Sunroom Export from China | 4 Season Aluminum Solarium Specs & Pricing

ROGENILAN manufactures aluminum framed sunrooms (阳光房) in Foshan, China for export to residential and light commercial projects. This page documents 4 season solarium specifications, aluminum sunroom manufacturing data, sun room pricing tiers, and procurement terms for buyers evaluating China-based sunroom suppliers. All figures reference standard export configurations shipped between 2024 and 2026.

Sunrooms 4 Season Engineering Specifications

Four season sunrooms are engineered to maintain habitable interior temperatures across a 40°C to -25°C exterior range without supplementary heating beyond 80 W/m². The assembly combines thermally broken aluminum framing, insulated glazing, and sealed joinery. Specifications below cover the standard 4 season configuration shipped from our Foshan facility.

Frame Materials and Thermal Performance

Frame extrusions use 6063-T5 aluminum alloy with a minimum yield strength of 180 MPa. Wall thickness options and corresponding thermal performance:

Thermal break strips are polyamide 66 with 25% glass fiber (PA66GF25), extruded by Technoform. Frame corner joinery uses 45° miter cutting with stainless steel corner keys and 2-component epoxy injection. After assembly, frame squareness tolerance is ±0.5 mm per meter.

Glazing Options and U-Value Data

Standard 4 season sunroom glazing configurations with measured U-values (EN 673) and solar heat gain coefficients (SHGC, EN 410):

Argon filled units ship standard; krypton fill available for triple glazing with 12 mm airspaces reduced to 9 mm. Tempered glass complies with EN 12150; laminated glass with EN ISO 12543. All units carry a 10 year seal warranty against visible condensation between panes.

Solarium Construction Standards

The solarium structure must transmit dead load, live load, snow load, and wind load to the host building or independent foundation without transferring stress into the glazing. Load calculations below reference engineering practice for attached solariums up to 60 m².

Load-Bearing and Wind Resistance Ratings

Structural design parameters for the RGS-80 4 season solarium series:

For hurricane zones (Florida, Caribbean, South China coast), the RGS-80H variant uses 2.5 mm wall thickness mullions and laminated impact glazing rated to ASTM E1996 Large Missile Impact. Miami-Dade NOA documentation is supplied per project.

Ventilation and Climate Control Integration

Solarium overheating is mitigated through three integrated systems:

• Roof vents: 600×800 mm motorized skylight vents at 8% of floor area, rain sensor auto-close within 4 seconds, 24 V DC chain actuator rated for 80,000 open/close cycles.
• Operable windows: Awning or casement vents at low level totaling 8% of glazing area, manual or electric operator. Air change rate target: 8 ACH at 5 Pa pressure differential.
• Optional HVAC stub: 100 mm sleeve through sole plate for 9,000 BTU mini-split refrigerant line; conduit pre-installed for 220 V 50 Hz or 110 V 60 Hz condenser unit.

Stack effect ventilation (cool air enters low, warm air exits high through roof vents) maintains interior temperature within 4°C of ambient when outdoor temperature is below 28°C and solar radiation is below 700 W/m².

Aluminum Sunroom Manufacturing Process

Aluminum sunroom production at the Foshan facility follows a 9 station workflow with documented inspection points. Annual capacity is 8,500 standard solarium kits per shift; lead time data is provided in the procurement section.

Alloy Grades and Surface Treatments

Extrusion stock is 6063-T5 (universal) or 6063-T6 (high strength mullion series). Surface treatment options with warranty and salt spray test data:

Coating adhesion tested per EN ISO 2409 (cross-cut, 0 rating); impact resistance per ASTM D2794 (160 in-lb direct, 80 in-lb reverse). All powder coat lines carry Qualicoat license; PVDF lines carry AAMA 2605 certification.

Assembly Tolerances and Quality Control

Each sunroom kit ships with a QC dossier containing the following inspection records:

• Extrusion mill certificate (chemical composition per EN 573-3, mechanical per EN 755-2)
• Coating thickness protocol (5 readings per face per profile, elcometer reading)
• Glass unit IGCC certification (initial U-value, dew point ≤ -40°C)
• Frame assembly squareness: ±0.5 mm/m measured at four corners
• Diagonal equality: difference ≤ 3 mm for bays up to 6 m
• Hardware cycle test (5,000 cycles per EN 13126 for operating vents)
• Water test: 600 L/m²/hr spray for 15 min, zero interior leakage (AAMA 501.1)

CNC machining centers cut profiles to ±0.2 mm length tolerance; punching and drilling are completed on the same fixture to maintain hole alignment within 0.3 mm across mating parts.

Sun Room Pricing and Procurement Data

Sun room export pricing is quoted per square meter of glazing area (frame + glass + hardware + flashing, excluding shipping and installation). Pricing below reflects 2026 FOB Foshan quotations in USD for orders at standard MOQ.

Price Matrix by Configuration

Volume discounts: 100-299 m² orders receive 4% reduction; 300-999 m² orders receive 8%; 1,000+ m² project shipments receive 12%. Custom colors, special sizes (over 6 m span), and structural glass roof options quoted per project.

MOQ, Lead Time, and Payment Terms

Standard procurement parameters:

• MOQ: 30 m² (one standard lean-to bay) for stocked configurations; 50 m² for custom colors; 100 m² for PVDF finish
• Lead time: 25 days ex-works for stocked configurations, 30-50 days for engineered solarium kits (see price matrix)
• Payment terms: 30% T/T deposit at PO, 70% balance against B/L copy; L/C at sight available for orders over USD 50,000 with 5 banking day confirmation
• Incoterms: FOB Guangzhou (Nansha) default; CIF, CFR, DAP available with carrier of record
• Packaging: EPS foam corner protectors + 5-ply corrugated carton per profile bundle; glass in wooden crates with steel banding; 20 ft GP container holds 90-110 m² standard configuration, 40 ft HQ holds 220-260 m²
• Warranty: 5 year on frame and joinery; 10 year on insulating glass seal; 10 year on powder coat, 20 year on PVDF finish

Sample policy: 1×1 m corner section shipped DHL at USD 380 including freight, refundable against first 100 m² production order. Allow 12 days for sample fabrication and shipping.

Project Case Studies and Certifications

Reference Installations with Performance Data

Three reference projects shipped between 2024 and 2026 illustrate the application range of 4 season sunroom configurations:

Stockholm project: total system cost USD 19,800 FOB + USD 4,200 sea freight + USD 3,100 installation, completed in November 2024. Energy monitoring over winter 2025 recorded 1,840 kWh auxiliary heating for the period November-March, equivalent to 44 kWh/m² — within 8% of the modeled 41 kWh/m² design target.

Miami Beach Villa: passed Miami-Dade County inspection September 2025 after Hurricane Milton (Category 3) passage with zero glazing damage; documented in NOA file 23-0807.02.

Certification Requirements by Market

Documentation supplied per project at no additional charge:

• European Union: CE marking per EN 14351-1, Declaration of Performance (DoP) with notified body number, REACH SVHC statement, EN 1279 IGCC certificate for insulating glass
• USA: NFRC label per NFRC 100/200 with certified U-value and SHGC; AAMA 101 / WDMA / CSA 101 performance grade documentation; Miami-Dade NOA for hurricane zones (FL, TX coast, Caribbean)
• Canada: CSA A440 compliance for air/water/structural; Energy Star qualified when configured with Low-E argon glazing in Climate Zones 4-7
• Australia: AS 2047 compliance for windows; AS 1288 glass selection; cyclonic region C4 rated variant available for Darwin/Cairns
• Quality system: ISO 9001:2015 certified manufacturing; ISO 14001 environmental; annual audit by SGS

Customs documentation includes CO (Certificate of Origin) Form A or China-Australia FTA, commercial invoice, packing list, and bill of lading. HS code 761010 (aluminum structures) applies to complete sunroom kits; 761090 applies to profile-only shipments.

Installation and Commissioning Notes

Site installation by an experienced 3 person crew takes 5 days for a 40 m² standard gable sunroom. Critical steps:

1. Foundation check: confirm 150 mm reinforced concrete slab with thermal break (EPS 100, 50 mm) at perimeter; tolerance ±5 mm level across bay.
2. Sill plate installation: 3 mm EPDM gasket between aluminum sill and concrete; stainless steel M12 anchor bolts at 600 mm centers, 75 mm embedment.
3. Frame erection: mullion to rafter connections via stainless steel corner keys; torque to 18 N·m with calibrated driver.
4. Glazing install: dry glaze with EPDM gaskets, no silicone on primary seals; setting blocks at quarter points; 5 mm edge clearance for thermal movement.
5. Flashing: pre-formed aluminum flashing with 150 mm upturn at wall, 75 mm downturn at eave; weep holes at 600 mm centers in sill.
6. Water test: 600 L/m²/hr spray for 15 min, verify zero interior leakage per AAMA 501.1; rectify before sign-off.
7. Hardware commissioning: cycle motorized vents 10 times, verify rain sensor triggers closure within 4 sec; calibrate thermostat to customer setpoint.

For projects without a trained installer, ROGENILAN ships an illustrated assembly manual with isometric drawings at 1:5 scale and a video walkthrough covering the same 7 steps. Field support by video call is included for first-time installers.

Product Range and Next Steps

The 4 season sunroom range complements the broader sunroom and solarium catalog, which includes lean-to, gable, Victorian, Edwardian, and bespoke conservatory styles. Glazing specifications align with the aluminum window range for thermal and structural continuity when sunrooms attach to existing fenestration. For openings larger than 6 m, aluminum folding doors integrate as the sunroom entrance or wall-to-wall aperture, sharing the same 6063-T5 extrusion alloy and Qualicoat finishes.

To request a configuration specific quotation, send project dimensions (length × projection × wall height), site location (for wind and snow load), and target winter interior temperature. Engineering drawings are returned within 5 working days; firm quotations within 8 working days. 阳光房 (sunroom) export documentation and certification packages are prepared in parallel with production to release within 3 days of container loading.