Inward Opening Windows are a system window product designed to open toward the interior. The window sash utilizes interior-side hardware to facilitate opening, tilt-in, or micro-ventilation operations, making it suitable for window openings in residential homes, villas, apartments, hotels, and office spaces. Featuring thermally broken aluminum profiles, insulated glazing, micro-ventilation sashes, and integrated insect screens, this system effectively meets the requirements of architectural projects regarding natural lighting, ventilation, and interior user convenience.
| Item | Specification |
| Product Name | 90ps Double Internal Opening Micro Ventilation System Window |
| Keyword | Inward Opening Windows |
| Frame Width | 90mm |
| Sash Visible Width | 72mm |
| Profile Thickness | 1.8mm |
| Glass Configuration | 5mm+27A+5mm |
| Insulation Strip | PA66GF25 Nylon Insulation Strip |
| Hardware | CMECH Hardware |
| Opening Type | Tilt And Turn Opening, Inward Swing Opening, Double Sash Connected Inward Opening |
| Screen System | Connected Screen System |
| Optional Color | Grey, Coffee Brown |
These Inward Opening Windows feature a micro-ventilation mechanism that allows for air exchange while the sash is opened at a slight angle, thereby minimizing the wind impact typically associated with opening windows wide. For spaces such as bedrooms, children's rooms, and studies, this micro-ventilation mode enhances safety and security while maintaining airflow, making it an ideal choice for bulk procurement in high-end residential developments and high-rise projects.
The Inward Opening Windows utilize a vertical isotherm structure, wherein the thermal break strips and sealing strips are aligned along a single vertical axis; this design significantly enhances the window's overall thermal insulation and soundproofing performance. The 90mm frame profile—integrated with PA66GF25 nylon thermal break strips—effectively reduces heat conduction through the aluminum frame. The 5mm + 27A + 5mm insulated glass configuration is well-suited for regions experiencing cold winters and hot summers, helping projects maintain superior indoor temperature stability.
These Inward Opening Windows feature a triple-seal design, utilizing EPDM composite sealing strips to deliver superior resistance against wind, dust, and rain. The "inward-opening and tilt-turn" mechanism ensures a tight, compressive seal when closed, making it an excellent choice for projects involving street-facing residences, urban apartments, and high-rise buildings by effectively preventing air leakage through gaps, noise intrusion, and rainwater seepage.
The Inward Opening Windows come equipped with an integrated insect screen system, allowing for seamless operation and unified management of both the window sash and the screen. For regions with high insect populations (such as the South), lower-floor residences, lakeside properties, and apartment complexes, the inclusion of insect screens significantly enhances daily living convenience. The 72mm visible sash width minimizes the visual obstruction caused by the frame profile, thereby maximizing natural indoor lighting and maintaining a clean, minimalist aesthetic.
The product supports various opening modes—including inward casement, tilt-turn, and combined dual-inward opening configurations—allowing for flexible selection based on the specific window opening location and user preferences. With a profile wall thickness of 1.8mm, the design strikes an optimal balance between structural stability during fabrication and cost-efficiency for large-scale projects, making it suitable for bulk residential developments, hotel guest rooms, and office spaces. HEHEJIAN offers customized project-based manufacturing services, tailoring dimensions, colors, glass specifications, and hardware solutions to meet specific project requirements.
High-rise residential buildings impose stringent requirements regarding window safety, airtightness, and ventilation management. Our Inward-Opening Windows are suitable for installation in living rooms, bedrooms, studies, and similar areas. The inward-tilt micro-ventilation mode minimizes the risks associated with fully opening windows during windy weather, while integrated insect screens enhance convenience for daily use.
Urban apartments typically feature relatively compact spaces, requiring windows that strike a balance between ventilation, sound insulation, and ease of interior maintenance. These Inward-Opening Windows are well-suited for bedrooms, enclosed balconies, studies, and similar zones. The 5mm + 27A + 5mm insulated glass configuration effectively reduces external noise interference, while the inward-opening structure facilitates easy cleaning and routine inspections by residents from within the room.
Premium residences prioritize aesthetic consistency, user comfort, and efficient long-term maintenance. Featuring a 90mm frame paired with a 72mm sash face width, the design offers clean visual proportions that complement modern residential facades. Available in colors such as gray and coffee brown, these windows can be matched to various interior design styles, making them an ideal choice for bulk procurement by property developers, contractors, and window/door project specialists.
Hotel guest rooms require windows and doors that deliver superior sound insulation, thermal efficiency, security, and ease of maintenance. These Inward-Opening Windows are suitable for use in standard guest rooms, suites, and corridor lighting windows. The inward-tilt micro-ventilation mode facilitates continuous air circulation within guest rooms, while the integration of CMECH hardware and a triple-seal structure helps minimize the burden of frequent maintenance in the long run.
Office environments demand consistent natural lighting, adequate ventilation, and effective sound insulation. These Inward-Opening Windows are suitable for installation in offices, conference rooms, reception areas, and public corridors. The vertical isotherm structure—combined with insulated glass—helps enhance indoor comfort levels, making these windows an excellent choice for commercial construction projects.
