Fibre Reinforced Facade Encyclopedia: Materials
Ballistic panels are opaque wall panels engineered to stop defined projectiles, built from aramid or ultra high molecular weight polyethylene fibre laminates, glass fibre reinforced polyester, steel plate or hybrid build-ups. They are rated by test against a named standard and a named threat, and the rating attaches to the tested assembly, including its framing, fixings, joints and backing, not to the panel material considered on its own.
A ballistic rating is a statement about a specific construction shot under specific conditions. Change the joint detail, the stud spacing, the fixing centres or the backing wall, and the tested evidence no longer describes what has been built.
At a glance
| Property | Typical value | Note |
|---|---|---|
| NIJ 0108.01 levels | I, II-A, II, III-A, III, IV | Level III is 7.62 mm NATO ball; Level IV is.30-06 armour piercing |
| UL 752 levels | 1 to 10 | Level 1 is 9 mm; Level 8 is three rounds of 7.62 mm NATO; Level 10 is.50 BMG |
| EN 1522 classes | FB1 to FB7, plus FSG for shotgun | Test method is EN 1523; suffix S or NS for splintering |
| Panel thickness | Typically 6 to 30 mm for fibre laminates | Steel equivalents are thinner and far heavier |
| Panel areal weight | Typically 10 to 60 kg/m², rising with level | Use the tested system data, not a rule of thumb |
| Joint treatment | Overlap or backing strip required | A butt joint is an unrated path through the wall |
| Rating basis | The tested assembly, not the material | Fixings, framing and backing are all part of it |
| ShapeShell ballistic panel |
What a ballistic rating actually certifies
A ballistic test fires a defined projectile, at a defined mass and velocity, in a defined shot pattern, at a specimen built in a defined way, and records whether any projectile or fragment passes through or marks a witness plate behind it. The pass belongs to that specimen. It is not a property of aramid, steel or composite laminate as materials.
This matters because ballistic panels are rarely installed as bare sheets. They are screwed to studs, joined at edges, penetrated by outlets and conduits, and backed by plasterboard or masonry. Each is a potential defeat path, and a wall built from correctly rated panels can perform far below its stated level if the details were not part of the tested arrangement.
The three standard families
NIJ Standard 0108.01, Ballistic Resistant Protective Materials, was published by the United States National Institute of Justice in 1985 and remains the most commonly cited standard for opaque panels. It runs from Level I through II-A, II, III-A and III to Level IV, with Level III representing 7.62 mm NATO ball ammunition and Level IV a.30-06 armour piercing round. It is distinct from NIJ 0101, which covers body armour and is sometimes quoted in error.
UL 752, Bullet-Resisting Equipment, uses Levels 1 to 10 and is the common North American commercial reference for teller lines, counters and secure rooms. Level 1 corresponds to 9 mm handgun rounds, Level 3 to.44 Magnum, Level 8 to three rounds of 7.62 mm NATO and Level 10 to a single.50 BMG round.
EN 1522 classifies bullet resistance for windows, doors, shutters and blinds in classes FB1 to FB7 plus a shotgun class, with EN 1523 setting out the test method and a suffix of S or NS recording whether the specimen splinters on the protected side. EN 1063 is the parallel standard for glazing.
How the panels are built
- Aramid fibre laminate in a thermoset resin: high performance for weight, the usual choice where structure is weight limited
- Ultra high molecular weight polyethylene laminate: the lightest per unit of protection, with a lower service temperature limit
- Glass fibre reinforced polyester: heavier and lower performing per kilogram, but economical and easily worked
- Steel plate: thin, very heavy, rigid, and prone to spall and ricochet unless faced
- Hybrid build-ups: a hard strike face to deform or break up the projectile over a fibre catcher layer behind
Fibre laminates work by progressive delamination: the projectile is slowed as successive plies stretch and fail, spreading energy across an area. That is why laminate panels are specified with a minimum overlap at joints, and why edge fixings must not clamp the laminate in a way that prevents it deforming.
Detailing that preserves the rating
Joints are the first concern. Panels are lapped, backed with a strip of the same rated material, or set behind a cover batten, and the overlap dimension comes from the test rather than from convention. Fixing type, spacing and edge distance are equally part of the tested arrangement, and penetrations for outlets, switches and services need rated boxes or local backing, since a socket cut-out is a straight path through the panel.
The protected envelope also has to be continuous, closed at floor, ceiling and door jambs. A rated wall meeting an unrated door frame, a glazed panel of lower class, or a ceiling void that carries over the wall line, is a partial solution at best. Threat assessment should define the envelope before any panel is selected.
Specifying and verifying
State the standard, the level or class and the edition. Require the test report and the name of the accredited laboratory, not a conformity certificate alone. Require the tested build-up as a drawing and require the installed detail to match it, with any variation assessed in writing by the manufacturer. Inspect during installation, because ballistic performance is concealed once the wall is lined.
Nothing else comes bundled with a ballistic rating. A ballistic panel in an external wall still has to satisfy the NCC external wall provisions on its own terms, and a fibre reinforced polymer panel is not non-combustible; fire performance needs its own evidence naming the standard and the testing body.
Standards and references
- NIJ Standard 0108.01 Ballistic Resistant Protective Materials
- UL 752 Standard for Bullet-Resisting Equipment
- EN 1522 Windows, doors, shutters and blinds: bullet resistance, requirements and classification
- EN 1523 Windows, doors, shutters and blinds: bullet resistance, test method
- EN 1063 Glass in building: security glazing, bullet resistance
- NCC 2022 Volume One, Specification 7 external wall requirements (check the edition adopted in your jurisdiction)
Related terms
Questions specifiers ask
Does a ballistic panel have a rating on its own?
No. The rating belongs to the tested assembly, including framing, fixings, joints and backing. A panel supplied loose carries the manufacturer’s tested construction with it, and the installed detail has to match that construction.
What is the difference between NIJ Level III and UL 752 Level 3?
They describe different threats. NIJ Level III is 7.62 mm NATO rifle ammunition. UL 752 Level 3 is.44 Magnum handgun ammunition. The similar numbering is a frequent and serious source of specification error.
Which standard should be specified in Australia?
There is no Australian ballistic standard for wall panels, so projects cite NIJ 0108.01, UL 752, or EN 1522 and EN 1523 where European doors and windows are involved. Use one scheme consistently across the whole protected envelope.
How are joints between ballistic panels handled?
By overlapping the panels, backing the joint with a strip of the same rated material, or covering it with a rated batten. The overlap must follow the tested detail; a plain butt joint leaves an unrated path straight through the wall.
Is a ballistic panel also fire rated?
Not automatically. Ballistic and fire performance are unrelated tests. A polymer composite panel is combustible and needs its own reaction to fire evidence naming the standard and the testing body.
Specifying a rated wall and need the tested build-up, fixing detail and report references documented? Talk to us about the ballistic wall panel range. Contact ShapeShift Technologies
Reviewed by Richard Halvorsen, General Manager, ShapeShift Technologies. Last updated September 2026.