SECTION 08511

ROLLED STEEL WINDOWS

PART 1 GENERAL

SECTION INCLUDES

Hot-rolled [primed] [pre-finished] steel windows with [fixed] [and] [operating] sash; site glazed [including infill panels].

Operating hardware and framed insect screens.

[Perimeter sealant.]

PRODUCTS FURNISHED BUT NOT INSTALLED UNDER THIS SECTION

Section [_____-__________]: Placement of supporting anchors.

PRODUCTS INSTALLED BUT NOT FURNISHED UNDER THIS SECTION

Section [_____-__________]: Supply of [supporting anchors] [________________] for placement by this section.

RELATED SECTIONS

Section [______-____________]: Preparation of adjacent work to receive work of this section.

Section 05500 - Metal Fabrications: Steel lintels.

Section 07190 - Vapor and Air Barriers: Perimeter vapor and air seal between window frame and adjacent construction.

[Section 07900 - Sealants: Perimeter sealant and back-up materials.]

Section 08512 - Sheet Steel Windows.

Section 08520 - Aluminum Windows.

Section 08610 - Wood Windows.

Section 08631 - Tubular Plastic Windows.

Section 08800 - Glazing.

[Section 09900 - Painting:	Field painting.]

REFERENCES

ASTM A386 - Zinc Coating (Hot Dip) on Assembled Steel Products.

ASTM E283 - Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors.

ASTM E330 - Structural Performance of Exterior Windows, Curtain Walls, and Doors by Uniform Static Air Pressure Difference.

ASTM E331 - Test Method for Water Penetration of Exterior Windows, Curtain Walls, and Doors by Uniform Static Air Pressure Difference.

ASTM A525 - General Requirements for Steel Sheet, Zinc Coated (Galvanized) by the Hot Dip Process.

FS L-S-125 - Screening, Insect, Nonmetallic.

FS RR-W-365 - Wire Fabric (Insect Screening).

SSPC - Steel Structures Painting Manual.

SWI - The Steel Window Institute.

SYSTEM DESCRIPTION

Windows:	Hot rolled steel sections, shop fabricated, factory [pre-finished] [primed], vision glass, [infill panels,] related flashings, anchorage and attachment devices.

****** [OR] ******

Windows:	SWI [Standard Intermediate], [Heavy Intermediate] [Heavy Custom] design.

Sash Configuration: [Fixed, non-operable] [and] [projected awning in] [projected awning out] [casement] [pivoted horizontally] [pivoted vertically] [________] lights.

PERFORMANCE REQUIREMENTS

Design and size components to withstand dead and live loads caused by positive and negative wind pressure acting normal to plane of wall [as calculated in accordance with [____] code] [to a design pressure of [____] lb/sq ft ([____] KPa) and a suction of [____] lb/sq ft ([____] KPa)] [and] [as measured in accordance with ANSI/ASTM E330].

Limit member deflection to [flexure limit of glass] [1/200] [________]; with full recovery of glazing materials.

Limit air infiltration through assembly to [0.5] [____] cfm/min/sq ft ([0.002] [____] cu m/s/sq m) of wall area, measured at a reference differential pressure across assembly of [1.57] [____] psf ([75] [____] Pa) as measured in accordance with [ASTM E283] [________].

Vapor Seal with Interior Atmospheric Pressure of 1 inch (25 mm) sp, 72 degrees F (22 degrees C), 40 Percent RH: No failure.

****** [OR] ******

Water Leakage: None, when measured in accordance with [ASTM E331] [________] with a test pressure difference of [2.86] [____] lbf/sq ft ([136.85] [____] N/sq m).

Drain water entering joints, condensation occurring in glazing channels, or migrating moisture occurring within system, to the exterior by a weep drainage network.

SUBMITTALS

Submit under provisions of Section [01300.] [________.]

Shop Drawings: Indicate opening dimensions, framed opening tolerances, affected related work; installation requirements; and [________].

Product Data: Provide component dimensions, anchorage and fasteners, glass and [________].

Submit [two] [_______] samples [____x____] inches ([____x____] mm) in size illustrating window frame section [mullion section,] [screen and frame,] [finish surfaces,] [infill panels,] [glass,] [glazing materials].

Manufacturer's Certificate: Certify that [products] [________] meet or exceed [specified requirements] [___________________].

QUALIFICATIONS

Manufacturer [and Installer]: Company specializing in manufacturing [industrial] [commercial] windows with minimum [three] [_______] years [documented] experience.

DELIVERY, STORAGE, AND HANDLING

Deliver, store, protect and handle products to site under provisions of Section [01600.] [________.]

Protect pre-finished surfaces with [wrapping] [stripable coating]. Do not use adhesive papers or sprayed coatings which bond when exposed to sunlight or weather.

ENVIRONMENTAL REQUIREMENTS

Do not install sealants when ambient temperature is less than [40] [____] degrees F ([5] [____] degrees C).

Maintain this minimum temperature during and after installation of sealants.

FIELD MEASUREMENTS

Verify that field measurements are as indicated on [shop drawings] [Drawings].

****** [OR] ******

Verify that field measurements are as instructed by the manufacturer.

PART 2 PRODUCTS

MANUFACTURERS

[__________________________________] Product [_________].

Other acceptable manufacturers offering equivalent Products.

[______________________________] Product [_________].

[______________________________] Product [_________].

[______________________________] Product [_________].

Substitutions: Under provisions of Section [01600] [________].

MATERIALS

Steel: Hot roll formed sash sections, [3] [3.5] [4.2] [____] lb/lin ft ([0.4] [0.5] [0.6] [____] kg/lin m) [galvanized to [1.25] [______] oz/sq ft ([380] [____] g/sq m) in accordance with ASTM A386] [prime painted]; [with slot for fitting weather stripping integral with sash section].

Fasteners:	[Stainless] [Galvanized] steel.

Shop and Touch-Up Primer for Steel Components: [SSPC 15, Type 1, red oxide] [________].

Touch-Up Primer for Galvanized Steel Surfaces: [SSPS 20, zinc rich type] [________].

COMPONENTS

Frames: [____] inch ([____] mm) wide x [____] inch ([____] mm) deep profile, non-thermally broken; [flush] [applied] glass stops of [snap-on] [screw fastened] type.

Reinforced Mullion: [____] inch ([____] mm) wide x [____] inch ([____] mm) deep profile, [____] inch ([____] mm) thick, of shaped steel structural section.

Sills: [____] inch ([____] mm) thick, [formed steel] [extruded aluminum]; sloped for positive wash; fit under sash [leg] [________] to [1/2] [____] inch ([12] [____] mm) beyond wall face; one piece full width of opening [jamb angles to terminate sill end].

Infill Panel: Internally reinforced, glazing edge [sealed] [unsealed] permitting internal air movement to glazing space, outside air barrier line:

Panel Sheet:	[____] inch ([____] mm) thick [aluminum] [________].

****** [OR] ******

Outer Face: [____] inch ([____] mm) thick [aluminum] [________].

Core: [Glass fiber] [Rigid polystyrene] [Rigid polyurethane] [________] insulation core with R value of [____] (RSI of [____])

Inner Face: [____] inch ([____] mm) thick [aluminum] [________].

Insect Screens: [FS RR-W-365, woven [copper] [aluminum] [________] mesh] [FS L-S-125, woven plastic mesh]; [14/18] [____] mesh size.

Operable Sash Weather Stripping:	[Wool pile] [Nylon pile] [Resilient PVC] [________]; permanently resilient, profiled to effect weather seal.

Fasteners:	[Stainless] [Galvanized] steel.

GLASS AND GLAZING MATERIALS

Glass and Glazing Materials:	As specified in Section 08800 of Types described below:

Glass in Exterior Lights: Type [________].

[Glass Infill Panels: Type [________].]

SEALANT MATERIALS

Sealant and Backing Materials: As specified in Section 07900 of Types described below.

Perimeter Sealant:	Type [________].

Sealant Used Within System (Not Used for Glazing): Type [________].

HARDWARE

Sash lock: [Lever handle with cam lock] [________]. [Provide [____] feet ([____] mm) long pole handle.]

****** [OR] ******

Operator: [Lever action handle] [Geared rotary handle] fitted to projecting sash arms with limit stops.

Projecting Sash Arms: [Cadmium] [Zinc] plated steel, friction pivot joints with nylon bearings, removable pivot clips for cleaning.

FABRICATION

Fabricate components with minimum clearances and shim spacing around perimeter of assembly, yet enabling installation and dynamic movement of perimeter seal.

Accurately fit and secure joints and corners. Make joints flush and hairline.

Prepare components to receive anchor devices. Fabricate anchors.

Arrange fasteners to conceal from view.

Prepare components with reinforcement for operating hardware.

Provide internal reinforcement in mullions with [galvanized] [prime painted] steel members to maintain rigidity.

Permit internal drainage weep holes and channels to migrate moisture to exterior. Provide internal drainage of glazing spaces to exterior through weep holes.

Assemble insect screens of rolled [aluminum] [steel] rectangular [tubular] sections. Miter and reinforced frame corners. Fit mesh taut into frame into frame and secure. Fit frame with [[four] [______] spring loaded steel pin] [________] retainers.

[Double] weatherstrip operable units.

FINISHES

Window Frame Surface: [Galvanized] [Prime painted], [baked enamel] [baked acrylic] [PVC] [Urethane] [________] finish.

Screens: [Black] [________] color.

Operator: Enameled to [________] color [as selected].

Concealed Steel Items: [Galvanized in accordance with ASTM A386 to [2.0] [____] oz/sq ft ([610 [____] gm/sq m)] [Primed with iron oxide paint].

Apply [one coat] [[____] coats] of bituminous paint to concealed aluminum [and steel] surfaces in contact with cementitious or dissimilar materials.

PART 3 EXECUTION

EXAMINATION

Verify site opening conditions under provisions of Section [01039.] [________.]

Verify wall openings and adjoining materials are ready to receive work of this Section.

INSTALLATION

Install window frames [and glass and glazing] in accordance with manufacturers instructions.

Attach window frame and shims to perimeter opening to accommodate construction tolerances and other irregularities.

Align window plumb and level, free of warp or twist. Maintain dimensional tolerances, [aligning with adjacent work].

Install sill [and sill end angles].

Provide thermal isolation where components penetrate or disrupt building insulation. Pack fibrous insulation in shim spaces at perimeter of assembly to maintain continuity of thermal barrier.

Coordinate attachment and seal of perimeter air and vapor barrier materials.

Install operating hardware.

Install glass [and infill panels] in accordance with Section 08800, to [glazing method required to achieve performance criteria] [exterior [wet/dry] [________] method of glazing].

Install perimeter sealant [to method required to achieve performance criteria] [Type [____], backing materials, and installation criteria in accordance with Section 07900].

TOLERANCES

Maximum Variation from Level or Plumb: [0.06] [____] inches every 3 ft ([1.5] [____] mm/m) non-cumulative or [1/16] [____] inches per 10 ft ([1.5] [____] mm/3 m), whichever is less.

ADJUSTING

Adjust work under provisions of Section [01700.] [________.]

Adjust hardware for smooth operation.

CLEANING

Clean work under provisions of [01700.] [________.]

Remove protective material from pre-finished surfaces.

Wash down surfaces with a solution of mild detergent in warm water, applied with soft, clean wiping cloths. Take care to remove dirt from corners. Wipe surfaces clean.

Remove excess sealant by method acceptable to sealant manufacturer.

SCHEDULES

West Elevation (Opening No. W2):	Dark Bronze urethane finish; 36 x 60 inch nominal size; bronze tint glass.

Other Elevations (Opening No. W3, W4 and W5): White enamel finish; 42 x 42 inch nominal size; clear glass.

END OF SECTION