Aluminum Window Systems for Comfort and Long-Term Reliability
Aluminum Casement Windows
Casement windows open outward to bring in fresh air and clear views.
At LIKI, our aluminum casement window systems are designed to stay smooth, tight, and reliable over time—whether using thermally broken or non-thermal aluminum profiles, depending on climate and project needs.
Explore our Casement windows
LIKI aluminum casement window systems are built as distinct performance platforms, offering different thermal and structural configurations to match climate conditions, building envelopes, and long-term performance goals.
50 Series: Commercial Outward Casement Window System
Engineer cost-controlled operable ventilation through a non-thermal outward casement system designed for repeatable commercial applications.
- ●System Adaptability: Maintain a compact 2-inch system depth compatible with concrete and steel structures across standardized projects.
- ●Load-Controlled Hardware: Match sash size to friction-stay or hinge strategies while confining forces within the primary load-bearing chamber.
- ●Verified Performance: Evaluated to ASTM E330 with structural resistance up to DP 94 PSF and EPDM sealing continuity.
60 Series: Commercial Thermal Outward Casement Window System
Engineer code-aligned energy performance through a thermally broken outward casement system for mid-rise commercial buildings.
- ●System Adaptability: Utilize a 2.4-inch thermal frame depth with Technoform® Thermal Breaks for standard wall conditions.
- ●Load-Controlled Hardware: Support full ventilation opening through balanced friction-stay or hinge configurations matched to sash weight.
- ●Verified Performance: Evaluated to ASTM E330 with structural resistance up to DP 63 PSF and EPDM sealing continuity.
65 Series: Enhanced Thermal Outward Casement Window System
Engineer improved energy efficiency through an outward casement platform with expanded thermal separation for mid-rise applications.
- ●System Adaptability: Apply a deepened 2.6-inch thermal frame to accommodate enhanced insulation requirements.
- ●Load-Controlled Hardware: Match larger sash sizes to friction-stay or heavy-duty hinge strategies within a defined load path.
- ●Verified Performance: Evaluated to ASTM E330 with structural resistance up to DP 63 PSF using Technoform® Thermal Breaks.
70 Series: High-Rise Flat-Aligned Outward Casement Window System
Engineer high-rise operability through a thermally broken outward casement system designed for interior-side glass servicing.
- ●System Adaptability: Maintain flat-aligned frame-and-sash geometry on a 2.7-inch system depth for high-rise façades.
- ●Load-Controlled Hardware: Coordinate hinge or friction-stay hardware with sash weight while preserving interior glazing access.
- ●Verified Performance: Evaluated to ASTM E283 / E330 / E331 with EPDM sealing continuity for high-rise exposure.
100-95 Series: Structural Thermal Outward Casement Window System
Engineer large-format operable ventilation through a structurally reinforced thermal casement system for exposed mid- to high-rise façades.
- ●System Adaptability: Deploy a reinforced 4-inch thermal system depth to support oversized outward-opening sashes.
- ●Load-Controlled Hardware: Match heavy-duty hinge or friction-stay strategies to sash weight within a defined structural load path.
- ●Verified Performance: Evaluated to ASTM E330 with Technoform® Thermal Breaks and dual EPDM sealing strategy.
110-50 Series: Integrated Protective Outward Casement Window System
Engineer secure operable openings through a structurally integrated outward casement system that combines thermal performance and protective functions within a unified load-bearing frame.
- ●System Adaptability: Utilize a unified 4.33-inch system depth to accommodate thermal glazing and integrated protective elements within one structural frame.
- ●Load-Controlled Hardware: Coordinate sash operation with Roto® or GU® hardware while isolating protective components from primary weather sealing paths.
- ●Verified Performance: Evaluated to ASTM E330 with structural resistance up to DP 94 PSF, supported by a triple EPDM sealing system and wet-glazed assembly.
138-60 Series: Security-Integrated Outward Casement Window System
Engineer secure operable ventilation through an outward casement system that integrates intrusion resistance at the structural level without external protection elements.
- ● System Adaptability: Maintain a unified 5.43-inch structural frame depth accommodating both operable sash and integrated security components within one system.
- ● Load-Controlled Hardware: Separate operational and protective load paths while confining forces within the primary load-bearing chamber via a defined Glazing Stop.
- ● Verified Performance: Evaluated to ASTM E283 / E330 / E331, supported by Technoform® Thermal Breaks, wet-glazed assembly using Wacker®, and a triple EPDM sealing system.
130ZKW Series: Flagship Slim-Profile Outward Casement Window System
Engineer energy-efficient operable ventilation through a slim-profile outward casement system aligned with NFRC-oriented performance configurations.
- ●System Adaptability: Maintain a unified slim-frame platform suitable for mid- and high-rise façades without fragmenting into additional system variants.
- ●Load-Controlled Hardware: Coordinate friction-stay or hinge strategies with sash weight while confining forces within the primary load-bearing chamber.
- ●Verified Performance: Evaluated to ASTM E283 / E330 / E331 within applicable NFRC scopes, supported by Technoform® Thermal Breaks and a triple EPDM sealing system.
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Why choose Casement windows
Aluminum casement window systems are often chosen for their tight seal, smooth operation, and long-term stability.
By combining aluminum strength with thermally broken or non-thermal system designs, LIKI offers solutions that adapt to different climates without changing the core window concept.
Tighter Seal
Easy Everyday Use
Built to Last
View the stunning performance of Casement windows
Casement Window systems are used in a wide variety of real homes and mixed-use buildings, showing how the same window concept can fit different architectural styles, spaces, and everyday living needs.
Casement windows Demonstration Video List
Watch how LIKI casement windows are made, installed, and used in real projects to better understand how they look, move, and perform in everyday situations.
Get Answers to Your Questions
Casement windows FAQs answered
A casement window is a side-hinged window that opens outward like a door, usually operated with a crank or lever, giving you full fresh-air ventilation and a clear view when open.
Casement windows provide excellent ventilation, unobstructed views, and when closed they seal tightly against the frame to help reduce drafts and improve energy efficiency.
Yes. Because they seal firmly against the frame when closed, casement windows can reduce air leakage and help keep indoor temperatures stable—which may lower heating and cooling costs.
Casement windows swing open outward and offer more ventilation and tighter seals than sliding or double-hung windows, though they need clearance to open and may not fit tight pathways.
They work well above kitchen sinks, in bathrooms for airflow, in living spaces with views, and in any room where you want maximum fresh air or natural light.
Yes. Most casement windows use multi-point locks that bolt the sash tightly into the frame, making them harder to pry open than many other window types.
Casement windows are generally low-maintenance; simple cleaning of the glass and frame and occasional lubrication of the crank mechanism help keep them working smoothly.
Typically they tend to cost more than simple sliding or double-hung windows because of the hardware and sealing system, but the energy and ventilation benefits often make up for the difference.
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