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Specifications
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Section
08625
Metal Framed Skylights
PART 1 GENERAL
1.01 WORK INCLUDED
A. Product engineering and fabrication techniques, shop
drawings, structural calculations and Professional Engineering
approval stamps for large missile impact tested skylight
designed for a curb mounted application.
B. Fabrication and installation of aluminum and glass skylight
system.
C. Finish of skylight assembly and accompanied flashing metals.
D. Gaskets and sealants.
E. Skylight glass and glazing.
F. Skylight flashing.
1.02 RELATED WORK
A. Section 05120 Structural Steel
B. Section 07510 Roofing
C. Section 07600 Flashing and Sheet Metal
D. Section 07900 Joint Sealers
E. Section 08800 Glass and Glazing
1.03 REFERENCES
A. ASCE 7-96
B. ANSI A58.1, Z97.1-1984
C. ASTM E 330, ASTM E 331, ASTM E 283
D. SBCCI Test Standard for determining impact resistance from
windborne debris. SSTD 12-97
E. Metropolitan Dade County Protocol PA 201, PA 202, PA 203
F American Architectural Manufacturers Association (AAMA) 501,
603.8, 605.2, 607.1
G. Flat Glass Marketing Association (FGMA) Glazing Manual
1.04 QUALITY ASSURANCE
A. Provide a skylight and application that is structurally
sound, impact resistant and weather tight conforming to
applicable testing and performance requirements described
herein.
B. Except as otherwise indicated, requirements for aluminum
skylights , terminology, tolerances,
standards of performance and workmanship are those specified in
ANSI/AAMA.
C. Provide certified independent laboratory test reports from an
accredited laboratory.
D. Provide certification for compliance and approval.
1.05 TESTING AND PERFORMANCE REQUIREMENTS
A Test Units All tests, unless otherwise noted, shall comfort to
the impact, static, cyclic, air and water tests as set forth by
the SBCCI and the Metropolitan Dade County Building Code
Compliance Off.
B. Test Procedure and Performance.
1. Skylights shall conform to criteria for conducting impact,
static, cyclic air and water tests set forth by the SBCCI and
the Metropolitan Dade County Building Code Compliance Office.
2. Impact Test - PA 201-94 and 302.1-302.3.2
a. Missile impact skylight with a solid S4S nominal 2 x 4, #2
surface dry, Southern Pine Of not less than 8'-6'. in length and
9 lbs in weight at a velocity between 50 and 52 ft/sec. without
defined specimen failure.
3. Cyclic Wind Pressure Loading Test - PA203 -94 and
302.4.-302.7.3.
a. Apply loads to the specimen using the cycles specified in The
South Florida Building Code and as in Table 1 of SSTD 12-97
without failure.
b. Specified Design Pressure (DP) should not be less than 75 psf.
4. Uniform Static Pressure Test - PA 202 - 94
a. Conduct air leakage test at 1.57 psf and 6.24 psf in
accordance with ASTM E-283. Air infiltration should not exceed
.06 cfm.
b. Conduct water leakage test in accordance with ASTM E 331
without evidence of any uncontrolled water. Minimum water test
pressure should not be less than 10 psf.
c. Conduct static load test in accordance with ASTM E 330.
Deflection should not exceed L /180 when subject to a uniform
load.
1.06 SUBMITTALS
A. Shop Drawings
1. Submit scaled shop drawings including all conditions of
construction, location diagrams including identification of and
spacing of anchorage, framing members, joinery, glazing
materials and sealant details.
B. Structural Calculations.
1. Provide structural calculations by a licensed structural
engineer demonstrating structural compatibility with project
requirements.
C. Test Reports
1. Provide certified independent laboratory test reports
verifying compliance with requirements in Section 1.05.
D. Samples
1. Submit ( ) 6" lengths of aluminum extrusions.
2. Submit ( ) color samples of finish to be used.
3. Submit ( ) 12" x 12" glass samples to be used.
E. Warranties
1. Provide manufacturer’s warranty in accordance with the
contract documents.
2. Provide glass warranty as furnished by the supplier.
3. Provide installation warranty in accordance with the contract
documents.
1.08 WARRANTY
A. Stating that skylight materials for above project will be
free from defects and workmanship for a period of five (5) years
from date of substantial completion.
B. Stating that glass shall be free from defective materials,
delamination and defects in manufacturer for a period of five
(5) years from date of manufacturer.
C. The contractor shall assume responsibility for handling,
installation and weather seal for a period of one (1) year from
date of substantial completion.
PART 2 PRODUCTS
2.01 MATERIALS
A. Acceptable Skylight Manufacturers
1. TriStar Skylights/Savannah
Trims, Inc.
3567 91 Street, North Suite 4
Lake Park, FL. 33403
(561) 656-2556 (Fax) 561-656-2599
2. Architect Approved Equal
a. Products of other manufacturers must be pre-qualified to bid
not less than 10 days prior to bid date.
b. Submit proof of compliance with SBCCI/Metropolitan Dade
County Code Compliance criteria for large missile impact test
including supporting technical data, engineering calculation,
certification of equivalent experience and samples for
comparison.
B. Aluminum
1. Extruded aluminum structural members shall be 6063-T6 alloy
and temper and not less than nominal .125" wall thickness
for master frame and rafters and not less than a nominal
.100" on purlins.
2. Aluminum caps and closures shall be 6063-T5 alloy and temper
and be not less than nominal .062" wall thickness with
cover plates being not less than nominal .050"
C. Finishes (Select Organic or Anodic)
1. Organic. Finish all exposed areas of aluminum framing and
components in accordance with AAMA 603.8 or 605.2. *Color to be
selected by architect
DESIGNATION DESCRIPTION AAMA SPECIFICATION
AA-M12-C41-R1X Polyester Based * 603.8
AA-M12-C41-RIX Kynar Based * 605.2
2. Anodic. Finish all exposed areas of aluminum framing and
components in accordance with AAMA 607.1
DESIGNATION DESCRIPTION AAMA SPECIFICATION
AA-M10-C22-A41 Anodized 607.1
D. Glazing Gaskets and Setting Blocks
1. Glazing gaskets shall be of extruded dense EPDM, 50 durometer
per ASTM C-509
2. Setting Blocks are to be neoprene with a 90 durometer and
conform to ASTM D2240.
E. Fasteners
1. All fasteners, exterior and framework, are to be 300 series
stainless steel.
2. Cadmium, zinc, nickel plated steel and hot dipped galvanized
are not allowed.
F. Glass
1. Laminated glass shall be Globe Amerada Glass Company’s
P-380 Series Hurricane Glazing . Minimum overall composition
should not be less than 3/8".
2. Contact Savannah Trims Inc. (561-640-0850) for detailed
specifications and glass performance such as reflectivity,
colors, tint and Low E performance.
G. Sealants
1. A sealant that is compatible with all substrates and field
applied in accordance with the manufacturer’s recommendations.
2. Glass to frame sealant should be GE Sillpruf and field
applied in accordance with the manufacturers’s
recommendations.
2.03 FABRICATION
A. Skylights shall be factory fabricated and assembled at
the manufacturer’s factory where feasible. Assemble in the
largest possible sections according to job-site conditions.
B. Design rafter bars and cap to accept glazing gaskets.
C. Cover all exposed to view pressure plates with an extruded
snap in place cover plate.
D. Use setting blocks to support glass.
E. All welding shall be Tig
welding and ground smooth where visible.
F. Locate weep holes to properly drain water to the exterior at
each rafter.
PART 3 EXECUTION
3.01 INSTALLATION
A. After verification of field conditions and properly prepared
openings, install skylight system in strict accordance with
approved submittal drawing.
B. Skylight system must be installed by a factory authorized and
licensed contractor.
C. Protect all dissimilar metals with a heavy coat of zinc
chromate or bituminous paint.
D. Install true and plumb without warping or racking.
E. Apply appropriate sealants where indicated on shop drawings
and in accordance with manufacturers recommendations.
3.02 CLEANING AND PROTECTION
A. Clean all exposed surfaces and remove labels and excessive
silicone from skylight system.
B. Touch up any finish blemish and replace parts that cannot be
successfully cleaned or repaired.
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