Guangdong Dejiyoupin Doors and Windows Co., Ltd. subjects every window and door architectural system to rigorous international testing protocols. With over 100 proprietary national patents and recognized approvals across the United States, Canada, Europe, and Australia, we deliver verifiable reliability for commercial contractors, dealers, and architectural projects.
Tested and certified under the National Fenestration Rating Council (NFRC) criteria, verifying critical thermal transmittance (U-factor), Solar Heat Gain Coefficient (SHGC), and Visible Transmittance (VT) for strict U.S. residential and commercial energy codes.
Certified in compliance with Canadian Standards Association (CSA A440) guidelines, verifying air infiltration, water resistance, and structural strength to withstand extreme sub-zero conditions and demanding Canadian building envelope codes.
DERCHI thermally broken systems meet or surpass ENERGY STAR® climate zone performance thresholds, providing premium energy savings, insulating efficiency, and moisture condensation resistance across northern and southern regions.
Specially developed heavy-gauge aluminum profiles paired with laminated architectural safety glass undergo high-velocity wind testing and large missile impact assessments, engineered for coastal zones and severe storm regions.
Our proprietary invention patent provides integrated multi-point locking across all four sides of the door and window sash, offering perimeter gasket compression and resistance against forced structural entry.
Certified under ISO 9001 Quality Management Systems, European CE Conformity directives, and Australian AS2047 fenestration standards, verifying precision CNC tolerances and long-term hardware durability.
At Guangdong Dejiyoupin Doors and Windows Co., Ltd., certification represents a comprehensive commitment to verifiable precision. Every production batch is traced from 6063-T5/T6 architectural aluminum alloy extrusions to certified insulated glass assemblies.
Whether supplying multi-story commercial residential projects or single-family developments, all products can be accompanied by comprehensive test documentation, project submittal packages, and structural calculations to simplify building department permits and architectural sign-offs.
Laser-verified diagonals and CNC milled hardware preps ensure alignment before export crating.
Internal test chambers verify water tightness, structural wind resistance, and air infiltration metrics.
Every rough opening, jamb condition, and glazing configuration is confirmed by engineering drawings prior to assembly.
Contact our project engineering team at [email protected] for test laboratory results, structural calculations, and CAD shop drawings customized to your project specifications.
Send an Inquiry