SECTION 08 51 13 ALUMINUM WINDOWS

PART 1 GENERAL

1.01	Work Included

A.	Furnish and install aluminum architectural windows complete with hardware and related components as shown on drawings and specified in this section.

B.	All windows shall be EFCO® Series 811 (811G) Thermal Fixed configuration.  Other manufacturers requesting approval to bid their product as an equal must submit the following information fifteen days prior to close of bidding.
1.	A sample window, 24" (610 mm) x 36" (919 mm) single unit, as per requirements of architect.
2.	Test reports documenting compliance with requirements of Section 1.05.

NOTE: Specify glass and glazing in this section if window assemblies are to be glazed by the window manufacturer.  If glazing is to be done by a different contractor, glass and glazing should be specified in Section 08 81 00.  EFCO recommends that the window manufacturer perform the glazing.

C.	Glass and Glazing
1.	All units shall be factory glazed. 
	OR
1.	Reference Section 08 81 00 for Glass and Glazing.

D.	Single Source Requirement
1.	All products listed in Section 1.02 shall be by the same manufacturer.

NOTE: List work and materials related to this section but specified in other sections.  EFCO recommends that one manufacturer furnish all applicable Division 8 products to ensure consistent product quality and compatibility.

1.02	Related Work

A.	Section 08 32 13 – Sliding Aluminum – Framed Glass Doors
B.	Section 08 41 13 – Aluminum – Framed Entrances and Storefronts
C.	Section 08 44 13 – Glazed Aluminum Curtain Walls
D.	Section 08 44 33 – Sloped Glazing Assemblies
E.	Section 10 71 13 – Exterior Sun Control Devices

1.03	Items Furnished but Not Installed

1.04	Items Installed but Not Furnished

1.05	Laboratory Testing and Performance Requirements

A.	Test Units
1.	Air, water, and structural test unit shall conform to requirements set forth in ASTM E 283, ASTM E 331, and ASTM E 330 with manufacturer's standard locking/operating hardware and glazing configuration.
2.	Thermal test unit sizes shall consist of a fixed window.

B.	Test Procedures and Performances
1.	Windows shall conform to all the following specific performance requirements.

2.	Air Infiltration Test
a.	With ventilators closed and locked, test unit in accordance with ASTM E 283 at a static air pressure difference of 6.27 psf (300 Pa).
b.	Air infiltration shall not exceed .10 cfm/SF (.50 l/s•m²) of unit.
3.	Water Resistance Test
a.	With ventilators closed and locked, test unit in accordance with ASTM E 331/ASTM E 547 at a static air pressure difference of 15.0 psf (730 Pa).
b.	There shall be no uncontrolled water leakage.
4.	Uniform Load Deflection Test   

NOTE: Glass type may limit D.P. reference Section 2.01.C

a.	With ventilators closed and locked, test unit in accordance with ASTM E 330 at a static air pressure difference of ___ psf, positive and negative pressure.
b.	No member shall deflect over L/175 of its span.
5.	Uniform Load Structural Test   

NOTE: Glass type may limit D.P. reference Section 2.01.C

a.	With ventilators closed and locked, test unit in accordance with ASTM E 330 at a static air pressure difference of 150 psf (7200 Pa) , both positive and negative.
b.	At conclusion of test there shall be no glass breakage, permanent damage to fasteners, hardware parts, support arms or actuating mechanisms, nor any other damage that would cause the window to be inoperable.
6.	Forced Entry Resistance
a.	Windows shall be tested in accordance to ASTM F 588 or AAMA 1302.5 and meet the requirements of performance level 40.
7.	Condensation Resistance Test (CRF)
a.	Test unit in accordance with AAMA 1503.1.
b.	Condensation Resistance Factor (CRF) shall not be less than ___ (frame) when glazed with ___ center of glass U-Factor. (See chart at end of section).
8.	Condensation Resistance (CR)
a.	With ventilators closed and locked, test unit in accordance with NFRC 500-2010.
b.	Condensation Resistance (CR) shall not be less than ___ when glazed with ___ center of glass U-Factor. (See chart at end of section).
9.	Thermal Transmittance Test (Conductive U-Factor)
a.	With ventilators closed and locked, test unit in accordance with NFRC 100-2010.
b.	Conductive thermal transmittance (U-Factor) shall not be more than ___ BTU/hr•ft2•°F
( ___ W/m²•K) when glazed with ___ center of glass U-Factor. (See chart at end of section).

Glass Comparison Chart	
Glass	C.O.G.2
U-Factor	U-Factor1	Frame
CRF3	CR1	
1” IG	0.47	0.58 BTU/hr•ft²•ºF
(3.29 W/m²•K)	63	40	
1” IG	0.29	0.44 BTU/hr•ft²•ºF
(2.50 W/m²•K)	63	41	
1” IG	0.24	0.39 BTU/hr•ft²•ºF
(2.21 W/m²•K)	63	42	

1U-Factor and Condensation Resistance (CR) are based on a nominal size of 47" (1200 mm) x 59" (1500 mm) using NFRC-100, and 500 - 2010.  2Intercept® Spacer.  3Based on AAMA 1503.1

C.	Project Wind Loads

NOTE: Architect to specify design wind pressure, both positive and negative required by the governing building code, as calculated from ANSI A58.1, or as determined by boundary layer wind tunnel testing. Use 20.0 psf (958 Pa) as minimum.

1.	The system shall be designed to withstand the following loads normal to the plane of the wall:
a.	Positive pressure of   ___ psf ( ___ Pa) at non-corner zones.
b.	Negative pressure of ___ psf ( ___ Pa) at non-corner zones.
c.	Negative pressure of ___ psf ( ___ Pa) at corner zones.

D.	Additional test criteria for small missile impact
1.	Small Missile Level A Impact Test conducted on test units in accordance with TAS 201 or ASTM E 1886/E 1996.  Upon completion of the missile impact tests, the test units shall be tested in accordance with TAS 203 or ASTM E 1996 cyclic load test.

E.	Additional test criteria for large missile impact
1.	Large Missile Level (C or D) Impact Test conducted on test units in accordance with TAS 201 or ASTM E 1886/E 1996.  Upon completion of the missile impact tests, the test units shall be tested in accordance with TAS 203 or ASTM E 1996 cyclic load test.

NOTE: Insert at discretion of specifier.

F.	Anti-Terrorism Force Protection Requirements – DoD Unified Facilities Criteria
1.	Design to meet the requirements of UFC 4-010-01 DoD MINIMUM ANTITERRORISM STANDARDS FOR BUILDINGS, 9 February 2012.
2.	 Design of framing and connections shall be based on the following design criteria:
a.	Standoff Distance of ___ ft.
b.	Applicable Explosive Weight of ___.  Type I or Type II - Select one
c.	Level of Protection of ___.  Low or Very Low - Select one
3.	Window manufacturer shall provide, with their bid/quote, a “Blast Narrative” describing which design method of the UFC 4-010-01 was utilized to show product compliance to the performance specification in F.2.a., b. and c. above.

NOTE: Insert at discretion of specifier.

G.	Anti-Terrorism Force Protection Requirements – GSA-ISC Design Criteria
1.	Design of framing and connections shall be based on inelastic dynamic analysis utilizing the following design criteria:
a.	Peak reflective pressure ___ psi at an impulse of ___ psi-msec.
2.	GSA glass performance level (based on Wingard 5.5.1) shall be ___.  1, 2, 3a, 3b, 4, 5
3.	End rotations of framing members supporting laminated glass shall not exceed ___ degrees.
4.	Ductility of framing members supporting laminated glass shall not exceed ___.
5.	Maximum deflection of framing members supporting laminated glass shall not exceed L/ ___.
6.	 Window manufacturer shall provide, with their bid/quote, a sample calculation using non-linear dynamic analysis methods demonstrating product compliance to the performance specifications for a typical member for the project.
7.	Window manufacturer shall provide, with their bid/quote, a “Blast Narrative” to accompany the dynamic calculations in section G.6. “Blast Narrative” shall define design methods and philosophy used by the manufacturer to show product compliance to the performance specifications in Section G above.
1.06	Field Testing and Performance Requirements

NOTE: Insert at discretion of specifier.

A.	Windows shall be field tested in accordance with AAMA 502, “Voluntary Specification for Field Testing of Windows and Sliding Glass Doors,” using Test Method ___.

NOTE: Insert A or B for test method.  Test Method A will be used unless Test Method B is selected here.  AAMA 502 specifies air infiltration and water resistance field testing for three (3) windows immediately after installation begins.  Default performance values for air infiltration and water penetration can also be specified.  Any of the following optional paragraphs may be added to modify the standard specification; however, consideration should be given to the cost of additional testing.

1.	Test one additional window or two percent of the window installation, whichever is greater, for air infiltration and water penetration as specified.
2.	Cost for all successful tests, both original and retest shall be paid by the owner.  All unsuccessful tests, both original and retest, shall be paid by the responsible contractor.
3.	Testing shall be by an AAMA accredited testing agency selected by the architect and window manufacturer and employed by the responsible contractor.
4.	Air infiltration field tests shall be conducted at the same uniform static test pressure as the laboratory test unit.  The Maximum allowable rate of air leakage shall not exceed 1.5 times the laboratory test unit for hardware and glazing types consistent with the laboratory test unit.  Performance values may be reduced due to deviations from the laboratory test unit such as product size, configuration, hardware selected, and glazing configuration.  The field test air leakage rate shall not exceed 1.5 times the maximum allowable laboratory performance specified in the testing criteria listed in Section 1.05.A.1 for any configuration.
5.	Water penetration field tests shall be conducted at a static test pressure of 2/3 of the laboratory test performance values for hardware and glazing types consistent with the laboratory test unit.  Performance values may be reduced due to deviations from the laboratory test unit such as product size, configuration, hardware selected, and glazing variations.  The field test water test pressure shall not be less than 2/3 of the minimum allowable laboratory performance specified in the testing criteria listed in Section 1.05.A.1 for any configuration.

1.07	Quality Assurance

A.	Provide test reports from AAMA accredited laboratories certifying the performance as specified in 1.05.

B.	Test reports shall be accompanied by the window manufacturer’s letter of certification, stating the tested window meets or exceeds the referenced criteria for the appropriate window type.

NOTE: Insert for projects in the State of Florida

C.	All products shall have Florida Product Approval numbers compliant with Rule 9B-72.  Products configured, sized or anchored differently than the approved specimen must follow the guidelines of Florida Statute 553.8425.  Submit supplementary testing or engineer’s calculations to substantiate any deviation.

D.	All products shall bear a permanent label affixed to the product according to FBC.

1.08	References

1.09	Submittals

A.	Contractor shall submit shop drawings; finish samples, test reports, and warranties.
1.	Samples of materials as may be requested without cost to owner, i.e., metal, glass, fasteners, anchors, frame sections, mullion section, corner section, etc.

B.	An NFRC Component Modeling Approach (CMA) generated label certificate shall be provided by the manufacturer. The label certificate shall be project specific and will contain the thermal performance ratings of the manufacturer’s framing combined with the specified glass, and the glass spacer used in the fabrication of the glass, at NFRC standard test size as defined in table 4-3 in NFRC 100-2010.

1.10	Warranties

A.	Total Window Installation
1.	The responsible contractor shall assume full responsibility and warrant for one year the satisfactory performance of the total window installation which includes that of the windows, hardware, glass (including insulated units), glazing, anchorage and setting system, sealing, flashing, etc., as it relates to air, water, and structural adequacy as called for in the specifications and approved shop drawings.
2.	Any deficiencies due to such elements not meeting the specifications shall be corrected by the responsible contractor at their expense during the warranty period.

NOTE: Standard warranty period is 5 years or extended 10 years.

B.	Window Material and Workmanship
1.	Provide written guarantee against defects in material and workmanship for ___ years from the date of final shipment.

C.	Glass
1.	Provide written warranty for insulated glass units that they will be free from obstruction of vision as a result of dust or film formation on the internal glass surfaces caused by failure of the hermetic seal due to defects in material and workmanship.
2.	Warranty period shall be for 10 (ten) years.

D.	Finish

NOTE: Select for Anodic Finish:  Standard warranty period is 3 years or extended 5 years or 10 years.

1.	Warranty period shall be for ___ years from the date of final shipment.

	OR

NOTE: Select for Organic Finish:  Standard warranty period is 5 years, or extended 10 years, or 15 years or 20 years.

1.	Warranty period shall be for ___ years from the date of final shipment.
2.	Provide organic finish warranty based on AAMA standard 2605.

PART 2 PRODUCTS

2.01	Materials

A.	Aluminum 
1.	Extruded aluminum shall be 6063-T6 alloy and tempered.

NOTE: EFCO recommends that the window manufacturer furnish, and factory glaze the glass as specified by the architect.  For this reason, it is desirable that Glass and Glazing be made part of this section. 

B.	Glass 
1.	Non-impact 
a.   Insulated glass shall be nominal 1” as manufactured by EFCO consisting of 
(      ) exterior, (      ) air spacer, and (      ) interior.
2.	Large Missile Impact
a.	Monolithic level “D” glazing – Maximum +75/-75 D.P.
Nominal 9/16” laminated glass made of 1/4” (color) heat strengthened exterior, .075” (color) Vanceva interlayer, 1/4" (color) heat strengthened interior.

		OR

b.	Monolithic level “D” glazing – Maximum +160/-160 D.P.
Nominal 5/8” laminated (HRG2) made of 1/4" (color) heat strengthened exterior, .050" Urethane, .080” Polycarbonate, .050” Urethane, 1/4" (color) heat strengthened interior.

		OR

c.	Insulated level “D” glazing – Maximum +75/-75 D.P.
Nominal 1 1/16” insulated unit of 1/4" (color) heat strengthened exterior, 5/16” air space, 5/8” laminated glass made of 1/4" (color) heat strengthened exterior, .075” Vanceva interlayer, 1/4" (color) heat strengthened interior.

		OR

d.	Insulated level “D” glazing – Maximum +160/-160 D.P.
Nominal 1 1/8” insulated unit of 1/4" (color) heat strengthened exterior, 1/4” air space, 5/8” laminated glass (HRG2) made of 1/4" (color) heat strengthened exterior, .050” Urethane, .080” Polycarbonate, .050” Urethane, 1/4" (color) heat strengthened interior.

C.	Thermal Barrier
1.	All exterior aluminum shall be separated from interior aluminum by a rigid, structural thermal barrier.  For purposes of this specification, a structural thermal barrier is defined as a system that shall transfer shear during bending and, therefore, promote composite action between the exterior and interior extrusions.
2.	The thermal barrier shall be thermal struts, consisting of glass reinforced polyamide nylon, mechanically crimped in raceways extruded in the exterior and interior extrusions.
3.	Poured and debridged urethane thermal barriers shall not be permitted.

2.02	Fabrication 

A.	General
1.	All aluminum frame and vent extrusions shall have a minimum wall thickness of .125” (3 mm).
2.	Depth of frame and vents shall not be less than 3 1/2” (89 mm).

B.	Frame 
1.	Frame components shall be mortise and tenon.  Other means of mechanically fastening, i.e. screws shall not be permitted

C.	Glazing 
1.	All non-impact or small missile impact (level A) units shall be glazed with the manufacturer's standard sealant process provided the glass is held in place by a removable, extruded aluminum, glazing bead.  The glazing bead must be isolated from the glazing material by a gasket.
2.	All large missile impact (of any level) units shall be glazed with the manufacturer’s structural sealant process provided the glass is held in place by a screw applied extruded aluminum glazing stop.  The glazing stop must be isolated from the glazing material by a gasket and the fasteners must be hidden by a snap on aluminum cover.
3.	All units shall be glazed with a minimum of 1” glass bite.

NOTE: Series 811I windows have dual finish capability. The specifier can choose separate finish types and colors for interior and exterior.

NOTE: Geographic Location and Color Selection determine Chemistry Formulation. Not all Colors are available in every Chemistry. Please consult with manufacturer prior to specification to ensure efficacy of proposed finish. 

2.03	Finishes
1.	Anodic 
a. 	Finish all exposed areas of aluminum windows and components with electrolytically- deposited color in accordance with Aluminum Association Designation.

2.   Organic 
a.	Liquid Fluoropolymer Aluminum Extrusion Coatings, AAMA 2605-20:  Minimum 70 percent PVDF resin by weight, in color coat [and clear topcoat, if required]. Color as selected from one of the following:
I.	EFCO Ultrapon Color Card
II.	Sherwin-Williams Coil Coatings Fluropon Color Card – [Fluropon] [Fluropon Classic] [Fluropon Classic II] [Fluropon Premiere] 
III.	Sherwin-Williams Coil Coatings Metal Trends Color Card - Sherwin-Williams Coil Coatings Fluropon Color Card – [Fluropon] [Fluropon Classic] [Fluropon Classic II] [Fluropon Premiere] 

PART 3 EXECUTION 

3.01	Inspection 

A.	Job Conditions 
1.	Verify that openings are dimensionally within allowable tolerances, plumb, level, clean, provide a solid anchoring surface, and are in accordance with approved shop drawings. 

NOTE: Insert at discretion of specifier

2.	Provide for manufacturer representation to conduct pre-installation site meeting.

3.02	Installation 

A.	Use only skilled tradesmen with work done in accordance with approved shop drawings and specifications.

B.	Plumb and align window faces in a single plane for each wall plane, and erect windows and materials square and true.  Adequately anchor to maintain positions permanently when subjected to normal thermal movement, specified building movement, and specified wind loads.

C.	Furnish and apply sealants to provide a weather tight installation at all joints and intersections and at opening perimeters.  Wipe off excess material and leave all exposed surfaces and joints clean and smooth.

3.03	Anchorage

A.	Adequately anchor to maintain positions permanently when subjected to normal thermal movement, specified building movement, and specified wind loads.  For perimeter anchor type and spacing, refer to the approved shop drawings or consult the project design professional.

3.04	Protection and Cleaning 

A.	After completion of window installation, windows shall be inspected, adjusted, put into working order and left clean, free of labels, dirt, etc.  Protection from this point shall be the responsibility of the general contractor.
B.	A bi-annual sweet water rinse is recommended to prohibit dirt, dust, and debris from accumulation on the surface of the coating and to help maintain the aesthetic of the coating.

EFCO is a registered trademark of EFCO Corporation. Ultrapon is a trademark of EFCO Corporation.