Commercial Aluminum Project-Out Windows

Boyd Aluminum manufactures commercial aluminum project-out windows and projected aluminum window systems for schools, universities, hospitals, government offices, military structures, historic-replica work, coastal-weather applications, and other commercial building projects. Project-out windows open toward the exterior side of the building and may be specified as projected, casement, awning, zero-sightline vent, or PO configurations, so the right series depends on operation type, exterior clearance, ventilation strategy, frame depth, thermal requirements, AAMA rating, glazing, hardware, screens, historic requirements, and project-specific performance documentation.

Contemporary building designs often call for projected aluminum windows with clean sightlines, outward operation, controlled natural ventilation, published performance ratings, and glazing or accessory options that fit the application. A Direct Assistance™ representative can help project teams review the correct project-out window series for the building use, design intent, opening condition, and bid documents.

Boyd Project-Out and Projected Aluminum Window Series

Boyd project-out and projected aluminum windows include thermal-strut 3250XT configurations, historic-replica configurations, 6300, 4300, standard and narrow-sightline 2300 and 1300 systems, and SV100 zero-sightline vents for storefront and curtain wall conditions. Use the table below as a starting point, then confirm the selected series against current product data, drawings, glazing, opening conditions, and specification requirements.

Boyd commercial aluminum project-out and projected window series

Project-Out vs Project-In Commercial Windows

A project-out window opens outward toward the exterior. A project-in window opens inward toward the building interior. That direction of operation affects hardware, screens, clearance, exterior obstructions, interior layout, water management, user access, and code review.

• Use project-out windows when outward operation supports the opening condition, ventilation strategy, screen approach, interior clearance, or architectural intent.

• Use project-in windows when inward operation is the better fit for exterior constraints, user access, maintenance approach, or the selected window family.

• Do not choose only by swing direction. Match the series to AAMA rating, thermal requirements, glazing, frame depth, historic requirements, exterior clearance, and project-specific performance documentation.

Projected Aluminum Window, Casement, Awning, and Zero-Sightline Vent Options

Project-out is an opening direction, while projected aluminum window is the broader commercial category used for many outward-operating vent products. Some Boyd project-out products are projected-window configurations, some are casement configurations, and the SV100 is a zero-sightline vent used in storefront or curtain wall conditions with project-out casement or awning configurations. The drawings and specifications should identify whether the project requires a projected aluminum window, a project-out casement, an awning-style vent, a zero-sightline vent, a narrow-sightline product, or a specific Boyd series.

How to Choose a Project-Out Window Series

Project-out and projected aluminum window selection factors

When Project-Out Windows Make Sense

• Schools, universities, hospitals, government offices, military structures, and other commercial buildings that need operable projected aluminum windows with outward operation.

• Openings where controlled natural ventilation, awning-style operation, or outward airflow is part of the design intent.

• Projects where exterior operation is preferred because the interior layout, blinds, furnishings, or occupant use make inward operation less practical.

• Historic-replica or historic-review projects where exterior appearance, muntin details, sightlines, and finish need project-specific coordination.

• Projects where narrow sightlines are requested and the 2300 (NSL), 1300 (NSL), or SV100 product data should be reviewed separately from standard configurations.

• Storefront or curtain wall conditions where a zero-sightline vent may be needed for controlled ventilation without changing the overall framing approach.

• Coastal-weather, impact-documentation, or blast-documentation projects where the exact selected product data and project requirements need to be reviewed before bidding or submittals.

Common Project-Out Window Coordination Issues

• Exterior clearance: Project-out windows open toward the exterior, so adjacent walls, screens, railings, sunshades, walkways, exterior security conditions, and maintenance access should be reviewed.

• Projected, casement, and awning operation: Confirm whether the documents require a projected aluminum window, a project-out casement, an awning configuration, a zero-sightline vent, or a specific Boyd series before pricing or submittal preparation.

• Screens and access: Screen location, cleaning access, custodial control, hardware operation, and restrictor requirements should be coordinated with the outward-opening sash.

• Opening size and frame depth: Series depth and glazing capacity vary across the project-out family. Existing openings, receptors, panning, surrounding substrates, and finish conditions should be reviewed early.

• Narrow-sightline requirements: If the drawings or design intent call for narrow sightlines, confirm whether the project should be reviewed under 2300 (NSL), 1300 (NSL), or SV100 product data.

• Historic review: Historic or landmark projects may require muntin, profile, sightline, finish, and detail review by the project authority. Do not assume one historic application establishes approval for another project.

• Coastal, impact, and blast requirements: Coastal-weather positioning, impact documentation, and blast documentation are not interchangeable. Confirm the exact series, configuration, glazing, installation conditions, pressure requirements, and available product documentation.

• Egress and code-driven openings: Egress, fall protection, window opening-control-device requirements, and ventilation requirements are project-specific. Confirm the adopted code and authority-having-jurisdiction requirements for each opening.

What to Send Boyd for Project-Out Window Review

Send as much project information as possible so Boyd can review the project-out window series, operation type, and documentation needs without guessing.

• Project name, location, building type, bid deadline, and desired review timeline.

• Drawings, elevations, window schedule, specifications, and opening details.

• Whether the specification calls for PO, project-out, projected aluminum window, projected-out, casement, awning, zero-sightline vent, narrow sightlines, or a specific Boyd series.

• Desired Boyd series, if already specified, or the required AAMA class / PG rating.

• Opening sizes, rough openings, existing conditions, exterior clearance, sill heights, and egress or net clear opening requirements where applicable.

• Glazing requirements, glass thickness, thermal targets, U-value needs, CRF needs, and any acoustic or security requirements.

• Screen, hardware, custodial access, window opening-control-device requirements where applicable, restrictor, cleaning, and maintenance requirements.

• Historic appearance requirements, muntin patterns, finish requirements, sample needs, and review-authority comments if available.

• Coastal-weather conditions, impact-documentation needs, blast-documentation needs, forced-entry requirements, or other project-specific performance documentation requirements.

• Installation conditions, substrates, panning, receptors, anchors, surrounding wall conditions, storefront or curtain wall integration, and field constraints.

Related Boyd Resources

• Project-In Windows - compare inward-opening projection window options.

• Casement Windows - review related casement, awning, and projected window terminology.

• 3250XT Thermal-Strut Window Line - review thermal-strut project-out, project-in, casement, and fixed configurations.

• Historic Replication - review historic-replica and steel-replica aluminum window options.

• Blast-Resistant Window Review - review blast-related coordination for selected configurations where applicable.

• Impact / Florida Product Approval Review - review impact-related documentation for selected configurations where applicable.

• Finish Options - review standard and custom commercial aluminum finish options.

• Architectural Resources - access product data, specifications, and detail resources.

Commercial Aluminum Project-Out and Projected Window FAQ

What is a project-out window?

A project-out window is an operable window that opens outward toward the exterior side of the building. In commercial aluminum window specifications, the same concept may be described as project-out, projected aluminum, projected-out, outward-opening, awning-style, or PO depending on the product and drawing language. Project-out operation affects exterior clearance, hardware, screens, cleaning access, ventilation, code review, and product selection, so the opening direction should be confirmed before bidding or submittals.

How much exterior clearance do project-out windows need?

The required exterior clearance depends on sash size, opening geometry, hardware, screen approach, surrounding construction, and the selected Boyd series. Because a project-out window opens outward, the projection path should be reviewed against walkways, railings, sunshades, exterior screens, security conditions, maintenance access, and adjacent wall conditions. Send Boyd the opening sizes, elevations, and exterior conditions so the series and operation can be reviewed against the actual project constraints.

What is the difference between awning, casement, and projected commercial windows?

These terms can all involve outward operation, but they describe different commercial window configurations. An awning window is top-hinged and opens outward from the bottom, which can help shield the opening during light rain where controlled ventilation matters. A casement window is side-hinged and swings outward like a door, giving more direct airflow. A projected commercial window is the broader commercial category for outward-operating projected vents, commonly using projecting hardware or four-bar friction hinges depending on the series. On Boyd project-out work, the distinction affects the series family, AAMA rating, sash geometry, hardware, sightline, and product documentation, so match the term to the actual series and drawings.

Are commercial project-out windows thermally broken?

Current published Boyd product data lists either thermal-strut construction or a thermal barrier for the project-out series on this page, but the exact thermal design depends on the selected product. The 3250XT project-out configurations use a 39mm thermal strut, while the 6300, 4300, 2300, 2300 (NSL), 1300, 1300 (NSL), and SV100 pages list a thermal barrier or thermally broken construction. For broader thermal-system selection, review Boyd's XT thermal product line and confirm U-value, CRF, glazing, and energy-code documentation for the exact configuration.

Can project-out windows be used for coastal, historic, impact, or blast projects?

Sometimes, but those requirements are series- and configuration-specific. Selected Boyd project-out windows support historic-replica or historic-review applications. Current 3250XT project-out product data lists Blast: Yes and Impact: No, while the standard 2300 (PO) product data lists both Impact: Yes and Blast: Yes. Coastal-weather language does not automatically mean impact-rated or blast-related performance. Confirm the exact series, glazing, size, pressure, installation method, documentation path, and reviewing authority before specifying or bidding.