Explore our export-grade fenestration solutions manufactured with fusion-welded virgin vinyl profiles, thermal break aluminum, and advanced LoĒ³-366 insulating glass units.
Engineered to meet the stringent structural and thermal standards mandated by the International Energy Conservation Code (IECC) and California Title 24.
Fixed windows (frequently designated as picture windows or non-operable fenestration units) represent the structural backbone of high-performance architectural building envelopes across the United States. Unlike operable sashes that rely on mechanical weatherstripping and movable hinges, fixed window assemblies are permanently sealed within their frame matrices. This fundamental design attribute eliminates air infiltration paths, rendering fixed windows the gold standard for achieving near-zero thermal leakage in passive building designs.
As US energy codes—such as ASHRAE 90.1, IECC 2021/2024, and California's Title 24 Building Energy Efficiency Standards—tighten baseline performance requirements, architects and commercial developers are increasingly relying on specialized fixed fenestration to balance expansive glass surface areas with strict Solar Heat Gain Coefficient (SHGC) limits.
Operational window units typically exhibit air infiltration rates between 0.10 and 0.30 cfm/ft² under standard ASTM E283 test conditions. In contrast, precision fusion-welded fixed vinyl and thermal break aluminum fixed windows achieve air leakage rates below 0.01 cfm/ft², delivering a 90%+ improvement in envelope airtightness.
Combining proprietary extrusion technology, fusion-welding automation, and factory-direct B2B supply chain consolidation.
We extrude custom window profiles using strictly 100% virgin unplasticized PVC (uPVC) resin. We never blend reground scrap or recycled fillers into structural profiles, ensuring total color stability, resistance to UV chalking, and long-term impact strength in high-sunlight regions like Florida and Arizona.
Our computerized four-point welding heads heat frame miter joints simultaneously, fusing vinyl profile walls into a singular, continuous material matrix. Unlike mechanically screwed aluminum or timber frames that rely on corner gaskets, welded seams never separate, shrink, or leak water under wind load pressures.
Equipped with industry-leading dual and triple-pane insulating units featuring spectrally selective triple-silver Low-E coatings (LoĒ³-366). This reflects 95% of invisible solar heat while transmitting up to 65% of visible daylight, drastically reducing HVAC air conditioning loads in summer months.
Every commercial order is custom-fabricated to exact rough opening dimensions down to 1/8-inch tolerances. Whether supplying replacement retrofits with flush flange options or new nail-fin installations, our automated CNC cutting saws eliminate site trim modifications and field remakes.
Exporting to US ports requires rigorous transit protection. All window shipments are wrapped in heavy-duty protective film, padded with high-density corner foam, and securely loaded inside reinforced wooden crates or custom steel A-frames designed for containerized ocean freight and flatbed distribution.
We stand behind our manufacturing quality with a comprehensive Limited Lifetime Warranty covering frame extrusion integrity, corner weld strength, hardware durability, and IGU hermetic seal performance against stress cracking and fogging.
Comparative technical analysis for architectural specifiers and structural engineers.
| Window System Type | Frame Material Options | Thermal U-Factor Range | SHGC Range | Air Infiltration (cfm/ft²) | Max Design Pressure (DP) |
|---|---|---|---|---|---|
| Architectural Fixed Picture | Virgin Vinyl / Thermal Aluminum | 0.18 – 0.26 | 0.18 – 0.40 | < 0.01 (Airtight) | DP-60 to DP-90 |
| Crank Casement Window | Thermal Break Aluminum | 0.24 – 0.30 | 0.22 – 0.38 | < 0.05 | DP-50 to DP-70 |
| Double Hung Sash Window | Extruded Vinyl / PVC | 0.27 – 0.34 | 0.25 – 0.42 | 0.12 – 0.20 | DP-35 to DP-50 |
| Horizontal Sliding Window | Extruded Vinyl / PVC | 0.28 – 0.35 | 0.26 – 0.45 | 0.15 – 0.25 | DP-35 to DP-45 |
| Hopper / Awning Window | Thermal Aluminum / Vinyl | 0.25 – 0.32 | 0.22 – 0.38 | < 0.08 | DP-45 to DP-60 |
*Data based on NFRC 100/200 test procedures using standard dual-pane Low-E argon filled IGU configurations. Final certified values depend on total glass build-up and frame series selected.
Tailoring fixed window configurations to specific US climate zones and structural demand profiles.
Primary Requirement: Solar Heat Gain Reduction & UV Filtration.
In southern climates, intense solar radiation drives high air-conditioning energy consumption. Specifying fixed architectural windows with LoĒ³-366 glass achieves an SHGC under 0.22, cutting direct solar heat admission by over 70% while maintaining crisp interior daylighting without dark tinted films.
Primary Requirement: U-Factor Minimization & Thermal Retention.
In IECC Climate Zones 5 through 7, winter heat loss is the predominant cost factor. Our triple-pane argon-filled fixed vinyl window series achieves U-factors as low as 0.18 BTU/h·ft²·°F, preventing interior edge condensation and cold radiant draft zones near living room picture windows.
Primary Requirement: Structural Wind Load & Salt Air Resistance.
Coastal construction demands heavy-wall extruded vinyl or anodized aluminum fixed units glazed with PVB laminated safety glass. Our coastal fixed window profiles resist salt-water corrosion while passing ASTM E1886/E1996 missile impact and cyclic pressure testing.
The US commercial and residential fenestration landscape is undergoing a structural transition driven by net-zero building directives, updated Energy Star Version 7.0 standards, and evolving tenant preferences for high-daylight indoor environments.
Modern architectural styles favor expansive continuous glass walls. Because fixed windows eliminate the heavy frame profile dimensions required by operating hardware, developers can stack fixed picture units into vast multi-panel transom arrays without compromising structural frame deflection thresholds.
With urban high-density apartment construction rising along transit corridors, exterior noise mitigation is paramount. Fixed windows, when combined with asymmetrical double-glazing (e.g., 6mm outer pane + 4mm inner pane) or laminated interlayers, deliver sound transmission class (STC) ratings up to STC 42, dampening highway and railway sound disturbance.
Ensures window assemblies possess third-party verified U-factor, SHGC, and Visible Transmittance labels required by municipal building inspectors.
Certifies structural air, water, and structural wind load performance for residential and commercial design pressure categories.
Mandates fully tempered or laminated safety glass for fixed windows positioned adjacent to doors, walkways, or low-sill heights (<24" above finished floor).
Direct technical answers from our engineering and export logistics team.
Yes. Every fixed window unit is built to order in 1/8-inch dimensional increments from our proprietary extruded profile inventory. We regularly manufacture standard rectangular picture windows, as well as complex architectural geometric shapes including true arches, half-rounds, trapezoids, triangles, and multi-lite stack assemblies engineered from the same unified frame platform.
Fusion welding melts frame corner miters together into a single, continuous monolithic uPVC unit. Mechanically fastened frames rely on screws, corner brackets, and topical rubber sealants that gradually degrade, loosen, and leak water under wind load and thermal expansion cycles. Fusion welds guarantee lifetime frame squareness and absolute water/air impermeability at corner joints.
For Southern Sunbelt regions (IECC Zones 1-3), we recommend our LoĒ³-366 triple-silver glass package paired with argon gas fill to achieve an SHGC below 0.22, blocking maximum solar heat gain. For Northern zones (IECC Zones 5-7), we specify high solar gain Low-E coatings or triple-pane glass builds that maintain low U-factors (<0.20) while allowing passive solar heat absorption during winter months.
We provide full turn-key export logistics. Window units are individual-labeled according to your architectural window schedule, wrapped in protective film, fitted with corner edge guards, and palletized inside fully enclosed plywood crates or ocean container A-frames. We issue complete documentation including commercial invoices, packing lists, bill of lading, and ISF filings for seamless clearance at US West Coast (LA/Long Beach, Seattle) and East Coast/Gulf ports.
Our Limited Lifetime Warranty covers vinyl profile extrusion against cracking, peeling, rotting, or abnormal color fading; corner fusion welds against structural failure; and insulating glass units against internal dust accumulation or seal failure fogging under normal architectural operating conditions.
Send your project window schedule, elevation CAD files, or field opening dimensions to our factory engineering team. We deliver line-item specifications, NFRC thermal metrics, and direct export pricing within 24 business hours.
