Glass |

Common Replacement Glass Starting Point: LoE²-272 is one of the most common LoE replacement glass options Casco reviews because it balances visible light, energy performance, and moderate solar control.

The final glass package should still be confirmed based on the existing window or door, overall IG thickness, glass size, safety glass requirements, coating match, appearance/color/tint expectations, spacer, grille pattern, and final application.

Thickness Note: Glass thickness and overall IG thickness are not the same thing. Overall IG thickness affects fit, glazing bead compatibility, sash operation, seal compression, hardware clearance, and installation.

Replacement glass should match the required thickness for the existing sash or product unless an approved product-specific change is being made.

Performance Note: Cardinal center-of-glass or IGU performance values are not the same thing as full window or door NFRC ratings.

Final code compliance depends on the full certified window or door system, frame, sash, spacer, coating, glass thickness, gas fill, and certified product configuration.

Important: Grille options vary by Casco product. For Casco manufactured products, SDL, GBG, removable grille, and internal grille availability must be reviewed on the specific product page.

For example, Casco Double-Hung Replacement Kits with SDL use applied exterior and interior grilles only and do not use an internal between-the-glass spacer.

• Confirm grille type, grille profile, grille color, grille pattern, and spacer finish before ordering.
• Confirm whether the selected Casco product allows GBG, SDL, removable grilles, or another grille style.
• Confirm glass thickness, overall IG thickness, airspace, LoE coating, safety glass requirements, and final application.
• Grilles and spacers can affect appearance, performance, availability, and lead time.

Casco insulating glass orders are placed through CASCOPRO or PROConnect.

CLiC Planning Note: CLiC is a powered specialty glass product. Electrical planning, controls, wiring access, lead time, final unit size, glass package, and final application details must be reviewed before ordering.

CLiC defaults to privacy mode when power is lost.

CLiC is not currently available in curved or shaped configurations. It must also be used in a framed window, door, or wall system and is not available as an exposed-edge or frameless polished-edge fabricated glass product.

• Confirm glass type, privacy level, safety glass requirements, LoE coating, spacer, glass thickness, and final application before ordering.
• Obscure, tinted, laminated, tempered, CLiC, and decorative glass options may have different availability, size limits, lead times, and product restrictions.
• Decorative door glass options are separate from Cardinal insulating glass options and should be reviewed based on the door product and final application.

Casco insulating glass orders are placed through CASCOPRO or PROConnect.

Shape Review Note: Some shaped glass can be ordered using a Cardinal shape number and complete dimensions. Other shapes may require a physical template or additional review depending on the shape complexity and required accuracy.

Required information may include shape number, width, height, radius, leg height, springline, overall IG thickness, glass type, LoE coating, safety glass requirements, spacer, quantity, and final application.

• Confirm the Cardinal shape number or provide complete shape information before ordering.
• Confirm all dimensions, including radius, leg height, springline, and overall IG thickness where applicable.
• Confirm glass type, LoE coating, safety glass requirements, spacer, quantity, and final application.
• Review and approve CAD drawings or templates before production when required.

Casco insulating glass orders are placed through CASCOPRO or PROConnect.

Stock Note: Stock availability changes. Confirm size, thickness, glass type, safety glass, LoE coating, and availability before quoting or ordering.

Patio door glass and sidelite glass commonly require tempered safety glass. The ordering party, contractor, installer, builder, architect, or project team is responsible for confirming safety glass requirements.

National Request Note: Completing an onboarding request does not guarantee delivery, account approval, or immediate service availability. It gives Casco the information needed to review the request and determine whether a workable solution may be available.

Glass delivery outside the local Chicagoland area may depend on order volume, rack logistics, route availability, unloading requirements, dealer support, and overall account fit.

• Confirm delivery, pickup, or onboarding requirements before ordering.
• Confirm unloading ability, storage conditions, and edge protection before glass arrives.
• Confirm exact size, overall IG thickness, glass type, safety glass requirements, spacer, grille pattern, shape, and final application.
• National or regional requests should include estimated volume, delivery location, typical glass sizes, order frequency, and business details.

Casco insulating glass orders are placed through CASCOPRO or PROConnect once the account and ordering path are approved.

Online Glass Quoting and Ordering

Casco insulating glass ordering is handled through CASCOPRO or PROConnect. Approved dealers, glass shops, contractors, and trade customers can use these tools to quote and order made-to-order Cardinal insulating glass units and related glass options.

Glass Performance, Coatings, and Technical Information

Cardinal technical resources provide additional information on glass performance, LoE coatings, insulating glass construction, cleaning, fading, condensation, breakage, grilles, spacers, and product-specific considerations.

Measurement, Shapes, Grilles, and Product Support

Use these Casco resources when reviewing replacement glass, shaped glass, grille options, product documents, and related insulating glass information.

Privacy-On-Demand Glass

CLiC is Cardinal’s switchable privacy glass technology. It changes from clear to private using powered liquid crystal technology and can be reviewed for framed window, door, or wall systems where privacy control is needed.

Insulating Glass Technical References

Coated Glass Technical References

Float Glass and Pyrolytic Coating References

Laminated Glass Technical References

Ordering Note: Insulating glass orders should be reviewed carefully before submission. Required information may include width, height, overall thickness, glass type, LoE coating, safety glass requirements, spacer, grille pattern, shape, quantity, and final application.

Final dimensions, glass selection, code requirements, safety glass requirements, and application suitability are the responsibility of the ordering party, contractor, installer, builder, architect, or project team.

Quick Summary: Casco supplies made-to-order Cardinal insulating glass units for replacement, repair, sash, door, restoration, and residential specialty glass needs. LoE²-272 is one of the most common LoE replacement glass options Casco reviews because it balances visible light, energy performance, and moderate solar control. Other common options include clear glass, LoE glass, obscure glass, tempered glass, laminated glass, grilles between glass, standard XL Edge spacer, Endur spacer, custom shapes, CLiC switchable privacy glass, and Cardinal performance glass packages such as LoE²-240, LoE³-366, LoE³-340+, LoE-i89 combinations, and Quad LoE-452+ with Neat+.

An insulating glass unit, often called an IG unit or IGU, is a sealed glass unit made with two or more panes of glass separated by an airspace and spacer system. IG units are used in windows, doors, sashes, replacement glass, and specialty glass applications.

Cardinal describes insulating glass as two or more panes of glass separated by a spacer and sealed around the edges. For a general technical reference, review Cardinal’s Technical Glass Guide.

Yes. Casco supplies made-to-order Cardinal insulating glass units for glass shops, contractors, dealers, builders, remodelers, window repair professionals, and residential replacement needs.

Cardinal insulating glass can be reviewed for replacement glass, sash repair, door glass, restoration work, custom window projects, and residential specialty glass applications.

Yes. Cardinal glass packages are used as a standard in Casco manufactured windows and doors. Product configuration, performance requirements, and available options should be confirmed before ordering.

Related Casco manufactured products include Aluminum-Clad Casement Windows, Aluminum-Clad Double-Hung Windows, Aluminum-Clad Patio Doors, Replacement Casement Sashes, and Double-Hung Replacement Kits.

Casco can help supply dual pane and triple pane insulating glass units with available clear glass, LoE glass, obscure glass, tempered glass, heat-strengthened glass, laminated glass, grilles between the glass, spacer options and finishes, custom shapes, radius glass, concave radius glass, CLiC switchable privacy glass, and template glass where available.

Yes. Cardinal insulating glass units supplied through Casco are made to order to the nearest 1/16" dimension. Overall thickness, glass type, LoE coating, spacer, grille pattern, safety glass requirements, shape, quantity, and final application are based on product and order requirements.

Cardinal insulating glass is known for automated manufacturing, durable seal systems, low seal-failure-rate history, XL Edge and Endur spacer technology, LoE glass coatings, and a broad range of glass package options.

For more information on Cardinal insulating glass construction and durability, review Cardinal’s Insulating Glass Durability bulletin and Cardinal Insulating Glass page.

Yes. Casco can supply custom insulating glass units for failed glass replacement, fogged glass replacement, broken glass replacement, sash repair, restoration work, and residential replacement glass needs through dealer and trade support channels.

The existing sash, frame, glazing method, glass size, overall IG thickness, and final application should be reviewed before ordering replacement glass.

Glass-only replacement may be the right choice when the existing sash, frame, glazing pocket, and surrounding window or door condition are still sound. In those cases, replacing only the failed or broken insulating glass unit can be a practical repair option.

If the sash is rotted, warped, mechanically failing, leaking, no longer square, or no longer compatible with the required glass thickness, glass-only replacement may not solve the full problem. In those cases, review related Casco replacement options such as Replacement Casement Sashes, Double-Hung Replacement Kits, or full Aluminum-Clad Windows.

Sash replacement should be reviewed when the sash itself has issues that glass-only replacement cannot solve. This may include poor operation, failed balances, damaged weatherstripping, rotted sash components, poor fit, sash warping, or frame and sash compatibility concerns.

Casco’s Replacement Casement Sashes and Aluminum-Clad Double-Hung Replacement Kits may be useful when the existing window opening can remain but the sash or operating components need to be improved.  While the double-hung replacement kit is designed to be homeowner friendly, casement replacement sashes should be installed by a qualified field technician because carpentry work or other modifications may be required for the sash to properly fit the existing window opening.

Full window replacement should be reviewed when the frame, opening, sill, sash, or surrounding condition is damaged, leaking, out of square, deteriorated, or when the customer needs a complete performance upgrade that glass-only replacement cannot provide.

Related Casco options include Aluminum-Clad Casement Windows, Aluminum-Clad Double-Hung Windows, Aluminum-Clad Patio Doors, and the broader Aluminum-Clad Windows and Doors product line.

Failed insulating glass usually refers to a sealed glass unit that has lost its seal. Common signs include fogging, moisture, staining, or condensation between the panes of glass where it cannot be cleaned from the interior or exterior surface. Moisture on the exterior or roomside surfaces of the glass does not constitute failed glass and are often signs of humidity or temperature conditions.

For more technical detail, review Cardinal’s Insulating Glass Condensation bulletin.

In many cases, yes. If the existing sash or frame is still serviceable, a replacement insulating glass unit may be ordered and installed into the existing product by a qualified glass shop, glazing contractor, installer, or project team.

Glass-only replacement does not correct damaged sash, rotted frames, broken hardware, failed balances, missing weatherstripping, poor operation, or other window problems. The full opening should be reviewed before deciding whether glass-only replacement is the right approach.

For older windows where the glass and sash condition both need review, compare glass-only replacement with Replacement Casement Sashes, Double-Hung Replacement Kits, or full Aluminum-Clad Windows.

LoE²-272 is one of the most common LoE replacement glass options Casco reviews for failed insulating glass, fogged glass, broken glass, sash repair, and general replacement IG projects.

It is often a practical starting point because it balances visible light, energy performance, and moderate solar control. This makes it a common choice when the customer needs a dependable replacement glass package but does not have a project-specific requirement for stronger solar control, lower SHGC, glare reduction, LoE-i89, Quad LoE-452+, laminated glass, or another specialty glass configuration.

The final glass package should still be confirmed based on the existing window or door, overall IG thickness, glass size, safety glass requirements, coating match, appearance, color, and tint expectations, spacer, grille pattern, and final application.

Casco can help review available Cardinal glass options, but exact matching depends on the original glass type, coating, tint, spacer, thickness, age, manufacturer, and existing product condition.

Glass appearance can vary between old and new units because of age, exposure, coating differences, tint differences, screen use, interior lighting, exterior surroundings, and viewing angle. It is best not to expect an exact match when replacing only one glass unit. Casco suggestss reviewing whether all units within the same room, elevation, or window combination should be replaced when appearance matching is important.

Replacement insulating glass measurements should include width, height, overall IG thickness, glass makeup, spacer, coating, safety glass requirements, grille pattern, shape details, and final application.

Daylight opening size, visible glass size, sash opening size, and actual IG unit size may not be the same. A qualified installer, glass shop, glazing contractor, or project team should verify the final required IG unit size before ordering.

Overall IG thickness affects how the glass fits into the sash, frame, glazing pocket, or door system. The wrong thickness can affect glazing bead compatibility, sash operation, seal compression, hardware clearance, and installation.

Replacement glass should match the required thickness for the existing sash or product unless an approved product-specific change is being made.

LoE glass is coated glass designed to improve energy performance. Different LoE coatings can help manage heat loss, solar heat gain, glare, visible light, and UV transmission.

The correct LoE glass package depends on the project location, sun exposure, glass configuration, appearance preference, performance goals, and final application.

Common Cardinal LoE options include LoE²-272, LoE²-270, LoE²-240, LoE³-366, LoE³-340+, LoE-180, LoE-i89 combinations, and Quad LoE-452+ with Neat+.

For replacement glass review, LoE²-272 is commonly used as the starting comparison point because it offers a balanced glass package. Stronger solar-control or glare-control needs may shift the review toward LoE²-240, LoE³-340+, LoE³-366, or Quad LoE-452+ depending on the project.

For performance comparisons, review Cardinal’s Insulating Glass Unit Performance Data bulletin.

Related Casco products using glass package review include Aluminum-Clad Casement Windows, Aluminum-Clad Double-Hung Windows, Aluminum-Clad Patio Doors, Replacement Casement Sashes, and Double-Hung Replacement Kits.

Quad LoE-452+ is Cardinal’s four-layer silver coating designed for strong solar control, low exterior reflectance, 99% UV protection, and Neat+ as the standard exterior coating.

Quad LoE-452+ should be reviewed for hot or sunny exposures, strong solar-control needs, UV reduction, and projects where the final appearance and performance package are appropriate. It is not automatically the best choice for every project, and the full glass configuration should be reviewed before ordering.

For more information, review Cardinal’s Quad LoE-452+ product page.

LoE²-240 and LoE³-340+ should be reviewed where stronger solar control or glare control is needed. These options may be useful for direct sun exposures or rooms where lower solar heat gain is important.

Solar-control glass should be reviewed with the full product configuration, especially where heat buildup, glass location, shading, tint, or thermal breakage risk may be factors.

LoE-i89 is a room-side, fourth-surface coating used to improve U-Factor performance in selected glass packages. It is not a standalone performance answer by itself and must be reviewed with the complete glass configuration, including glass thickness, airspace, gas fill, spacer, coating selection, and final application.

For technical information, review Cardinal’s Cardinal LoE-i89 technical service bulletin listing.

Neat+ is an exterior glass coating used with selected Cardinal glass products. It helps exterior glass stay naturally cleaner and clean easier. Quad LoE-452+ includes Neat+.

Cardinal’s Neat+ bulletin explains that Neat+ uses anti-static and photocatalytic properties to help exterior glass stay cleaner longer. For more information, review Cardinal’s Neat+ Coated Glass bulletin.

Retrofit films should be reviewed very carefully. Cardinal does not recommend the use of retrofit films on insulating glass because they may increase the potential for premature IG unit failure or glass breakage and can affect LoE coating performance. Additionally, applying aftermarket film to a new Cardinal insulating glass unit may void Cardinal warranty coverage because of the added risk of heat buildup, premature IG unit failure, glass breakage, and coating-related issues.

For more information, review Cardinal’s Use of Retrofit Films bulletin.

CLiC is Cardinal’s switchable privacy glass technology. It changes from clear to private using powered liquid crystal technology, allowing privacy on demand while still allowing light into the space.

CLiC can be reviewed for windows, doors, partitions, conference rooms, bathrooms, bedrooms, offices, street-facing windows, side yards, healthcare spaces, and other openings where privacy control is needed without permanent obscure glass or a traditional window treatment.

For more information, review Casco’s CLiC switchable privacy glass page.

CLiC uses liquid crystal technology. When the glass is in the private state, the liquid crystals scatter light, creating a translucent privacy appearance. When powered to the clear state, the liquid crystals align and the glass becomes clear.

This allows the same glass opening to switch between clear viewing and privacy mode depending on the user’s needs.

CLiC can be reviewed for residential and commercial interior and exterior applications where the glass is used within an appropriate framed window, door, or wall system.

Common applications include bathrooms, bedrooms, home offices, conference rooms, private offices, entry areas, healthcare doors, viewing rooms, partitions, and modern renovation projects.

CLiC availability in Aluminum-Clad Casement Windows, Aluminum-Clad Double-Hung Windows, and Aluminum-Clad Patio Doors should be reviewed based on size, wiring, product configuration, and product requirements.

Yes. CLiC can be reviewed as either single-pane glass for interior applications or as part of an insulating glass unit where size, product configuration, wiring, LoE coating, spacer, product requirements, and availability allow.

Because CLiC is a powered specialty glass product, electrical planning, controls, wiring access, lead time, final unit size, glass package, and final application details must be reviewed before ordering.

CLiC defaults to privacy mode when power is lost. This should be reviewed during project planning, especially for bedrooms, bathrooms, conference rooms, offices, healthcare spaces, and any location where privacy expectations are important.

No. Obscure glass provides permanent privacy through a fixed pattern or finish. CLiC provides on-demand privacy by switching between clear and private modes.

Obscure glass is often used when privacy is always needed. CLiC is used when the customer wants privacy control without permanently blocking the clear view.

Yes. CLiC is a powered switchable privacy glass product. Wiring, controls, power requirements, access, and installation details must be reviewed before ordering.

CLiC project planning should include the contractor, electrician, glazing contractor, builder, architect, or project team responsible for integrating the glass into the final opening.

CLiC is not currently available in curved or shaped configurations. It must also be used in a framed window, door, or wall system and is not available as an exposed-edge or frameless polished-edge fabricated glass product.

CLiC planning resources can be reviewed on Casco’s CLiC product page and resources page. These references are useful for reviewing applications, brochures, wiring, technical information, and planning requirements.

Casco CLiC Switchable Privacy Glass Page

Casco Resources Page

U-Factor measures how well a glass package can keep heat from escaping from the inside of a room. The lower the number, the better the glass package is at resisting heat loss.

Solar Heat Gain Coefficient measures how well a glass package resists unwanted solar heat gain. The lower the number, the less solar heat passes through the glass.

Visible Transmittance measures how much visible light passes through the glass. The higher the number, the more natural daylight the glass allows into the space.

UV transmission measures how much ultraviolet light passes through the glass. Lower UV transmission can help reduce fading potential for flooring, furniture, fabrics, artwork, and interior finishes.

No. Published glass performance values are reference values and can vary by complete glass package. Coating selection, glass thickness, airspace, gas fill, spacer, dual pane or triple pane construction, and other details can affect final performance.

Cardinal center-of-glass or IGU performance values are not the same thing as full window or door NFRC ratings. Final code compliance depends on the full certified window or door system, frame, sash, spacer, coating, glass thickness, gas fill, and certified product configuration.

Performance requirements should be confirmed for the specific product configuration before ordering. For additional data, review Cardinal’s IGU Performance Data bulletin and the National Fenestration Rating Council.

No. Insulating glass alone does not confirm energy code compliance. Energy code compliance is based on the full certified window or door system and product requirements, not only the IG unit.

The complete product configuration, frame, sash, spacer, glass coating, glass thickness, gas fill, hardware, weatherstripping, installation, and certified rating should be reviewed where code compliance is required.

Argon gas is used in insulating glass units to help lower U-Factor and improve thermal performance. Cardinal’s argon gas filling bulletin explains that insulating glass units cannot be 100% filled with any gas and that Cardinal designs units to have initial average argon fills of 90% or above unless otherwise specified.

For more information, review Cardinal’s Argon Gas Filling bulletin.

Triple pane glass may be reviewed where additional thermal performance is required or where the product calls for a lower U-Factor glass package. Triple pane configurations should be reviewed carefully because coating placement, airspace, glass thickness, LoE-i89, thermal stress, size limits, and final application can affect the correct glass selection.

For performance data, review Cardinal’s IGU Performance Data bulletin and Cardinal’s Triple-Pane Guidelines listing.

Condensation can occur when warm, humid air contacts a colder glass surface. Depending on the conditions, condensation may appear on the room side glass surface, exterior glass surface, or between the panes if the insulating glass seal has failed.

Condensation does not always mean the glass is defective. Interior humidity, exterior temperature, glass temperature, room ventilation, window coverings, and air movement can all affect condensation. For more information, review Cardinal’s Insulating Glass Condensation bulletin.

In some restoration or comfort situations, Storm Windows may also be reviewed as a related exterior protection and comfort option for existing windows. Storm windows do not eliminate all condensation conditions and should be reviewed based on the existing opening, ventilation, humidity, and installation conditions.

Fogging between the panes can be a sign that the insulating glass seal has failed, but some fogging-like appearances can also be related to chemical fogging or other glass conditions.

Cardinal’s fogging bulletin explains that chemical fogging can occur when material in the IG unit airspace volatilizes and later condenses on an inside glass surface. For more information, review Cardinal’s Fogging Potential in Insulating Glass Units bulletin.

If the sash or window itself is also failing, compare replacement glass with Replacement Casement Sashes, Double-Hung Replacement Kits, or full Aluminum-Clad Windows.

Yes, selected glass packages can reduce fading potential by lowering UV and visible light transmission. However, no glass option completely eliminates fading. Flooring, furniture, fabrics, artwork, paint, and interior finishes can still fade over time depending on sunlight, visible light, UV exposure, material sensitivity, and interior lighting.

For more information, review Cardinal’s Fading bulletin.

LoE glass packages, laminated glass, and lower UV transmission glass configurations may help reduce fading potential. Cardinal’s fading bulletin compares UV transmission and ISO-CIE damage function values for clear glass, LoE glass, LoE-i89 combinations, laminated configurations, and triple pane glass options.

For high UV reduction, Quad LoE-452+, LoE³-340+, LoE³-366, and laminated glass options may be worth reviewing depending on the full product requirements.

Glass cleaning should be done carefully to avoid scratching or damaging the glass or coatings. Exterior coatings, jobsite debris, abrasive materials, metal blades, and improper tools can damage glass surfaces.

For detailed cleaning guidance, review Cardinal’s Glass Cleaning Recommendations bulletin.

Preserve film is a protective film used on exposed glass surfaces of selected Cardinal insulating glass units. It is intended to help protect glass surfaces during shipping, window fabrication, handling, installation, and jobsite exposure.

For more information, review Cardinal’s Preserve Film bulletin.

Cardinal recommends using a light spray of water on the unit before installation to help discharge static buildup. This is not always required, but it can be a useful field practice when customers notice static from Preserve film.

Glass breakage can feel random because the actual cause is not always visible after the glass breaks. Glass may break from impact, edge damage, scratches, chips, thermal stress, sash or frame racking, pressure differences, installation pressure, setting block issues, or other field conditions.

In patio doors, sidelites, large fixed units, and other larger glass openings, breakage may be more noticeable because the glass area is larger and the glass is often tempered for safety. Tempered glass is designed to break into many small pieces rather than large sharp shards, so when it breaks it can appear sudden and complete.

For more technical detail, review Cardinal’s Insulating Glass Breakage bulletin.

Tempered glass can sometimes appear to break by itself, especially when no one sees an impact or obvious cause. This is uncommon, but possible. Tempered glass stores internal stress from the tempering process, and breakage can occur if the glass has edge damage, a surface flaw, installation pressure, thermal stress, frame pressure, or another stress point.

In rare cases, fully tempered glass may also experience spontaneous breakage related to nickel sulfide inclusions. This type of breakage is uncommon, but it is one reason tempered glass breakage can seem unexplained to a homeowner or building owner.

Tempered glass is still used because it is safety glass. When it breaks, it is designed to fracture into many small pieces instead of large sharp shards.

Patio doors and sidelites often require tempered safety glass because of their size, location, and use near doors or walking areas. If tempered glass breaks, it usually breaks across the entire lite at once, which can make the failure look sudden or unexplained.

Possible causes include prior impact, edge damage, pressure from the frame or sash, movement in the opening, thermal stress, installation pressure, contact with hard objects, or rare spontaneous tempered glass breakage. A broken unit should be reviewed before assuming the cause.

Thermal breakage can occur when there is a large temperature difference between the edge and center of the glass. Solar absorption, shading patterns, indoor blinds or draperies, overhangs, glass coating, tint, frame design, glass edge quality, and outdoor temperature can all affect thermal stress.

For more information, review Cardinal’s Thermal Breakage Prediction bulletin and Insulating Glass Breakage bulletin.

Not necessarily. Glass can break for many reasons that are not related to a manufacturing defect. Impact, edge damage, jobsite handling, frame pressure, installation conditions, thermal stress, pressure differences, and field conditions can all cause glass breakage.

Because breakage can have multiple causes, the glass, sash, frame, installation, setting blocks, surrounding conditions, and break pattern should be reviewed where possible.

Yes. Obscure glass options may be available depending on the glass type, size, thickness, LoE coating, safety glass requirements, spacer configuration, and final application.

Obscure glass is commonly used in bathrooms, entries, side yards, offices, utility areas, and other locations where privacy is needed while still allowing light into the room.

Yes. Tinted glass may be reviewed where the glass requires a specific color appearance, glare reduction, or additional solar control. Availability depends on the selected glass package and final application.

Yes. Tempered glass may be available and may be required by code, application, size, location, or product requirements.

The ordering party, contractor, installer, architect, builder, or project team is responsible for confirming safety glass requirements before ordering.

Heat-strengthened glass is glass that has been heat treated to provide added strength compared with annealed glass, but it is not the same as fully tempered safety glass. It may be reviewed where additional resistance to thermal stress or product conditions is needed.

Heat-strengthened glass should be reviewed based on application, code requirements, glass size, coating selection, and product conditions.

Yes. Laminated glass may be reviewed for safety, sound control, security considerations, impact considerations, UV reduction, or other product-specific glass requirements.

For laminated glass technical topics, review Cardinal’s laminated glass technical service bulletins.

Glass package selection can affect sound performance. Laminated glass, glass thickness, airspace, dual pane construction, triple pane construction, and full window or door system design can all affect acoustical performance.

For technical reference, review Cardinal’s Glass Acoustical Information bulletin listing.

GBG means grilles between the glass. These are internal grille bars sealed inside the insulating glass unit to create a divided-lite appearance without exterior removable grilles.

Yes. Grilles between the glass are available in multiple profiles, sizes, patterns, and color combinations. Grille options should be confirmed before ordering because they can affect glass configuration, airspace, argon fill percentage, U-Factor, availability, and lead time.

For technical information, review Cardinal’s Use of Internal Grilles bulletin.

In some conditions, internal grilles may briefly contact the glass surface and create a rattling noise, especially in large glass units, patio doors, or units exposed to movement or pressure changes. Grille selection, glass thickness, airspace, and application should be reviewed before ordering.

Yes. Grille options vary by Casco product. For Casco manufactured products, SDL, GBG, removable grille, and internal grille availability must be reviewed on the specific product page.

For example, Casco Double-Hung Replacement Kits with SDL use applied exterior and interior grilles only and do not use an internal between-the-glass spacer. Review Replacement Casement Sashes, Double-Hung Replacement Kits, Aluminum-Clad Casement Windows, and Aluminum-Clad Double-Hung Windows for product-specific grille information.

Unless specified otherwise, insulating glass purchased from Casco typically includes Cardinal’s standard XL Edge spacer. Other spacer and spacer-finish options may be reviewed where applicable.

Cardinal stainless steel spacer systems may include natural and painted finish options where available. XL Edge is Cardinal’s established stainless steel spacer system, and Endur is Cardinal’s newer-generation warm-edge spacer option compared with XL Edge.

XL Edge and Endur stainless spacer insulating glass units include Cardinal’s applicable 20-year warranty terms where applicable. Warranty coverage depends on the specific glass product, configuration, installation, application, and Cardinal warranty terms.

For additional spacer information, review Cardinal’s XL Edge and Endur IG bulletin listing.

Spacer finish may be reviewed where the spacer will be visible in the final application. Available spacer finishes depend on the spacer type, Cardinal offering, and product configuration.

Yes. Custom-shaped glass, arched glass, radius glass, concave radius glass, and template glass may be reviewed where the opening requires a non-rectangular IG unit.

For historic, arched, radius, or restoration opening needs, related Casco solutions may include Historic Home Solutions, Architect-Specified Windows & Doors, and Storm Windows as a separate exterior protection and comfort option.

For many shaped glass orders, Casco can generate a CAD file for approval after receiving the required shape and dimension information. This helps reduce miscommunication before production.

No. Some shaped glass can be ordered using a Cardinal shape number and complete dimensions. Other shapes may require a physical template or additional review depending on the shape and required accuracy.

Required information may include shape number, width, height, radius, leg height, overall IG thickness, glass type, LoE coating, safety glass requirements, spacer, quantity, and final application.  Review the common shape reference or the full Cardinal glass shape catalog for additional information.

Yes. Size limits depend on the glass thickness, glass type, coating, shape, safety glass requirements, spacer, overall IG thickness, and final application. Oversized units, shaped units, laminated units, tempered units, and specialty glass may require additional review.

For technical reference, review Cardinal’s Size Limit Guidelines bulletin listing.

Required information may include exact width, exact height, overall IG thickness, glass type, LoE coating, safety glass requirements, spacer, grille pattern, shape, quantity, and final application.

Final dimensions, glass selection, code requirements, safety glass requirements, and application suitability are the responsibility of the ordering party, contractor, installer, builder, architect, or project team.

Casco insulating glass orders are placed through CASCOPRO or PROConnect. These systems are used for quoting and ordering made-to-order Cardinal insulating glass units and related glass options. A Casco account is required to log in. New customers can start by completing the dealer / PROConnect request form.

CASCOPRO and PROConnect can help streamline glass ordering for approved dealers, glass shops, contractors, and trade customers who regularly quote or order Cardinal insulating glass through Casco.

Glass shops and glazing contractors may be able to use CASCOPRO or PROConnect to quote insulating glass units. These tools include quote support for tempered glass, Cardinal LoE offerings, obscure glass options, grilles / muntins, and other glass configurations.

Open CASCOPRO

Capillary tubes and breather tubes may be reviewed for certain pressure equalization or altitude-related conditions. These are product-specific details and should be reviewed before ordering when glass will be shipped, installed, or used in conditions where pressure difference may be a concern.

For more information, review Cardinal’s Capillary Tubes and Breather Tubes bulletin.

Casco delivers insulating glass to the general Chicagoland area, including glass shops, contractor locations, dealer locations, and customer locations where delivery is available.  Additional delivery areas may be reviewed as Casco expands glass distribution. New customers should provide business details, delivery requirements, and estimated glass volume through the dealer / PROConnect request form.

Delivery requirements should be reviewed based on glass size, glass quantity, route availability, handling requirements, site access, and current delivery schedule.

Pickup may be available depending on the glass order, size, handling requirements, and current schedule. Pickup should be confirmed before ordering or sending a customer, installer, or contractor to our facility.

Casco only services and installs into Casco brand windows. For non-Casco glass repair, glazing, or window service needs, installation should be completed by a qualified local glass professional, glazing contractor, window repair company, dealer, or installer.

The receiving party should inspect the glass at delivery or pickup, confirm the size and order details, check for visible damage, and make sure the glass matches the order before installation.

Insulating glass should be stored vertically in a safe, stable, protected location with proper edge protection. Glass should not be stored flat or laid down before installation.

Insulating glass should also be protected from jobsite debris, standing water, direct edge damage, heavy impact, unsafe handling conditions, and exposure that could damage glass surfaces, coatings, spacers, edges, or Preserve film.

Project teams should follow any Cardinal or Casco handling instructions for the specific glass type, coating, Preserve film, specialty glass, or fabricated IG unit being used.

Yes. Casco supplies made-to-order Cardinal insulating glass units for glass shops, glazing contractors, contractors, dealers, lumberyards, builders, remodelers, and other trade customers.

Glazing contractors can also review Casco’s Glazing Contractor Solutions page for related product categories and supply opportunities.

Yes. Dealers and lumberyards may be able to source Cardinal insulating glass through Casco for replacement glass, contractor support, residential repair work, sash repair, restoration work, and custom glass applications.

New or prospective dealers can review Casco’s new dealer / PROConnect request page.

Yes. Repeated glass units are common for sash repair, restoration work, property maintenance, residential replacement glass, dealer work, glazing contractor work, and larger replacement glass packages.

For repeat work, provide sizes, quantities, glass type, LoE coating, spacer, grille details, safety glass requirements, shape details, delivery location, and whether the order is a one-time order, phased order, or recurring need.

Trade customers can also review Glazing Contractor Solutions, Historic Home Solutions, and new dealer / PROConnect information.

Casco insulating glass is used by homeowners working through dealers or contractors, glass shops, glazing contractors, remodelers, builders, dealers, lumberyards, restoration contractors, property managers, and customers needing made-to-order Cardinal insulating glass units for repair, replacement, sash, window, door, restoration, or residential specialty glass needs.

Cardinal technical glass information can be reviewed through Cardinal’s Technical Glass Guide and technical service bulletins.

Cardinal Technical Glass Guide

Cardinal Technical Service Bulletins

Cardinal glass performance data can be reviewed through Cardinal’s glass performance reference tools. These references are useful when comparing LoE coatings, visible light, U-Factor, SHGC, UV transmission, and related performance values.

Cardinal Insulating Glass Unit Performance Data

Cardinal Glass Performance Data

Cardinal provides product information for Quad LoE-452+, including visible light, SHGC, UV blocking, solar control, Neat+ coating information, and related performance details.

Cardinal Quad LoE-452+ Information

CLiC switchable privacy glass information can be reviewed on Casco’s CLiC product page. This page includes general applications, privacy glass use cases, planning considerations, and related resources.

Casco CLiC Switchable Privacy Glass Page

The National Fenestration Rating Council provides additional information about fenestration performance ratings and terms such as U-Factor, SHGC, and Visible Transmittance.

National Fenestration Rating Council

Casco glass ordering is handled through CASCOPRO or PROConnect. Supporting resources include the Casco Resources page, field dimension reference chart, Cardinal shape catalog, Cardinal grille reference chart, and CLiC planning resources.

Open CASCOPRO

Request Dealer / PROConnect Information

Casco Resources Page

Field Dimension Reference Chart

Cardinal Shape Catalog

Cardinal Grille Reference Chart

CLiC Switchable Privacy Glass Planning Resources

Cardinal insulating glass supplied through Casco gives customers access to made-to-order IG units, durable spacer systems, low seal-failure-rate glass construction, multiple LoE coating options, Quad LoE-452+ with Neat+, CLiC switchable privacy glass, obscure glass, safety glass, grilles, spacer options, shapes, and custom glass configurations.

Casco supports homeowners working through dealers or contractors, glass shops, glazing contractors, remodelers, builders, dealers, lumberyards, restoration contractors, property managers, and customers needing custom Cardinal insulating glass units for repair, replacement, sash, window, door, restoration, or residential specialty glass needs.

For broader residential repair, replacement, and restoration planning, review related Casco solutions including Aluminum-Clad Windows, Replacement Casement Sashes, Double-Hung Replacement Kits, Storm Windows, CLiC Switchable Privacy Glass, Historic Home Solutions, and Glazing Contractor Solutions.

Additional insulating glass resources: Cardinal Technical Glass Guide, Cardinal Technical Service Bulletins, Cardinal IGU Performance Data, Cardinal Fading Bulletin, CLiC Switchable Privacy Glass, Casco Resources, CASCOPRO, PROConnect / Dealer Information, Cardinal Shape Catalog, and Cardinal Grille Reference Chart.