| Aluminum Clad Double Hung Windows

Feature Note: Casco double-hung windows include two operating sashes that slide vertically and tilt into the home for cleaning. Unit size, glass package, grille pattern, hardware color, exterior color, interior finish, installation method, and project energy requirements should be reviewed before ordering.

• Casco aluminum-clad products use heavy-duty extruded aluminum cladding, not roll-form aluminum or vinyl cladding.
• Double-hung windows operate vertically and do not swing outward.
• The base glass configuration is clear insulated glass with air fill.
• LoE glass packages are typically required when a project must meet a specific local energy code requirement, U-factor requirement, SHGC requirement, or performance target.
• Customers and project teams are responsible for confirming applicable project energy requirements before purchasing.
• For sash-only double-hung replacement applications where the existing frame can remain in place, review Casco Aluminum-Clad Double-Hung Replacement Kits.

Glass Selection Note: The base glass configuration is clear insulated glass with air fill. LoĒ glass packages are typically required when a project must meet a specific local energy code requirement, U-factor requirement, SHGC requirement, or performance target. Customers and project teams are responsible for confirming applicable energy requirements before purchasing Casco aluminum-clad windows.

Base Glass Configuration

The base glass configuration for Casco Aluminum-Clad Double-Hung Windows is clear insulated glass with air fill. This base configuration may be used when the project does not require a specific Low-E package and the applicable energy requirements allow it.

Clear glass allows strong visible light, but it does not provide the same solar control, UV protection, or U-factor performance as Low-E glass packages. When a project has a local energy code requirement or a specific U-factor, SHGC, or performance target, a Low-E glass package is typically required.

• U-factor measures heat flow through the window assembly. A lower U-factor means better resistance to heat loss.
• SHGC measures how much solar radiation enters as heat. A lower SHGC helps reduce solar heat gain.
• Visible Transmittance measures how much visible light passes through the glass. A higher visible transmittance means more daylight.
• UV transmission relates to fading protection. Lower UV transmission helps reduce fading potential for furniture, flooring, fabrics, artwork, and interior finishes.
• Glare control reduces harsh visible light in direct sun conditions.
• Privacy control can be handled through obscure glass, CLiC switchable privacy glass, or blinds-between-glass depending on whether the project needs permanent privacy, on-demand privacy, or integrated blind operation.

Laminated Glass

Laminated glass is available for Casco aluminum-clad double-hung windows. Laminated glass can be ordered with the same Cardinal LoĒ glass options when the project requires laminated glass along with a specific Low-E package.

Laminated glass is commonly reviewed when the project requires added safety, sound control, security considerations, impact resistance considerations, or project-specific glass requirements. The correct laminated glass configuration should be reviewed with the required Cardinal LoĒ coating, energy performance requirements, unit size, project location, and applicable code requirements before ordering.

Obscure Glass

Obscure glass is available for double-hung windows. It is commonly used in bathrooms, mud rooms, utility areas, and other locations where privacy is needed while still allowing light into the room.

CLiC Switchable Privacy Glass

CLiC switchable privacy glass is available where size, product configuration, wiring, project requirements, and availability allow. CLiC glass is used when the project needs on-demand privacy instead of permanent obscure glass or a traditional window treatment.

CLiC glass switches between clear and private. It is useful for bathrooms, bedrooms, offices, conference rooms, street-facing windows, side yards, and other openings where the customer wants privacy control while still allowing natural light into the space.

Because CLiC is a specialty glass option, electrical requirements, lead time, unit size, glass package, project energy requirements, and final application details must be reviewed before ordering.

Blink / ODL Blinds-Between-Glass

Blink / ODL blinds-between-glass options are available where size, product configuration, glass package, and project requirements allow. These options place the blind inside the insulated glass unit, helping protect the blind from dust, damage, and exposed cords.

Blinds-between-glass options must be reviewed for available sizes, glass type, Low-E requirements, operation type, warranty, lead time, and the project’s required energy performance before ordering.

• Clear insulated glass with air fill is the base glass configuration.
• LoĒ options are typically required when a project must meet a specific local energy code requirement or performance target.
• Quad LoĒ-452+ with Neat+ is commonly used for strong solar control, neutral appearance, lower solar heat gain, fade protection, and naturally cleaner exterior glass.
• LoĒ³-366^® is commonly used for balanced energy performance and clear appearance.
• LoĒ³-340+ is commonly used for direct sun and glare control.
• LoĒ-i89 combinations are commonly used for improved winter thermal performance, northern climates, and lower U-factor requirements.
• Triple pane LoĒ³-366^® with LoĒ-180™ is available when the project requires additional glass performance beyond standard dual pane configurations.
• Laminated glass is available with the same Cardinal LoĒ options.
• Specialty glass and blinds-between-glass options must be checked against size limits, glass package availability, lead time, and project performance requirements.
• The customer, dealer, contractor, architect, builder, or project team must confirm which glass package is required before ordering.

Grille Selection Note: Grille style, grille pattern, grille color, glass package, and window configuration should be confirmed before ordering. Double-hung grille layouts should be reviewed with both the upper sash and lower sash design in mind.

Internal grilles, also called grilles between the glass, are sealed between the panes of insulated glass. This provides the visual appearance of divided lites while keeping the interior and exterior glass surfaces easier to clean.

Internal grilles are available in two-tone finishes. The exterior side of the grille is matched to the selected exterior window color, and white is used on the interior side to coordinate with painted white interior finishes.

Simulated Divided Lite (SDL) grilles are mounted to the exterior and interior glass surfaces to create a more traditional divided-lite appearance. SDL grilles provide additional exterior and interior profile detail compared with grilles between the glass.

For a richer divided-lite appearance, SDL grilles can also be paired with an internal grille between the glass.

Interior removable wood grilles are available for projects that require a traditional interior grille appearance. These grilles are mounted on the room side of the sash and can be removed from the interior side of the window when needed.

Interior removable wood grilles should be selected based on the interior finish, grille pattern, sash size, and project design requirements.

• Grille options should be selected before ordering.
• Double-hung grille layouts should account for both the upper sash and lower sash.
• Internal grilles are sealed between the panes of glass.
• SDL grilles are applied to the interior and exterior glass surfaces.
• Interior removable wood grilles are available when a removable interior grille appearance is required.
• Grille type, profile, pattern, color, and glass package should be reviewed with the project requirements before ordering.

Hardware Selection Note: Hardware colors are standard selections. Double-hung window hardware should be selected with the interior finish, exterior color, sash operation, and project appearance requirements in mind.

Casco double-hung windows include hardware for vertical sash operation, locking, and tilt-in cleaning. The low-profile sash lock sits below the exterior sightline, and tilt latches allow the upper and lower sashes to tilt into the home for cleaning access.

• Double-hung windows include vertically operating upper and lower sashes.
• Both sashes tilt into the home for interior cleaning access.
• Low-profile sash locks sit below the exterior sightline.
• Tilt latches support tilt-in cleaning operation.
• Sash balances support vertical sash operation.
• Hardware colors are standard selections and should be confirmed before ordering.

Combination Note: Double-hung combinations should be reviewed for unit size, mull configuration, grille alignment, glass package, operation, exterior color, interior finish, installation method, and project energy requirements before ordering.

• Combination layouts should be reviewed before ordering.
• Double-hung operation, sash travel, tilt-in cleaning clearance, and screen access should be considered when planning layouts.
• Grille patterns should be reviewed across all units so sightlines and lite patterns coordinate.
• Glass package selection should be reviewed for each unit in the combination.
• Exterior color, interior finish, hardware color, and trim details should be coordinated across the full combination.
• Factory-mulled combinations and field-mulled conditions should be reviewed based on project requirements and installation method.
• For sash-only double-hung replacement applications where the existing frame can remain in place, review Casco Aluminum-Clad Double-Hung Replacement Kits.

Downloadable Resources

Use these documents to review aluminum-clad window and patio door product information, double-hung sizing, and double-hung picture window sizing.

Related options include Aluminum-Clad Casement Windows, Replacement Casement Sashes, Aluminum-Clad Double-Hung Replacement Kits, Aluminum-Clad Patio Doors, and Architect-Specified Windows & Doors.

These products may be useful when the project includes multiple Casco aluminum-clad product types, sash-only replacement applications, or full window and patio door replacement.

Quick Summary: Casco Aluminum-Clad Double-Hung Windows are complete window units with two vertically operating sashes, tilt-in cleaning, block-and-tackle balance systems, an extruded check rail interlock, extruded aluminum exterior cladding, pine wood interiors, available screen options, available grille options, and glass package selections based on project requirements.

A double-hung window has two operating sashes: an upper sash and a lower sash. Both sashes slide vertically within the window frame, allowing ventilation from the top, bottom, or both.

Casco Aluminum-Clad Double-Hung Windows combine this traditional operating style with extruded aluminum exterior cladding and pine wood interiors. Review the Features section for construction and operation details.

Double-hung windows are commonly used in bedrooms, living rooms, dining rooms, upper floors, traditional elevations, historic-style homes, remodel projects, replacement projects, and new construction projects.

They are also useful near walkways, porches, patios, decks, landscaping, and driveways because the sashes move vertically and do not swing outward. Review Combinations for layout examples.

Double-hung windows are often selected when the project needs traditional appearance, vertical operation, tilt-in cleaning, and no exterior sash projection. Casement windows are often selected when the project needs outward-swinging operation, full top-to-bottom ventilation, and a larger uninterrupted glass area.

The right choice depends on the desired appearance, operation, ventilation, exterior clearance, grille layout, and project requirements. Review Casco Aluminum-Clad Casement Windows when an outward-swinging window is preferred.

No. Double-hung windows slide up and down. Since they do not swing outward, they are practical for locations where exterior clearance is limited. Review the Combinations section for examples of double-hung windows used alone or with other unit types.

Yes. Casco double-hung windows include two operating sashes. The top sash and bottom sash both slide vertically, allowing flexible ventilation control.

Yes. The upper and lower sashes can be positioned at different heights for variable ventilation. This allows the window to be opened from the top, the bottom, or both depending on room conditions and user preference.

Yes. The upper and lower sashes tilt into the home for easier cleaning access from the interior. This can be especially useful on upper-floor windows or where exterior access is difficult.

The stepped jamb liner also helps make returning the sash to its normal operating position easier. The liner creates a natural stop that prevents the sash from tilting past 90 degrees, helping guide the sash back into position after cleaning.

For more product detail, review the Features and Hardware sections.

Casco double-hung windows use block-and-tackle balance systems to support vertical sash operation. The balance system helps the upper and lower sashes move up and down smoothly and remain positioned during normal use.

For related operation details, review the Hardware section.

Casco double-hung windows use block-and-tackle balance systems to support vertical sash operation. The balance system helps the upper and lower sashes move smoothly, remain positioned during normal use, and return to operation after the sash has been tilted in for cleaning.

The check rail is the area where the upper and lower sashes meet when the window is closed. Casco double-hung windows include an extruded check rail interlock across the full width of the window sashes to support alignment, closure, and performance.

Unlike many competing double-hung windows that use an add-on or screwed-on interlock, the Casco double-hung interlock is extruded as part of the sash design. This creates a cleaner, more durable interlock detail and avoids relying on a separate applied component at the meeting rail.

For more construction information, review the Features section.

The stepped jamb liner supports sash travel, helps reduce harsh drafts, and provides the natural stop used when returning the sash from tilt-in cleaning back to normal operation. Beige stepped jamb liners are standard, and white stepped jamb liners are available as an option.

Casco double-hung windows include double-hung hardware for sash locking, vertical operation, and tilt-in cleaning. Standard hardware colors are shown in the Hardware section and should be reviewed with the selected window color and interior finish.

Yes. Custom sizes are available within product size limits. Final size, configuration, glass package, grille pattern, hardware color, and installation requirements should be reviewed before ordering. Review the Casco Double-Hung Size Chart for size information.

Yes. Double-hung picture windows are available for fixed applications and combination layouts. Double-hung picture windows are often used with operating double-hung units to create larger layouts while maintaining coordinated sightlines and styling.

Review the Casco Double-Hung Picture Size Chart and Combinations section for more detail.

A double-hung picture window is a fixed window designed to visually coordinate with Casco double-hung windows. It is commonly used in double-hung combinations when the project needs a fixed center unit, fixed side unit, or larger glass area while maintaining double-hung sightlines, frame proportions, and grille alignment.

A casement picture window is a fixed window designed to visually coordinate with Casco casement windows. It is commonly used in casement combinations where the project needs cleaner casement-style sightlines, larger fixed glass areas, or a fixed unit that aligns with operating casement windows.

The right picture window style should be selected based on the operating windows being used in the same opening or elevation. Use double-hung picture windows with double-hung layouts when matching double-hung proportions is important. Use casement picture windows with casement layouts when matching casement proportions is important.

Review Double-Hung Window Combinations, Aluminum-Clad Casement Windows, and the Double-Hung Picture Size Chart when comparing fixed picture window options.

Yes. Double-hung windows can be used alone, paired together, placed beside picture windows, used below transoms, or included in larger factory-mulled or project-specific combinations. Combination layouts should be reviewed for sizing, grille alignment, glass package, operation, and installation requirements.

Review the Combinations and Grilles sections for related layout information.

A Casco Aluminum-Clad Double-Hung Window is a complete window unit. A Casco Aluminum-Clad Double-Hung Replacement Kit is a sash-replacement-style option for compatible existing double-hung openings where the existing frame can remain in place.

For sash-only double-hung replacement applications, review Casco Aluminum-Clad Double-Hung Replacement Kits.

Yes. Double-hung windows are commonly associated with traditional and historic-style architecture. Casco aluminum-clad double-hung windows may be reviewed for projects where the design requires traditional double-hung appearance with the long-term exterior benefit of extruded aluminum cladding.

Historic review requirements vary by project, municipality, landmark district, or review committee and should be confirmed before ordering. Review Architect-Specified Windows & Doors for related project information.

The base glass configuration is clear insulated glass with air fill. This may be used when the project does not require a specific Low-E package and the applicable project requirements allow it. Review the Glass & Screen section for glass package options.

Yes. Cardinal Low-E glass packages are available, including options such as LoE³-366^®, LoE³-340+, Quad LoE-452+, LoE-i89 combinations, and triple pane configurations where applicable.

Low-E glass packages are typically required when a project must meet a specific local energy code requirement, U-factor requirement, SHGC requirement, or performance target. Review Glass & Screen for LoE³-366^®, LoE³-340+, Quad LoE-452+, LoE-i89 combinations, and triple pane options.

The customer, dealer, contractor, architect, builder, or project team is responsible for confirming the project energy requirements before purchasing. The correct product configuration should be selected based on required U-factor, SHGC, VT, climate zone, code path, unit configuration, and supporting NFRC performance information.

Yes. Laminated glass is available and can be paired with the same Cardinal Low-E glass options where available and where the selected unit size and project requirements allow. Review the Glass & Screen section for specialty glass details.

Yes. Obscure glass, CLiC switchable privacy glass, and blinds-between-glass options may be available depending on size, configuration, glass package, project requirements, and availability. Review the Glass & Screen section for privacy glass options.

Casco double-hung windows include an extruded screen frame in an exterior cladding matching color. Screen fabric options should be reviewed based on project needs. Review Glass & Screen for standard screen, BetterVue, and PetScreen options.

Standard screen fabric is available, along with BetterVue and PetScreen options. BetterVue is commonly selected when clearer views are desired. PetScreen is commonly selected where added screen durability is needed for pets or higher-traffic conditions.

Available grille options include internal grilles between the glass, simulated divided lite (SDL) grilles, and interior removable wood grilles. Grille type, grille pattern, grille color, and glass package should be selected before ordering. Review the Grilles section for gallery examples and grille styles.

Double-hung grille layouts should account for both the upper sash and lower sash. Grille patterns should be reviewed across the full elevation so lite patterns, sightlines, and related window combinations coordinate properly.

Casco aluminum-clad double-hung windows are available in exterior standard colors, Estate Colors, and custom exterior colors where applicable. Physical color samples should be reviewed when color accuracy is important. Review the Colors section for available color galleries.

Yes. Pine wood interiors are available with raw pine and factory-applied interior finish options where applicable, including stain, prime, paint, and custom interior paint options. Review the Colors section for interior prefinished wood color options.

Yes. Double-hung hardware colors are standard selections. Hardware color should be reviewed with the selected window color, interior finish, and project appearance requirements before ordering. Review the Hardware section for available hardware color selections.

Yes. Casco aluminum-clad products use heavy-duty extruded aluminum cladding, not roll-form aluminum or vinyl cladding. Extruded aluminum provides a more substantial exterior profile and durable exterior protection compared with lighter-duty cladding approaches. Review the Features section for double-hung construction details.

Extruded aluminum cladding matters because it creates a stronger, more rigid exterior profile than roll-form or vinyl cladding. When comparing products, customers should confirm whether the exterior is heavy-duty extruded aluminum, thinner roll-form aluminum, or vinyl cladding.

Yes. Casco Aluminum-Clad Double-Hung Windows are NFRC certified. Final energy performance depends on the selected size, glass package, grille configuration, unit type, and product configuration. Review the Glass & Screen section for glass-package information and the Resources section for downloadable product documents.

Yes. Casco double-hung windows can coordinate with other Casco aluminum-clad products, including Aluminum-Clad Casement Windows, Replacement Casement Sashes, Aluminum-Clad Double-Hung Replacement Kits, and Aluminum-Clad Patio Doors.

Double-hung window product information can be reviewed in the Casco Aluminum-Clad Window & Patio Door Guide, the Casco Double-Hung Size Chart, and the Casco Double-Hung Picture Size Chart. Additional downloadable resources are listed in the Resources section.

Related products include Aluminum-Clad Casement Windows, Replacement Casement Sashes, Aluminum-Clad Double-Hung Replacement Kits, Aluminum-Clad Patio Doors, Architect-Specified Windows & Doors, Aluminum Storm Windows, and Aluminum Storm Doors.

Casco Aluminum-Clad Double-Hung Windows combine traditional vertical sash operation with durable extruded aluminum exterior cladding and pine wood interiors. They are a strong choice where the project needs classic appearance, variable ventilation, tilt-in cleaning, limited exterior projection, and coordinated options for glass, grilles, screens, colors, and hardware.

Double-hung windows are commonly selected for residential, light commercial, architect-specified, remodel, replacement, and new construction projects.

Additional double-hung resources: Casco Aluminum-Clad Window & Patio Door Guide, Casco Double-Hung Size Chart, and Casco Double-Hung Picture Size Chart.