When sourcing glass for windows, doors and curtain wall projects in North America, building codes and safety certifications are non-negotiable. Uncertified glass may fail site inspections, create safety hazards and void your project warranty.
Our factory supplies IGCC and SGCC certified tempered glass, insulated glass (IG units), and thermal insulating glass, fully compliant with North American building requirements. Whether you are a window contractor, custom home builder, villa developer or commercial project manager, these two key certifications prove your glass meets strict safety, thermal and quality benchmarks.
This guide breaks down what IGCC and SGCC mean, the difference between tempered, insulated and thermal glass, core performance advantages, and suitable use cases for your residential and commercial builds.

SGCC certification focuses on safety glazing products, mainly tempered glass. It verifies that glass passes impact safety tests. When broken, SGCC tempered glass shatters into small, dull granular fragments instead of sharp shards, drastically lowering injury risks.
Key points of SGCC certified glass:

IGCC certification is specially for insulated glass units (IGUs). It audits the whole insulated glass manufacturing process, sealant performance, spacer system and long-term airtightness.
An IGCC certified insulated glass unit guarantees:
Note: Our glass products carry both IGCC and SGCC certifications where applicable. We can provide certification reports and marked glass panels for your project approval.

Many buyers mix up these three glass types. Each serves different functional needs for window systems.
Tempered glass is safety glass treated by high-temperature quenching. ✅ Core strength: High impact resistance, safety upon breakage ✅ Common use: Single glazing, outer pane of insulated units, door glass ✅ Certification: SGCC mark proves safety compliance
Insulated glass consists of two or more glass panes separated by sealed air/gas cavities. ✅ Core strength: Reduce heat transfer and noise transmission ✅ Fill options: Dry air or Argon gas; Low-E coating optional ✅ Certification: IGCC validates the sealed unit quality against fogging failure

Thermal glass is a general term for glazing built to cut heat gain/loss. It often combines tempered glass + insulated unit + Low-E coating. ✅ Core strength: Improve U-value, reduce HVAC cost, prevent indoor condensation ✅ Our solution: Combine SGCC tempered panes + IGCC insulated structure + Low-E coating for premium thermal performance

For most residential and commercial glazing, local building codes require safety glazing (SGCC) for hazardous locations. Insulated glass for many building projects needs IGCC certification to pass inspection. Always check your local building jurisdiction requirements.
Yes. Our double or triple pane insulated glass uses SGCC tempered glass for panes, and the whole IGU unit is IGCC certified. One glass unit carries both certifications.
Uncertified IGUs often suffer from seal failure. Moisture enters the cavity, causing permanent fog between glass panes, which cannot be cleaned and requires full window replacement.

Absolutely. We can provide official certification documents, test reports and glass marking for your building permit and site inspection.
If you are sourcing reliable IGCC & SGCC certified tempered, insulated and thermal glass for aluminum window systems, our factory offers custom glass solutions for North American residential and commercial projects. Send your project size, performance requirements and quantity to get a detailed quotation.
Company store:https://zcsung.en.alibaba.com/
Hot News2026-05-26
2026-05-13
2026-05-11
2025-07-09
2025-02-01
2025-07-11
Copyright © Anhui Zcsung Door & Window System Technology Co., Ltd. All Rights Reserved - Privacy Policy