Bovard Studio Inc.Section 08521
Digicon Information Inc.ALUMINUM FRAME FOR STAINED GLASS WINDOW
Sept 20, 2003Page 1
This section includes factory finished extruded aluminum window frame intended for Bovard Studios new or restored stained glass and glazing. Frame is for fixed and operating sash and perimeter seal. Stained glass is referenced to Sections 08585 and 08595. Glazing is referenced to Section 08800. Perimeter sealants are referenced to Section 07900. Air barrier and vapor retarder continuity from aluminum frame to adjacent construction is critical to successful building air tightness; specify compatible materials in conjunction with Sections 07260 and 07270. Ventilation of the air space between the stained glass pane and the protective covering is critical to avoid heat build-up and seasonal condensation. This section includes performance, proprietary, and descriptive type specifications. Edit to avoid conflicting requirements.
NOTE: Your suggestions for future revisions to these master specifications are appreciated - please e-mail comments to Ron Bovard at
PART 1GENERAL
1.1SECTION INCLUDES
.1Extruded aluminum window frame for stained glass window unit, with:
.1[exterior protective of [[glass] [plastic] pane,] [sealed glass unit],]
.2the stained glass pane,
.3[an inner clear glass pane,]
.4each to protect and preserve the whole assembly including the stained glass lite.
.2[Shop] [Site] glaze window assemblies.
.3Perimeter sealant.
1.2RELATED SECTIONS
This article is for identifying other components or materials that directly relate to this section - and for work which depends upon this section. Delete those paragraphs that do not apply.
.1Section [______-______]: Preparation of adjacent work to receive work of this section.
.2Section 05500 - Metal Fabrications: Steel lintels.
.3Section 06112 - Framing and Sheathing: Wood framed openings.
.4Section 06114 - Wood Blocking and Curbing: Wood perimeter shims.
.5Section 06441 - Wood Light Box for Stained Glass.
.6Section 07260 - Vapor Retarders: Perimeter vapor seal between window frame and adjacent construction.
.7Section 07270 - Air Barriers: Perimeter air seal between window frame and adjacent construction.
.8Section 07900 - Joint Sealers: Perimeter sealant and back-up materials.
.9Section 08522 - Exterior Protective Glazing (Sull Sash) for Stained Glass Window.
.10Section 08555 - Wood Frame for Stained Glass Window.
.11Section 08585 - Stained Glass Windows.
.12Section 08595 - Stained Glass Restoration.
.13Section 08800 - Glazing.
1.3DEFINITIONS
.1Exterior Protective Glazing: A exterior lite of glass or plastic in a wood or metal frame, to protect and preserve a separate stained glass lite assembly.
1.4REFERENCES
List reference standards that are included within the text of this section. Edit the following as required for project conditions.
.1AA (Aluminum Association) - Designation System for Aluminum Finishes.
.2AAMA 101 - Aluminum and Vinyl (PVC) and Wood Windows and Glass Doors.
.3ASTM A123/A123M - Standard Specification for Zinc (HotDip Galvanized) Coatings on Iron and Steel Products.
.4ASTM B221/B221M Aluminum and AluminumAlloy Extruded Bars, Rods, Wire, Profiles, and Tubes.
.5ASTM C1036 Flat Glass.
.6ASTM C1048 HeatTreated Flat Glass Kind HS, Kind FT Coated and Uncoated Glass.
.7ASTM C1172 Laminated Architectural Flat Glass.
.8ASTM E283-91(1999) - Standard Test Method for Determining the Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors Under Specified Pressure Differences Across the Specimen.
.9IBC (International Building Code).
.10LSGA (Laminators Safety Glass Association) Standards Manual.
.11SGAA (Stained Glass Association of America) - Reference and Technical Manual.
.12SIGMA (Sealed Insulated Glass Manufacturers Association) - Quality Standard Specification.
1.5SYSTEM DESCRIPTION
Use this article carefully; restrict statements to describe the combined result of the components used to assemble the system. Do not repeat statements made in the Section Includes article. Select one or both of the following subparagraphs.
.1Window Frame:
.1Single thickness aluminum section for framing outer protective covering.
.2Aluminum frame, [thermally broken,] for:
.1[outer unit of [glass] [plastic] pane,] [outer insulated sealed unit of two glass panes.]
.2[stained glass lite,]
.3[inner glass pane,]
.3Factory fabricated, factory finished.
.4Related flashings, anchorage and attachment devices.
.2Configuration: [Fixed, non-operable.] [Operable sash with insect screen.]
1.6PERFORMANCE REQUIREMENTS
Use this article carefully; restrict statements to identify system performance requirements or function criteria only. Many proprietary window products are marketed without performance data in their literature and therefore may not have been tested for performance characteristics. Consider the potential costs of requiring the following criteria. The following paragraphs represent a suggested listing of performance criteria. If more stringent criteria is being considered, refer to AAMA and ASTM test methods and associated documents for guidance.
.1IBC Requirements for Window Assembly and Component Parts: Wind loads, structural member deflection, and hurricane zone and wind generated missile criteria.
.2Window Assembly Design:
.1Design and size components to withstand dead loads and live loads caused by positive and negative wind loads acting normal to plane of wall as calculated in accordance with code.
The placement of the vents relative to the location of the air barrier and vapor retarder is critical; consult with Bovard Studios for technical assistance in this regard.
.2Design vent device and vent spaces between components to prevent high humidity or high temperature from solar heat gain or condensation between glass panes, occurring between stained glass and [inner] [outer] glass panes.
Select one of the option subparagraphs depending on the location of the place of the Work.
.3System Internal Drainage: Drain water entering joints, drain condensation occurring in glazing channels, or drain moisture occurring within assembly, by a weep drainage network from interpane spaces and glazing spaces, ventilate through aluminum frame not through glazed protective covering:
The placement of the drainage routing relative to the location of the air barrier and vapor retarder is critical; consult with Bovard Studios for technical assistance in this regard.
.1Ventilate and drain spaces to the exterior in central and northern climates where exterior temperatures regularly drop below freezing.]
.2[Ventilate and drain spaces to the interior in southern and warmer climates where cooled air conditioning is regularly used.]
Select a thermal break in the frame profile where used in cooler and colder exterior climates where temperatures regularly drop below freezing, to reduce the incidence of condensation.
.3[Provide an integral thermal break between inner and outer aluminum frame extrusions.]
.4Assembly: To accommodate, without damage to components or deterioration of seals, movement between window, perimeter frame and attachments, deflection of lintel or sill.
Select one or the other (not both) of the following two deflection requirement paragraphs. If choosing the second paragraph below, select only one of the deflection limit ratio subparagraph options.
.5Deflection:
.1Limit member deflection to flexure limit of glass of the longer dimension, with full recovery of glazing materials or as required by regulatory code, whichever is more stringent.
.2Create a glazing space from edge of glass to inside of frame surface, of a dimension greater than maximum deflection anticipated.
The following paragraph identifies an air loss rate that is not usually acceptable in colder climates.
.6Air Infiltration: Limit air infiltration through assembly to [0.03] [____] L/s/sq m ([0.06] [____] cf/min/sq ft) of wall area, measured at a reference differential pressure across assembly of [75] [____] Pa ([1.57] [____] psf) as measured in accordance with ASTM E283.
.7Air and Vapor Seal: Maintain continuous air barrier and vapor retarder throughout assembly, primarily in line with the pane of glass and heel bead of glazing compound, on the warm side of the window assembly.
1.7SUBMITTALS FOR REVIEW
Do not request submittals if drawings sufficiently describe the products of this section or if proprietary specifying techniques are used. The review of submittals increases the possibility of unintended variations to drawings. The following submittals are intended for review and approval or other action by the Consultant.
.1Section 01300: Submission procedures.
.2Product Data:
.1Provide component dimensions, anchorage and fasteners, glass, internal drainage details and [______].
.3Shop Drawings:
.1Indicate opening dimensions, framed opening tolerances, affected related work; installation requirements; and [______].
.2Indicate ventilation criteria and vent locations and sizes (free area).
.3Indicate filter material and applicable criteria, filter free-air efficiency, and filter locations.
.4Include actual wind load and dead load charts pertaining to the Place of the Work.
.5Indicate a load table listing all loads and reactions expected due to performance requirements.
Include the following paragraph when deemed appropriate for the project.
.6[Include certification of all loads and component reactions and the ability of the components to withstand same without adverse results, by a Professional Engineer, licensed at the Place of the Work.]
Use the following paragraph for submission of physical samples for selection of finish, color, texture, etc.
.4Submit [two (2)] [______] samples [____x____] mm ([____x____] inches) in size illustrating window frame section, [mullion section,] finished aluminum surfaces, [glass units,] [plastic lite,] [glazing materials,] [ventilation filters].
1.8SUBMITTALS FOR INFORMATION
The following submittals are informational; responsive action by the Consultant is not required.
.1Section 01300: Submission procedures.
.2Manufacturer's Certificate: Certify that Products meet or exceed specified requirements.
1.9ENVIRONMENT REQUIREMENTS
This article is intended to confirm that regulatory requirements have been addressed, and if necessary, certification has been addressed.
.1Dispose of solid and airborne lead particles and other toxic materials to regulatory requirements.
.2Provide a certified copy of recent and current record of adhering to regulatory requirements as to handling, packaging and disposing of lead particulate and other toxic products.
1.10QUALITY ASSURANCE
Only include this article if the specified windows warrant special design attention. AAMA 101 identifies a variety of window types and related performance characteristics as "Designations"; edit the text of this section accordingly. Include the last sentence of the following paragraph only when the costs of acquiring the specified standards are justified.
.1Perform Work in accordance with [AAMA 101 Designation [____].] [______.] [Maintain [one copy] [[____] copies] of [each] document on site.]
.2Installer: Company specializing in manufacturing [commercial] [institutional] aluminum windows with minimum [three (3)] [______] years [documented] experience.
1.11PRE-INSTALLATION MEETING
.1Section 01300: Pre-installation meeting.
.2Convene one (1) week before starting work of this section.
1.12DELIVERY, STORAGE, AND PROTECTION
.1Section 01600: Transport, handle, store, and protect products.
.2Protect finished aluminum surfaces with [wrapping.] [strippable coating.] Do not use adhesive papers or sprayed coatings that bond when exposed to sunlight or weather.
1.13WARRANTY
.1Provide warranty certificates in accordance with Section [01700.] [______.]
.2Warranty:
.1For sealed insulated glass units: [Five (5)] [Ten (10)] years.
.2For plastic glazed panes: [Five (5)] [Ten (10)] years.
.3For window frame glazing integrity and seal: [Five (5)] [Ten (10)] years.
PART 2 PRODUCTS
2.1FRAME MANUFACTURERS
.1Bovard Studio Inc., Fairfield IA 52556,
.1Phone 1-800-452-7796, Fax 1-641-472-0974,
.2Internet site at or
.3E-mail at .
.2Substitutions: [Not permitted.] [Refer to Section 01600.]
2.2MATERIALS
.1Extruded Aluminum: ASTM B221/B221M; [6063] [______] alloy, [T52] [______] temper.
.2Fasteners: [Stainless] [Galvanized] steel.
2.3COMPONENTS
The following four paragraphs identify four differing Bovard Studio frame profiles. If performance specifying, ensure no conflict exists between the member dimensions and member ability to resist imposed loads. These frame assemblies can be used for new work or after-market protective glazing for stained glass panes, and for interior glazed pane, inside of the stained glass pane. In the frame subparagraphs, select either a single or double pane sealed unit exterior light. If an exterior double pane protected covering and a stained glass lite are required in a frame, select either of the two Model 3500 frames further below. From a technical perspective, a close to ideal configuration for the window assembly for thermal, solar control, heat gain, condensation resistance, and air barrier reasons - is to have a stained glass lite placed in the middle between a clear outer double glass pane sealed unit and an inner single clear glass pane. Consult with Bovard Studios for a detailed explanation of this and alternative configurations including custom designs.
.1Frame - Bovard Studio Model Number: 1400 Series.
The Bovard Studio 1400 Series primary use is for after-market exterior protective glazing for stained glass windows, contains the Bovard Precision Flow ventilation technology for protection and preservation of the stained glass glazed window unit - or for an after-market sub-frame to hold a stained glass lite and an inner lite for the interior of an existing window frame.
.1Profiled for single [[annealed] [tempered] [laminated] glass] [[acrylic] [polycarbonate] plastic] exterior covering pane.
.2Frame Profile: “L” shape.
.3Non-thermally broken.
.4Snap-in glass stops, flush design.
.5Metal Thickness: 1.6 mm (1/16 inch).
.6Visible Frame Width: 36.5 mm (1-7/16 inches).
.7Frame Depth: 30 mm (1-3/16 inches).
.8Mullion:
.1Tubular extruded aluminum “T” profile.
.244 mm (1-3/4 inch) profile.
.3Double snap-in glass stops, flush design.
.9Air Space Ventilation: Bovard Studio Precision Flow device.
.2Frame - Bovard Studio Model Number: 2500 Series.
The Bovard Studio 2500 Series primary use is for a two glazed pane and thermal break, with interior glazed pane design with stained glass and exterior protective glazing for double insulated or single pane configuration, contains the Bovard Precision Flow ventilation technology for protection and preservation of the stained glass glazed window unit.
.1Profiled glazed frame for two (2) individual protective glazed panes.
.1[Single] [Double] pane of [[annealed] [tempered] [laminated] glass] [[acrylic] [polycarbonate] plastic].
.2Frame Profile: Tubular shape.
.3Non-thermally broken.
.4Snap-in glass stops, flush design.
.5Visible Frame Width: 39.7 mm (1-9/16 inches).
.6Frame Depth: 63.5 mm (2-1/2 inches).
.7Metal Thickness: 1.6 mm (1/16 inch).
.8Air Space Ventilation: Bovard Studio Precision Flow device.
.3Frame - Bovard Studio Model Number: 3500 Series (with thermal break and mullion).
The Bovard Studio 3500 Series primary use is for a three pane glazed assembly with a single interior glazing pane, stained glass pane, and exterior protective glazing for double pane insulated or single pane configuration, contains the Bovard Precision Flow ventilation technology for protection and preservation of the stained glass glazed window unit.
.1Profiled glazed frame for three (3) individual glass lights.
.1Exterior protective light of [[annealed] [tempered] [laminated] glass] [[acrylic] [polycarbonate] plastic].
.2Stained glass light.
.3Interior Clear glazed [single pane] [double pane sealed unit] glass light.
.2Frame Profile: “Flat” solid shape.
.3Thermally broken.
.4Mullion: Capable of glazing both sides of frame member.
.5Snap-in glass stops each side of light, flush design.
.6Visible Frame Width: 41.2 mm (1-5/8 inches).
.7Frame Depth: 89 mm (3-1/2 inches).
.8Metal Thickness: 4.7 mm (3/16 inch).
.4Frame - Bovard Studio Model Number: 3550 Series (without thermal break).
The Bovard Studio 3550 Series primary use is for a three pane glazed assembly, with thermal break, for interior glazing track design for stained glass and exterior protective glazing for double pane insulated and single pane configuration, contains the Bovard Precision Flow ventilation technology for protection and preservation of the stained glass glazed window unit.
.1Profiled glazed frame for three (3) individual glass lights.
.1Exterior protective light of [[annealed] [tempered] [laminated] glass] [[acrylic] [polycarbonate] plastic].
.2Stained glass light.
.3Interior Clear glazed [single pane] [double pane sealed unit] glass light.
.2Frame Profile: “Flat” solid shape.
.3Non-thermally broken.
.4Snap-in glass stops each side of light, flush design.
.5Visible Frame Width: 22.2 mm (7/8 inches).
.6Frame Depth: 89 mm (3-1/2 inches).
.7Metal Thickness: 4.7 mm (3/16 inch).
.8Air Space Ventilation: Bovard Studio Precision Flow device.
.5Window Opening Sills:
.1[Extruded] [Brake formed] aluminum.
.2Metal Thickness: [____] mm ([____] inch).
.3Sloped for positive wash.
.4Fit under sash [leg] [______] to [12] [____] mm ([½] [____] inch) beyond wall face.
.5One piece, full width of opening, [with jamb angles to terminate sill end].
.6Fasteners: [Stainless] [Galvanized] steel.
.7Air Ventilation Device Between Stained Glass and Interior or Exterior Glazing: Bovard Precision Flow® device.
.8Place a Precision Flow ventilation device at required interpane specs.
2.4GLASS AND GLAZING MATERIALS
Incorporate glass or plastic and glazing materials by direct reference to Section 08800. The following paragraphs only describe glass or plastic types; coordinate with Section 08800 and Section 08585 or 08595. Select the appropriate options in the follow subparagraphs.
.1Glass Materials: Refer to Section 08800, to types described below:
.1Glass in Exterior Light:
.1Single Pane: [[Annealed] [Tempered] [Laminated] Clear glass.] [[non-yellowing acrylic] [[Lexan XL10] polycarbonate] plastic.]
.2Double Pane: Clear insulated glass unit with:
.1Inner pane of [annealed] [tempered safety] glass.
.2Outer pane of [tempered] [laminated] safety glass.
.2Stained Glass: Specified in Section [08585.] [08595.]
.3Glass in Interior Light: Single pane Clear glass, [annealed] [tempered] [laminated] type.
.2Glazing Materials: Refer to Section 08800.
2.5SEALANT MATERIALS - FRAME PERIMETER
Incorporate perimeter sealant materials by direct reference to Section 07900. The following paragraphs only describe sealant type required; coordinate with a schedule in Section 07900. Sealants used for glazing are specified in Section 08800 and referenced in the article above.
.1Sealant and Backing Materials:
.1Specified in Section [08800.] [07900.]
.2Perimeter Sealant: [Silicone] [Polyurethane] [______] type.
.3Sealant Used Within System (Not Used for Glazing): [Polyurethane] [Butyl] [______] type.
2.6FABRICATION
.1Fabricate components with minimum and consistent clearances and shim spacing around perimeter of assembly, yet enabling installation and dynamic movement of frame and perimeter seal.
.2Accurately fit and secure joints and corners. Make joints flush, hairline, weatherproof, and air-tight.
.3Limit component joining methods to nut/bolt/lock washer fastenings.
.4Prepare components to receive anchor devices. Fabricate anchors.
.5Arrange fasteners and attachments to ensure concealment from view.
.6Prepare components with internal reinforcement for operating hardware.
.7 [Provide internal reinforcement within mullions with galvanized steel members to maintain rigidity.]
.8Permit internal drainage weep holes and channels to migrate moisture movement. Provide internal drainage of glazing spaces to exterior through weep holes.
.9Factory glaze window units to requirements of Section 08800.
2.7FINISHES
Select one finish from one of the following four subparagraphs.
.1Exposed Aluminum Surfaces: