applicable code and manufacturer's instructions, plumb and true to line, shims were necessary.
B.
Provide expansion joints where moving joints occur in the supporting substrate.
 
.** NOTE TO SPECIFIER ** Access panel installation. Delete if not required.
 
C.
Install Stealth Frame with #6 buglehead screws in countersunk holes in frame.
D.
Coordinate work with Section 09 21 16.23 - Gypsum Board Shaft Wall Assemblies. Join pieces with cemented butt joints and finish joints. Joint treatment shall comply with ASTM C 840 - Level 5 finish treatment.
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