Technical Resources
Standards guides, profile section & DWG references, and procurement tools to help you make informed decisions when sourcing windows and doors from China.
International Standards Guide
Navigate the complex landscape of international window and door standards. We break down requirements by market to help you ensure compliance.
Windows and Doors — EN Standards
Comprehensive guide to CE marking requirements for external windows and doors. Covers performance characteristics including wind load, watertightness, air permeability, thermal insulation, acoustic performance, and fire resistance.
North American Fenestration Standard
Guide to AAMA/WDMA/CSA 101/I.S.2/A440 (NAFS) — the unified standard for windows, doors, and skylights in North America. Covers performance grades (PG), water resistance, air leakage, and structural testing.
Aluminum Window & Door Compliance
Complete guide to AS 2047 for aluminum windows and AS/NZS 2208 for safety glazing. Covers mandatory certification and performance requirements.
ISO Testing Standards
Overview of key ISO standards relevant to window and door manufacturing: ISO 9001 (quality management), ISO 14001 (environmental), and performance testing standards.
Deep guides in the blog
Full-length guides on standards, verification and window engineering — written from factory visits and inspections, and updated as new markets come up.
- 21 October 2026How Much Deposit on Custom Windows? Start From the Point of No Return
- 17 October 2026AS 2047, Explained: The Five Tests Behind an Australian Window or Door Rating
- 17 October 2026Two Ways Foshan Quotes a Window — and Only One Can Be Compared
- 17 October 2026Reading an NFRC Label: U-factor, SHGC, and What California Title 24 Actually Requires
- 16 October 2026Bigger, and lighter: one insulated roof panel carried 56% less material per square metre
- 13 October 2026Window Hardware: How to Choose It When You Buy Windows from China
- 11 October 2026Thermal Break Continuity: Why an Aluminium Window Frame Leaks Heat Where Nobody Checks
- 9 October 2026CE Marking for Windows and Doors: What EN 14351-1 Actually Requires
- 8 October 2026Thermal Break Aluminium Windows: PA66 vs PVC, and How to Check
- 3 October 2026Stone Facade vs. Standard Exterior: Why Window Engineering Changes Everything
- 3 October 2026The WeChat Test: How I Spotted a 'Factory' That Wasn't One — Without Leaving My Desk
How we control production
What gets measured on the factory floor — wall thickness, drainage, corner injection, gaskets and glazing — and what has to be on paper before we sign it off.
Site stageInstallation support
The tolerances worth writing in before production, the answers we can still give while a crew is on the opening, and attribution when a defect becomes an argument.
Material & Component Selection
Practical guides to help you select the right materials, glass, hardware, and sealing systems for your specific project requirements and target market.
Thermal Performance Guide
Understanding U-values, SHGC, and thermal break technology for different climate zones.
Thermal break continuity — where the break is lost in a frameGlass Selection Guide
Single, double, triple glazing, Low-E coatings, laminated, tempered — how to choose the right glass.
Hardware Selection Guide
Comparing major hardware brands (Siegenia, Roto, Giesse, Kin Long) and selecting for your application.
Sealing & Weatherproofing
EPDM vs. silicone vs. TPE seals, proper gasket design, and water management systems.
Procurement Tools & Checklists
These checklists and templates are shared with clients on request — tell us what you need and we will send them over.
Need Specific Technical Guidance?
Our technical team can provide customized guidance for your specific project requirements and target market.
Request Technical Consultation