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Laminated insulated curtain wall glass – laminated low-emissivity IGU combining PVB or SGP interlayer with double/triple silver Low-E coating for safety, acoustic, blast-resistant, and hurricane-rated curtain wall facades. Configurations: 6+1.52PVB+16Ar+6, 8+1.52SGP+16Ar+8, 10+1.52SGP+20Ar+10. U-value ~1.4 W/m²K, SHGC 0.18–0.35, Rw up to 40 dB. Jumbo size up to 1330×11000mm. ASTM E1996, EN 356, GSA blast, Miami-Dade approved. Request FOB quote
Laminated Insulated Curtain Wall Glass | Laminated Low‑E IGU for Safety, Acoustic & Blast‑Resistant Facades
Laminated Low‑E Insulating Glass Unit – The Engineered Solution for Safety, Acoustic, Blast & Hurricane‑Resistant Curtain Walls
Laminated insulated curtain wall glass is a high‑performance insulating glass unit (IGU) in which one or both glass panes are laminated with a polyvinyl butyral (PVB) or SentryGlas® (SGP) interlayer, combined with a low‑emissivity coating and sealed cavity. This product merges the impact safety, acoustic damping, and post‑breakage retention of laminated glass with the thermal insulation and solar control of a Low‑E IGU.
Unlike standard tempered IGUs, laminated insulated curtain wall glass provides:
💡 Why laminate an IGU? Standard tempered IGUs shatter completely upon impact. Laminated insulated glass retains its structural integrity even when broken – essential for overhead glazing, ground‑floor storefronts, hurricane zones, blast‑rated buildings, and any application where human safety or asset protection is paramount.
| Item | Standard Configuration | Heavy‑Duty Configuration |
|---|---|---|
| Model | 6+1.52PVB+16Ar+6 | 8+1.52SGP+16Ar+8 |
| Overall Thickness | ~29.5 mm | ~33.5 mm |
| Outer Lite | 6mm Tempered + 1.52mm PVB | 8mm Tempered + 1.52mm SGP |
| Inner Lite | 6mm Tempered | 8mm Tempered |
| Coating | Double Silver Low‑E (on #2 or #3) | Double/Triple Silver Low‑E |
| Cavity | 16mm sealed | 16mm sealed |
| Gas Fill | Argon ≥90% | Argon ≥90% (Krypton optional) |
| Spacer | Warm Edge TPE / Swisspacer | Warm Edge TPE / Swisspacer |
| Seal | Dual seal: PIB + Structural Silicone | Dual seal: PIB + Structural Silicone |
| Parameter | Value |
|---|---|
| U‑Value | ~1.4 W/m²K |
| SHGC | 0.28–0.33 |
| VLT | 48–58% |
| UV Blockage | >99% (PVB) |
| Acoustic (Rw) | ~36 dB (standard PVB), ~39 dB (acoustic PVB) |
| Impact Resistance | ANSI Z97.1, CPSC 16 CFR 1201 Cat II |
| Max Size | 5300 × 10800 mm |
| Parameter | Value |
|---|---|
| U‑Value | ~1.2 W/m²K |
| SHGC | 0.18–0.25 |
| VLT | 42–52% |
| UV Blockage | >99% (SGP) |
| Acoustic (Rw) | ~38 dB (standard), ~41 dB (acoustic) |
| Blast Rating | GSA Level C (up to Level A with thicker SGP) |
| Hurricane | Miami‑Dade TAS 201/202/203 (large missile) |
| Max Size | 5310 × 10400 mm |
In a standard tempered IGU, if one pane breaks, the entire lite shatters into small cubes and may fall out of the frame – creating a dangerous opening. In a laminated IGU, the interlayer holds broken glass in place, maintaining a barrier against weather, intruders, and debris.
| Application | Requirement | Solution |
|---|---|---|
| Overhead glazing (skylights, atria) | Fall‑safe per IBC 2405 | Laminated inner lite mandatory |
| Ground‑floor retail/storefront | Forced‑entry resistance | SGP laminated outer lite |
| Hospitals, schools, public buildings | Human impact safety | Laminated inner or outer lite |
| Blast‑rated government buildings | GSA/USACE compliance | SGP laminated IGU |
| Configuration | Rw (dB) | STC |
|---|---|---|
| 6+16Ar+6 (non‑laminated) | ~33 | ~33 |
| 6+1.52PVB+16Ar+6 | ~36 | ~36 |
| 6+1.52Acoustic PVB+16Ar+6 | ~39 | ~39 |
| 8+1.52SGP+16Ar+8 | ~38 | ~38 |
| Threat Level | Interlayer | Result |
|---|---|---|
| GSA Level C (blast) | 1.52mm SGP | Pass – no breach |
| GSA Level B (blast) | 2.28mm SGP | Pass – limited damage |
| UL 972 (forced entry) | 1.52mm SGP | Pass – 5‑minute tool resistance |
| Hurricane large missile | 1.52mm SGP + tempered outer | Pass – Miami‑Dade approval |
In hurricane‑prone regions (Florida, Caribbean, Southeast Asia), building codes require glazing to withstand large‑missile impacts (4.5 kg timber at 15 m/s). Laminated insulated glass with a tempered outer lite and SGP inner layer meets these requirements without sacrificing thermal performance.
Both PVB and SGP interlayers block >99% of UV radiation (300–380 nm), protecting interior furnishings, artwork, and merchandise from fading.
| Model | Outer Lite | Interlayer | Cavity | Inner Lite | Typical Use |
|---|---|---|---|---|---|
| 6+1.52PVB+16Ar+6 | 6mm Tempered | 1.52mm PVB | 16mm Argon | 6mm Tempered | Standard safety, acoustic |
| 6+1.52Acoustic PVB+16Ar+6 | 6mm Tempered | 1.52mm Acoustic PVB | 16mm Argon | 6mm Tempered | High‑acoustic (hotels, residences) |
| 6+1.52SGP+16Ar+6 | 6mm Tempered | 1.52mm SGP | 16mm Argon | 6mm Tempered | Security, blast, hurricane |
| 8+1.52SGP+16Ar+8 | 8mm Tempered | 1.52mm SGP | 16mm Argon | 8mm Tempered | High‑rise blast, super‑tall |
| 10+1.52SGP+20Ar+10 | 10mm Tempered | 1.52mm SGP | 20mm Argon | 10mm Tempered | Mega‑span security |
| 6+1.52PVB+12Ar+6 | 6mm Tempered | 1.52mm PVB | 12mm Argon | 6mm Tempered | Budget safety All configurations available with double or triple silver Low‑E coating on surface #2 or #3. |
Laminated insulated IGU is the mandatory specification for overhead glazing and the recommended specification for ground‑floor vision glass in public buildings.
Recommended specification:
For spandrel zones, the laminated IGU is used with ceramic frit on the outer lite. The interlayer adds an extra layer of safety for spandrel panels located above pedestrian areas.
Spandrel specification:
✅ Best practice: For projects requiring both safety and thermal performance, specify laminated insulated IGU for the entire facade – vision and spandrel – to maintain consistent appearance and performance.
Our jumbo production capability extends laminated insulated IGU to sizes rarely available in the industry.
| Parameter | Standard | Jumbo |
|---|---|---|
| Max Width | ≤2400 mm | ≤3320 mm |
| Max Height | ≤6000 mm | ≤11100 mm (extreme up to 14500 mm) |
| Max Area | ~14 m² | ~37 m² |
| Glass Thickness | 6mm + interlayer | Up to 12mm + interlayer |
| Lamination Type | Autoclave PVB/SGP | Autoclave PVB/SGP (full quality) |
| Interlayer Type | Gas | Price Range (USD/m²) |
|---|---|---|
| Standard PVB | Argon | $45–62 |
| Acoustic PVB | Argon | $52–70 |
| SGP | Argon | $60–84 |
| Interlayer Type | Gas | Price Range (USD/m²) |
|---|---|---|
| SGP | Argon | $78–108 |
| SGP | Krypton | $88–124 |
| Factor | Impact |
|---|---|
| Interlayer type | SGP +25–40% vs. standard PVB |
| Coating generation | Triple silver +15–25% vs. double silver |
| Gas fill | Krypton +15–25% vs. argon |
| Glass thickness | 8mm +20–35% vs. 6mm |
| Acoustic PVB | +15–20% vs. standard PVB |
| Ceramic frit (spandrel) | +$8–15/m² |
| Quantity | FCL pricing available |
💡 Cost vs. benefit: While laminated insulated IGU costs 40–80% more than a standard tempered IGU, it eliminates the need for separate safety glazing, acoustic upgrades, or security film – often resulting in net savings for projects with multiple performance requirements.
Submit your project requirements for a competitive FOB quotation and performance analysis.
Required Information:
Q1: What is laminated insulated curtain wall glass?
It is an IGU where one or both glass panes are laminated with a PVB or SGP interlayer, combined with a Low‑E coating and sealed cavity. It provides safety, acoustic, blast, and hurricane protection along with thermal insulation.
Q2: When must I use laminated insulated glass?
When required by code for overhead glazing (IBC 2405), for hurricane‑prone regions (Florida Building Code), for blast‑rated government buildings (GSA), or when acoustic targets exceed Rw 35 dB.
Q3: What is the difference between PVB and SGP?
PVB is standard for safety and acoustic. SGP (SentryGlas®) is 5x stronger, 100x stiffer, and used for blast, forced‑entry, and hurricane applications.
Q4: Can laminated insulated IGU be made in jumbo sizes?
Yes. Our jumbo line produces laminated IGU up to 3320 × 11400 mm.
Q5: Does laminating affect thermal performance?
No. The interlayer is placed on the room‑side of the glass, outside the sealed cavity. The Low‑E coating and gas fill remain unaffected.
Q6: What acoustic performance can I expect?
Standard PVB: ~36 dB Rw. Acoustic PVB: ~39 dB Rw. SGP: ~38 dB Rw. All represent a 3–6 dB improvement over non‑laminated IGU.
Q7: Is laminated insulated IGU hurricane‑rated?
Yes. With a tempered outer lite and SGP inner lite, it meets Miami‑Dade TAS 201/202/203 large‑missile impact and cyclic pressure tests.
Q8: What certifications do you provide?
ASTM E1996, ASTM E2190, EN 1279‑5, EN 356, IGCC, CE, ISO 9001, CCC, SGS. Blast testing per GSA and BS EN 13123 available on request.
Q9: What is the lead time?
Standard sizes: 5–7 weeks. Jumbo sizes: 7–9 weeks. SGP lamination adds 1–2 weeks.
Q10: Can I combine laminated IGU with spandrel glass?
Yes. Use ceramic frit on the outer lite. The laminated inner lite provides safety for spandrel panels above pedestrian areas.
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