Calculate any security laminate, ply by ply.
Glass-clad polycarbonate, all-polycarbonate and multi-ply glass laminates, alone or inside an insulating unit: U-factor, SHGC, light, weight and thickness from LBNL’s engine.
From the layup to the spec sheet
1. Layup
Any glass, polycarbonate and interlayer
Glass, polycarbonate with hardcoats, PVB, SentryGlas® and polyurethane, any number of plies, built to scale with strength marks.
2. Performance
The numbers the energy model needs
U-factor, SHGC, visible light, UV, weight and thickness, calculated by GlassRef with the NFRC laminate method and LBNL’s engine.
3. Ratings
Your test reports, organized
On Pro, record ratings and approvals with the standard, level, report, lab and expiry; they print “as stated by” your company with a 60-day expiry warning.
4. Sheets
A security spec sheet layout
Issue sheets with your logo and a verification code, from a Security / impact starting layout on Pro.
What security glazing companies get
- Glass-clad polycarbonate and all-polycarbonate laminates, calculated
- Polyurethane interlayers, checked against Huntsman Krystalflex data
- Every result lists its components and whether NFRC’s laminate procedure accepts it
- Ratings, approvals and expiry alerts on Pro, always as your company states them
- Sound estimates (STC / OITC) for heavy laminates
GlassRef never shows a ballistic, blast or forced-entry rating as a result. A rating comes only from the product’s own test report.
Start in a minute
- Create a free account at app.glassref.com.
- Name your company. You get 14 days of Pro, no card.
- Open Makeups, tap New laminate, and add your plies.
A real GlassRef screen.
Questions about security glazing
Can GlassRef calculate glass-clad polycarbonate?
Yes. Build any combination of glass, polycarbonate and interlayers, alone or inside an insulating unit, and GlassRef calculates U-factor, SHGC, light, UV, weight and thickness with LBNL’s engine.
Does GlassRef rate ballistic or forced-entry performance?
No. GlassRef calculates thermal and optical performance, weight and thickness. Ballistic, blast and forced-entry ratings come only from the product’s test report; on Pro you can record them with the report and expiry.
How is polyurethane handled?
Polyurethane is calculated as clear PVB of the same thickness, which was checked against Huntsman Krystalflex data: the same U-factor and light within 0.003. The result says so.
How accurate are the laminate calculations?
Against LBNL’s clear PVB laminates, within 0.001 on light, solar transmittance and SHGC; tinted, named-interlayer and coated laminates within about 0.01.
Can I estimate the weight of a security unit?
Yes. Every makeup shows its thickness and weight, and project takeoffs add up pounds of glass by glass type.
GlassRef publishes reference data and shows where every number came from. It does not test, certify or approve products; product certification belongs to bodies such as NFRC, and the design professional of record signs off on what goes into a building. GlassRef is independent and not affiliated with LBNL or any manufacturer.