Weifang, China – November 12, 2026 — Shandong Meidoor System Doors and Windows Co., Ltd. announces that three key product series, 85 Crank Casement Window, 83 Double‑Hung Window and 150 Sliding Glass Door, have successfully obtained full NFRC (National Fenestration Rating Council) product certification authorization. All certification documents and performance data are publicly available for review and download via the official NFRC Certified Product Directory: https://nfrc.org/certified‑product‑directory/.
NFRC is North America’s authoritative non‑profit organization delivering standardized energy‑performance testing, rating and labeling for windows and doors. NFRC‑certified fenestration products meet North American building‑code requirements and are widely accepted for residential and commercial construction projects across the United States and Canada.Meidoor completed independent simulation and physical performance testing under lab identification SFTL and TFTL, following the NFRC 102 test procedure of the 2023 procedural year. The certifications become effective November 05, 2026 and remain valid until July 2031 for respective product lines.
Key Certified Product & Core Performance Highlights
85 Crank Casement Window (CPD No. SMS‑M‑3)
- Tested size: 600 mm × 1500 mm; Standard tested U‑Factor: 0.465
- Glass configurations include double‑glazed, triple‑glazed, Low‑E coated and laminated safety glass filled with 90%‑argon gas.
- Whole‑unit performance range:
- U‑Factor: 0.47‑0.56 (lower value = superior thermal insulation)
- SHGC: 0.20‑0.35 (solar heat gain coefficient, adjustable for hot‑ or cold‑climate projects)
- VT (Visible Transmittance): 0.32‑0.48 (high natural daylight performance)
- Condensation Resistance: up to 38 (higher score = better anti‑condensation performance)
Advantage: Excellent air‑tightness and thermal performance, well‑suited for North‑American residential villa and apartment projects.
83 Double‑Hung Window (CPD No. SMS‑M‑4)
- Tested size:1200 mm × 1500 mm; Standard tested U‑Factor:0.473
- Multiple double‑glazed Low‑E + argon‑gas insulated glass combinations are certified.
- Whole‑unit performance range:
- U‑Factor:0.48‑0.49
- SHGC:0.27‑0.43
- VT:0.45‑0.59
- Condensation Resistance: up to 33
Advantage: Classic vertical‑sliding design compliant with North‑American residential habits; balanced insulation, daylight and anti‑condensation capability.
150 Sliding Glass Door (CPD No. SMS‑M‑5)
- Tested size:2000 mm × 2000 mm; Standard tested U‑Factor:0.425
- Certified configurations cover double‑glazed, triple‑glazed, laminated safety glass and varied Low‑E options with argon filling.
- Whole‑unit performance range:
- U‑Factor:0.44‑0.53
- SHGC:0.22‑0.55
- VT:0.45‑0.72
- Condensation Resistance: up to 29
All three series passed third‑party‑supervised simulation calculation and physical lab testing, verifying real‑world performance of thermal insulation, solar‑heat management, daylight utilization and condensation‑resistance. Customers can select matched glass packages according to local climate zones, project energy‑code requirements and design preferences.
“Obtaining NFRC certification marks a critical milestone for Meidoor’s North‑American‑market strategy,” commented Meidoor sales director. “These validated ratings give architects, developers and distributors independent, traceable performance evidence when specifying our aluminum window‑and‑door systems. Buyers may look up CPD numbers SMS‑M‑3, SMS‑M‑4 and SMS‑M‑5 in the NFRC public directory to verify full certification reports and glass‑configuration‑specific rating sheets.”
Moving forward, Meidoor will keep expanding its NFRC‑certified product portfolio and offer full‑set technical documentation, label support and customized fenestration solutions for North‑American new‑build and renovation projects. Global partners are welcome to contact Meidoor international‑sales team for catalogues, performance datasheets and project technical support.
Post time: Nov-06-2026