Pella Corporation	MARCH 2021
102 Main Street
Pella, Iowa  50219
Toll Free	(800) 54-PELLA
Phone		(641) 621-1000
Website	www.pella.com

	Product Guide Specification

Specifier Notes:  This product guide specification is written according to the Construction Specifications Institute (CSI) 3-Part Format, including MasterFormat, SectionFormat, and PageFormat, as described in The Project Resource Manual—CSI Manual of Practice.

The section must be carefully reviewed and edited by the Architect to meet the requirements of the project and local building code.  Coordinate this section with other specification sections and the Drawings.  Delete all “Specifier Notes” when editing this section.

Section numbers are from MasterFormat 2011 update.	

	SECTION 08 52 13

	ALUMINUM-CLAD WOOD CIRCLEHEAD WINDOWS
WITH IMPACT-RESISTANT GLAZING

Specifier Notes:  This section covers Pella® Architect Series® aluminum-clad wood circlehead windows with HurricaneShield® impact-resistant glazing.  Consult your local Pella representative for assistance in editing this section for the specific application.	

PART 1	GENERAL

1.1	SECTION INCLUDES

A.	Aluminum-clad wood circlehead windows.

1.2	RELATED SECTIONS

Specifier Notes:  Edit the following list of related sections as required for the project.  List other sections with work directly related to this section.  Verify section numbers and titles.	

A.	Section 07270 (07 27 00) - Air Barriers:  Water-resistant barrier.

B.	Section 07920 (07 92 00) - Joint Sealants:  Sealants and caulking.

1.3	REFERENCES

Specifier Notes:  List standards referenced in this section, complete with designations and titles.  This article does not require compliance with standards, but is merely a listing of those used.	

A.	American Architectural Manufacturers Association (AAMA):
1.	AAMA 502 - Voluntary Specification for Field Testing of Windows and Sliding Doors.
2.	AAMA 2604 - Voluntary Specification, Performance Requirements and Test Procedures for Pigmented Organic Coatings on Aluminum Extrusions and Panels.
3.	AAMA 2605 - Voluntary Specification, Performance Requirements and Test Procedures for Superior Performing Organic Coatings on Aluminum Extrusions and Panels.
4.	AAMA 612 Voluntary Specification, Performance Requirements, and Test Procedures for Combined Coatings of Anodic Oxide and Transparent Organic Coatings on Architectural Aluminum.

B.	American Society for Testing and Materials (ASTM):
1.	ASTM B 117 - Operating Salt Spray (Fog) Apparatus.
2.	ASTM C 1036 - Flat Glass.
3.	ASTM C 1048 - Heat-Treated Flat Glass – Kind HS, Kind FT Coated and Uncoated Glass.
4.	ASTM D 1149 - Rubber Deterioration – Surface Ozone Cracking in a Chamber.
5.	ASTM D 2803 - Filiform Corrosion Resistance of Organic Coatings on Metal.
6.	ASTM D 4060 - Abrasion Resistance of Organic Coatings by the Taber Abraser.
7.	ASTM E 283 - Rate of Air Leakage Through Exterior Windows, Curtain Walls and Doors Under Specified Pressure Difference Across the Specimen.
8.	ASTM E 330 - Structural Performance of Exterior Windows, Curtain Walls and Doors by Uniform Static Air Pressure Difference.
9.	ASTM E 547 - Water Penetration of Exterior Windows, Curtain Walls and Doors by Cyclic Static Air Pressure Differential.
10.	ASTM E 1105 –  Standard Test Method for Field Determination of Water Penetration of Exterior Windows, Doors, Skylights and Curtain Walls by Uniform Static Air Pressure Difference.
11.	ASTM E 1886 - Performance of Exterior Windows, Curtain Walls, Doors, and Impact Protective Systems Impacted by Missile(s) and Exposed to Cyclic Pressure Differentials.
12.	ASTM E 1996 - Performance of Exterior Windows, Curtain Walls, Doors and Impact Protective Systems Impacted by Windborne Debris in Hurricanes.
13.	ASTM G 85 - Modified Salt Spray (Fog) Testing.

C.	Window and Door Manufacturers Association (WDMA):
1.	AAMA/WDMA/CSA 101/I.S.2/A440 – North American Fenestration Standard/Specification for windows, doors and skylights
2.	WDMA I.S.4 - Industry Specification for Preservative Treatment for Millwork.

1.4	PERFORMANCE REQUIREMENTS

Specifier Notes:  Performance ratings for Pella windows vary by product and size.  Current performance information is found in the Pella Architectural Design Manual at www.pellaadm.com on the Design Data pages of each product section.  Consult your local Pella representative for more information.	

A.	Windows shall be Hallmark certified to a rating of FW-CW-PG[ ____ ] specifications in accordance with ANSI/AAMA/WDMA 101/I.S.2/A440-08 or ANSI/AAMA/WDMA 101/I.S.2/A440-11.

B.	Window Unit Air Leakage, ASTM E 283, 1.57 psf (25 mph):  0.05 cfm per square foot of frame or less..

C.	Window Unit Water Penetration:  No water penetration through window unit when tested in accordance with ASTM E 547, under static pressure of 9.0 psf (59 mph) after 4 cycles of 5 minutes each, with water being applied at a rate of 5 gallons per hour per square foot.

D.	Windborne Debris Resistance:  Provide glazed windows capable of resisting impact from windborne debris, based on pass/fail criteria as determined from testing glazed windows identical to those specified, according to ASTM E 1886 and testing information in ASTM E 1996, and requirements of authorities having jurisdiction.

1.5	SUBMITTALS

A.	Comply with Division 1 requirements.

B.	Product Data:  Submit manufacturer's product data, including installation instructions.

Specifier Notes:  Delete the following sentence if shop drawings are not required.	

C.	Shop Drawings:  Submit manufacturer's shop drawings, indicating dimensions, construction, component connections and locations, anchorage methods and locations, hardware locations, and installation details.

Specifier Notes:  Delete the following sentence if samples are not required.	

D.	Samples:  Submit full-size or partial full-size sample of window illustrating glazing system, quality of construction, and color of finish.

E.	Warranty:  Submit manufacturer’s standard warranty.

1.6	QUALITY ASSURANCE

Specifier Notes:  Edit the following paragraph as required for inclusion of field testing.	

A.	Mockup:
1.	Provide sample installation for field testing window performance requirements and to determine acceptability of window installation methods.
2.	Approved mockup shall represent minimum quality required for the Work.

Specifier Notes:  Edit the following sentence as required for inclusion of the mockup.	

3.	Approved mockup shall [not] remain in place within the Work.

1.7	DELIVERY, STORAGE, AND HANDLING

A.	Delivery:  Deliver materials to site undamaged in manufacturer's or sales branch's original, unopened containers and packaging, with labels clearly identifying manufacturer and product name.  Include installation instructions.

B.	Storage:  Store materials in an upright position, off ground, under cover, and protected from weather, direct sunlight, and construction activities.

C.	Handling:  Protect materials and finish during handling and installation to prevent damage.

PART 2	PRODUCTS

2.1	MANUFACTURER

A.	Pella Corporation, 102 Main Street, Pella, Iowa 50219.  Toll Free (800) 54-PELLA.  Phone (641) 621-1000.  Website www.pella.com.

2.2	ALUMINUM-CLAD WOOD CIRCLEHEAD WINDOWS

A.	Aluminum-Clad Wood Circlehead Windows.

B.	Frame (Sill):
1.	Select softwood, water-repellent, preservative-treated with EnduraGuard® in accordance with WDMA I.S.-4. EnduraGuard includes water-repellency, three active fungicides and an insecticide applied to the frame.
2.	Interior Exposed Surfaces: [Clear Pine] [Mahogany]  [Douglas Fir] with no visible fastener holes.
3.	Exterior Surfaces:  Clad with aluminum.
4.	Sill Assembly:  Mitered at ends where joined to curved head member.
5.	Overall Frame Depth:  5 inches (127 mm).

C.	Frame (Curved Head Member):
1.	Select softwood, water water-repellent, preservative-treated with EnduraGuard in accordance with WDMA I.S.-4. EnduraGuard includes water-repellency, three active fungicides and an insecticide applied to the frame.
2.	Solid-wood-core blocks bonded with water-resistant glue to stabilized cellulose fiber.
3.	Two sheets laminated with veneers at interior.
4.	Interior Exposed Surfaces: [Clear Pine] [Mahogany]  [Douglas Fir] with no visible fastener holes.
5.	Exterior Surfaces:  Clad with aluminum.
6.	Curved Head Assembly:  Mitered at ends where joined to sill, screwed and sealed.
7.	Overall Frame Depth:  5 inches (127 mm).

2.3	GLAZING

Specifier Notes:  Tempered glass is optional, delete if not required.	

A.	Glazing:
1.	Float Glass:  ASTM C 1036, Quality 1.
	a.	Tempered Glass:  ASTM C 1048.

Specifier Notes:  Specify glazing type. Consult your local Pella representative for more information.	

2.	Type:  Urethane-glazed, 1-1/4-inch SGP [annealed]  [heat strengthened] dual-seal impact-resistant insulating glass. Laminated exterior light is [clear]  [bronze]  [gray]  [green]. Interior tempered light is [clear]  [multi-layer Low-E coated].
3.	Type:  Urethane-glazed, 9/16-inch SGP laminated glass [hard coat Low-E]  [bronze]  [gray]  [green].
4.	Type:  Urethane-glazed 1-inch PVB laminated glass [clear]  [hard coat Low-E]  [bronze]  [gray]  [green].

Specifier Notes:  Delete Integral Light Technology® glazing and grilles if not required.  Consult your local Pella representative for more information.	

5.	Integral Light Technology Glazing and Grilles:
a.	Insulating glass contains non-glare grille grid between 2 panes of glass.

Specifier Notes:  Specify size of room side grilles.	

b.	Room Side Grilles:  Solid [7/8-inch]  [1-1/4-inch] wide ogee profile that are solid [Clear Pine]  [Mahogany]  [Douglas Fir]. Curved bars may have visible finger joints.
c.	Exterior Grilles:  Extruded aluminum.  Dimension to match room side grilles.
d.	Bars shall be adhered to both sides of insulating glass with VHB acrylic adhesive tape and aligned with non-glare grid.
e.	Finish:  Exterior surfaces finished to match door cladding; interior surfaces to match window frame finish.

2.4	OPTIONS

Specifier Notes:  The following paragraphs specify optional products sold separately.  Specify required options.  Consult your local Pella representative for more information.	

A.	Interior Removable Grilles (for windows without integral grilles):

Specifier Notes:  Specify profile.  Hub is optional.  Delete if not required.	

1.	Profile:  [3/4 inch]  [1-1/4-inch Colonial].  Removable, solid wood bars [and hub], steel-pinned at joints and fitted to interior glass stops with steel clips and tacks.
2.	Finish: [Unfinished, ready for site finishing] [Factory finished to match interior and exterior color].

Specifier Notes:  Consult your local Pella representative for more information.  Contact your local Pella representative for the current exterior color options. Tan and Brown Interior GBG colors are available in single-tone (Brown/Brown or Tan/Tan). Other interior colors are also available with tan or brown exterior.	

B.	Grilles-Between-the-Glass (for windows without integral grilles):
1.	Profile:  3/4 inch.
2.	Contoured aluminum grilles installed between 2 panes of the sealed insulating glass.
3.	Interior Grille Color:  is [White] [Tan] [Brown] [Putty] [Ivory] [Black] [Morning Sky Gray] [Sand Dune] [Brickstone] [Harvest] [Cordovan]. 
4.	Exterior color: _______________.

2.5	TOLERANCES

A.	Windows shall accommodate the following opening tolerances:
1.	Vertical Dimensions Between High and Low Points:  Plus 1/4 inch, minus 0 inch.
2.	Width Dimensions:  Plus 1/4 inch, minus 0 inch.
3.	Building Columns or Masonry Openings:  Plus or minus 1/4 inch from plumb.

2.6	FINISH 

Specifier Notes:  AAMA 2603, 2604 and 2605 are the most commonly referenced exterior finish quality standards for painted aluminum. Pella aluminum-clad products are offered with two quality levels of paint finish, EnduraClad and EnduraClad Plus. Pella EnduraClad finish meets or exceeds all AAMA 2604 requirements, which possesses the distinguishing characteristic of an elevated resistance to abrasion and corrosion. Pella EnduraClad Plus meets or exceeds all AAMA 2605 requirements, which possesses the distinguishing characteristic of an elevated resistance to fade. This quality makes EnduraClad Plus an excellent choice for deeper more fade-prone color selections in areas of high UV exposure.

Pella® EnduraClad® and EnduraClad Plus exterior finish systems are also tested to the following ASTM G 85 test method.  Consult your local Pella representative for warranty options for seacoast applications.

Standard and custom colors are available.  Consult your local Pella representative for more information.

Specify one of the following three exterior finish systems  

Specify finish color.	

A.	Exterior Finish System:  Pella EnduraClad.
1.	Exterior aluminum surfaces shall be finished with the following multi-stage system:
a.	Clean and etch aluminum surface of oxides.
b.	Pre-treat with conversion coating.
c.	Top coat with baked-on polyester enamel.
2.	Color:  _______________.
3.	Performance Requirements:  Exterior aluminum finishes shall meet or exceed all performance requirements of AAMA 2604 and the following performance requirements of AAMA 2605:
a.	Dry Film Hardness:  Eagle Turquoise Pencil, H minimum.
b.	Film Adhesion:  1 mm crosshatch, dry, wet, boiling water.
c.	Impact Resistance:  1/10-inch distortion, no film removal.
d.	Chemical Resistance:  10 percent Muriatic acid, 15 minutes.  Mortar pat test, 24 hours.
e.	Detergent Resistance:  3 percent at 100 degrees F, 72 hours.
f.	Corrosion Resistance: ASTM G85-A5, 2000 hours.  Humidity, 3,000 hours.  Salt spray exceeds 3,000 hours.

B.	Exterior Finish System:  Pella EnduraClad Plus.
1.	Exterior aluminum surfaces shall be finished with the following multi-stage system:
a.	Clean and etch aluminum surface of oxides.
b.	Pre-treat with chrome phosphate conversion coating.
c.	Pre-treat with chromic acid sealer/rinse.
d.	Top coat with baked-on 70% fluoropolymer-based enamel.
2.	Color:  _______________.
3.	Performance Requirements:  Exterior aluminum finishes shall meet or exceed all performance requirements of AAMA 2605.

C.	Exterior Finish System: Pella Anodized Aluminum
1.	Exterior aluminum surfaces shall be finished with the following multi-stage system:
a.	Clean and etch aluminum surface of oxides.
b.	Pre-treat with chrome phosphate conversion coating.
c.	All exposed surfaces should receive an architectural anodized finish in conformance with Aluminum Association Standard AAMA 611 and AAMA 612.
2.	Color:  _______________.

Specifier Notes:  Specify interior finish.  Windows are normally furnished with interior unfinished, ready for site finishing.  Factory-applied finish is available at extra cost.  Factory finished paint or stain is available for pine interiors only. Consult your local Pella representative for stain color options.	

D.	Interior Finish:  [Unfinished, ready for site finishing]  [Factory-primed with 1 coat acrylic latex]  [Factory finished with 1 prime coat and 1 top coat of [White] [Linen White] [Bright White] [Artisan Greige] acrylic latex] [Factory finished stain Color: _____________ ].

2.7	INSTALLATION ACCESSORIES

A.	Flashing/Sealant Tape:  Pella SmartFlash.
1.	Aluminum-foil-backed butyl window and door flashing tape.
2.	Maximum Total Thickness:  0.013 inch.
3.	UV resistant.
4.	Verify sealant compatibility with sealant manufacturer.

	B.	Interior Insulating-Foam Sealant:  Low-expansion, low-pressure polyurethane insulating window and door foam sealant.

C.	Exterior Perimeter Sealant: “Pella Window and Door Installation Sealant” or equivalent high quality, multi-purpose sealant as specified in the joints sealant section.

PART 3	EXECUTION

3.1	EXAMINATION

A.	Examine areas to receive windows.  Notify Architect of conditions that would adversely affect installation or subsequent use.  Do not proceed with installation until unsatisfactory conditions are corrected.

3.2	INSTALLATION

A.	Install windows in accordance with manufacturer's instructions and approved shop drawings.

B.	Install windows to be weather-tight.

C.	Maintain alignment with adjacent work.

D.	Secure assembly to framed openings, plumb and square, without distortion.

E.	Integrate window system installation with exterior water-resistant barrier using flashing/sealant tape.  Apply and integrate flashing/sealant tape with water-resistant barrier using watershed principles in accordance with window manufacturer's instructions.

F.	Place interior seal around window perimeter to maintain continuity of building thermal and air barrier using [backer rod and sealant]  [insulating-foam sealant].

G.	Seal window to exterior wall cladding with sealant and related backing materials at perimeter of assembly.

3.3	FIELD QUALITY CONTROL

Specifier Notes:  Field testing is optional.  Delete Field Quality Control if field testing is not required.  If Field Quality Control is deleted, delete AAMA 502 and ASTM E1105 from Article 1.3 References in this section.	

A.	Field Testing: Field water testing shall be conducted in accordance with ASTM E1105 Test Procedure B. The test pressure shall be based on the maximum positive components and cladding design pressure. Utilizing the AAMA 502 field test reduction, the water test pressure is 10% of the maximum positive design pressure.

3.4	CLEANING

A.	Clean window frames and glass in accordance with Division 1 requirements.

B.	Do not use harsh cleaning materials or methods that would damage finish.

C.	Remove labels and visible markings.

3.5	PROTECTION

A.	Protect installed windows to ensure that, except for normal weathering, windows will be without damage or deterioration at time of substantial completion.

END OF SECTION