Engineered with asymmetric laminated acoustic glass, PA66 thermal breaks, and patented multi-point compression seals for global commercial and residential architecture.
Eliminate Low-Frequency Traffic & Aviation Noise.
Asymmetric glass damping prevents acoustic resonance across critical 100 Hz - 3150 Hz frequency spectra.
180,000 m² Facility. 18,000+ Completed Projects.
25+ years of engineering mastery from shop drawings to on-site acoustic isolation validation.
Guangdong Dejiyoupin Doors and Windows Co., Ltd. approaches soundproofing not as a singular feature, but as a multidisciplinary acoustic engineering discipline. Urban noise pollution—originating from arterial traffic, light rail networks, heavy freight, and low-altitude aviation—operates across wide-band sound pressure levels, most critically within the challenging low-frequency range of 63 Hz to 250 Hz.
Standard architectural windows routinely fail acoustic targets due to the fundamental law of resonance: symmetric double-pane assemblies (e.g., 4mm + 12A + 4mm) vibrate in sympathetic unison, generating a coincidence frequency dip that transmits structural sound waves directly indoors. Our engineered soundproof aluminum windows decouple this acoustic energy through three proprietary engineering pillars:
1. Asymmetric Multi-Layer Mass Law Glazing: By laminating diverse glass plies (such as 6mm exterior float + 0.76mm acoustic PVB interlayer + 4mm float + 16A warm-edge argon cavity + 8mm interior laminated glass), our systems shatter sound frequency harmonics and eliminate acoustic bridging.
2. Continuous Co-Extruded Multi-Chamber EPDM Gaskets: Sound travels through air. Our three-tier continuous automotive-grade vulcanized EPDM seals establish an airtight envelope that achieves Class 4 Air Infiltration (less than 0.1 cfm/ft²), blocking high-frequency noise leakage completely.
3. High-Density Polyamide (PA66 GF25) Thermal & Acoustic Dampers: Heavy multi-chamber thermal breaks break the metallic vibration path of extruded 6063-T6 aluminum, deadening vibrational resonance transfer before it conducts through structural rough openings.
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Tailored structural configurations engineered to neutralize environmental decibel exposure without compromising thermal efficiency or architectural minimalism.
Engineered with dual mechanical compression sash closures, multi-chamber PA66 thermal breaks, and triple-sealed perimeter gaskets. Offers peak acoustic isolation for airport flight paths and urban expressways.
Eliminating operable sash joints altogether, these fixed panoramic panels support heavy asymmetric laminated glass configurations up to 48mm thick for zero-vibration viewing walls.
Combines multi-directional ventilation flexibility with German-engineered all-around locking cams that clamp the sash into three continuous compression gaskets for certified airtight and sound-damped sealing.
Overcoming conventional sliding window leakage via an engineered lift-drop mechanism that compresses solid continuous perimeter seals when engaged, locking out highway rumble.
Maximum Sound Transmission Class (STC)
Ultra-low air infiltration rate
Proprietary structural patents
Acoustic perimeter containment
The global construction market is experiencing a profound paradigm shift driven by urban densification, strict environmental noise legislation, and health-focused architectural mandates.
Global procurement teams no longer compromise between acoustic isolation and thermal ratings. Historically, heavy acoustic windows sacrificed U-factors. Modern specifications mandate unified systems combining STC ≥ 40 with NFRC U-factors ≤ 0.20, pushing the adoption of triple-glazed assemblies featuring warm-edge spacers, low-conductive argon cavities, and acoustic PVB layers.
As metropolitan hubs focus on transit-oriented developments (TODs) adjacent to highways, subway hubs, and rail corridors, municipal building codes enforce stringent exterior-to-interior noise reduction thresholds (OITC ratings). Commercial developers are moving away from decentralized window suppliers in favor of turnkey manufacturers capable of supplying tested, stamped shop drawings.
The acoustic industry's most significant frontier is the integration of tempered Vacuum Insulated Glass. By creating an absolute vacuum (0.1 Pa) between two glass sheets, physical sound waves lose their air transmission medium entirely. Combined with an exterior acoustic laminated ply, compact VIG systems achieve STC 45+ in profiles under 30mm thick.
Next-generation aluminum profiles engineered by Guangdong Dejiyoupin incorporate viscoelastic dampening gel compounds within the internal aluminum chambers. These dampening polymers absorb structural harmonics and mechanical building drift, mitigating low-frequency drone before sound waves energize the interior frame face.
STC evaluates speech and mid-to-high frequency airborne sounds. For exterior highway, railway, and diesel bus noise, verify the OITC (Outdoor-Indoor Transmission Class), which specifically accounts for low-frequency decibel impacts down to 80 Hz.
Never specify symmetric dual glass (e.g., 6mm + 6mm). Equal thickness creates severe acoustic resonance coincidence dips. Always combine mismatched thicknesses (e.g., 8mm + 5mm) with an acoustic polyvinyl butyral (PVB) or SentryGlas interlayer.
Sliding brush seals leak air and noise. Commercial acoustic windows must feature continuous vulcanized EPDM compression seals backed by multi-point mechanical lock hardware to preserve perimeter acoustic integrity.
Acoustic performance is defined by the weakest component. Demand full-scale window test reports conducted according to ASTM E90 and ASTM E413 rather than small sample center-of-glass test calculations.
| Application Grade | Glass Configuration (Glazing Package) | STC | OITC | U-Factor (NFRC) |
|---|---|---|---|---|
| Standard Urban Residential | 6mm + 12A Argon + 4mm Low-E Warm Edge | STC 35 | 29 | 0.24 Btu/hr·ft²·°F |
| Arterial Highway Acoustic | 6mm + 16A Argon + (4mm + 0.76 Acoustic PVB + 4mm) | STC 39 | 32 | 0.22 Btu/hr·ft²·°F |
| High-Density Downtown & Rail | (5mm + 1.14 Acoustic PVB + 5mm) + 16A + 8mm Low-E | STC 44 | 36 | 0.19 Btu/hr·ft²·°F |
| Airport Flight Path & Recording | (6mm + 1.52 Acoustic PVB + 6mm) + 20A + (5mm + 0.76 PVB + 5mm) | STC 48+ | 39 | 0.18 Btu/hr·ft²·°F |
| Ultra-Acoustic Architectural VIG | 8.3mm Tempered Vacuum Glass + 12A + (6mm + Acoustic PVB + 6mm) | STC 51 | 42 | 0.12 Btu/hr·ft²·°F |
All ratings tested in accordance with ASTM E90 and rated per ASTM E413 / ASTM E1332 standards. Thermal values tested under NFRC 100/200 procedures. Custom acoustic schedules modeled via finite element analysis upon inquiry.
From luxury urban condominiums overlooking busy freeways to prestigious hotel developments and private estates, Guangdong Dejiyoupin Doors and Windows Co., Ltd. delivers acoustic excellence backed by on-site measurement, structural finite element modeling, and certified test data.
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Guangdong Dejiyoupin Doors and Windows Co., Ltd. ensures every opening matches stringent acoustic and structural engineering criteria.
01Engineers evaluate noise spectra, site surroundings, and opening sizes.
02Tailored asymmetric glass layups and thermal damping profiles are selected.
03Comprehensive submittal with target STC/OITC ratings and NFRC simulations.
04Imperially dimensioned profiles, frame sections, and anchor details approved.
05Dedicated CNC machining and automated glass lamination scheduling.
06Zero-tolerance opening checks avoid installation air leaks on the jobsite.
07Airtightness checks, corner weld checks, and seaworthy fumigated steel-frame crating.
08Acoustic perimeter sealant detailing guidance and full on-site engineering oversight.
For more than 25 years, Guangdong Dejiyoupin Doors and Windows Co., Ltd. has stood at the pinnacle of high-end fenestration engineering. Recognized as a "China Famous Brand" by Xinhua News Agency, we provide end-to-end manufacturing security for global projects:
Our 180,000 m² smart production center delivers over 1,000,000 m² annually, safeguarding demanding multi-unit construction schedules.
Including our exclusive four-side six-point patented lock, ensuring unparalleled airtightness, forced-entry resistance, and acoustic compression.
Every extruded profile, corner crimp, insulated acoustic glass unit, and gasket is tested under strict ISO 9001:2015 protocol before export.
Our acoustic systems and thermal break windows safeguard residences, five-star hospitality towers, and commercial complexes across the United States, Canada, Mexico, Europe, and Australia.
Canada
USA
Mexico
Foshan HQOur acoustic fenestration lines satisfy stringent international criteria for acoustic decibel attenuation, structural wind loads, forced-entry resistance, and thermal insulation.
Technical answers to the most frequently queried acoustic, manufacturing, and international procurement concerns.
Send your elevation schedules, decibel targets, and rough openings. Our engineering department delivers shop drawings and acoustic layups.
Contact Us Collaborate directly with the engineers at Guangdong Dejiyoupin Doors and Windows Co., Ltd. Submit your project requirements to [email protected] or start a conversation now.