Structural insulated roof panels — steel skin bonded to an EPS core, spanning purlin to purlin.
Kit complete
Both are steel-faced insulated sandwich panels at 990 mm cover. The difference is how the sheet closes and how it is fixed. These views are generated from Technopol’s own CAD profile model, so the rib and seam geometry is the real rolled section.
LiteSpan roof panels are a factory-laminated composite (sandwich): Chromadek steel skins bonded to a fire-retardant EPS core, giving sheet, insulation and finished ceiling in one lay. Available as the 990 IBR (exposed valley fix) and 990 Standing Seam (concealed clip) profiles.
| Property | Value | Standard |
|---|---|---|
| Profiles | 990 IBR (exposed valley fix) & 990 Standing Seam (concealed 1.2 mm galv clip) | — |
| Cover width (both profiles) | 990 mm | — |
| Core — standard / options | FRCel fire-retardant EPS (standard); PIR or Stone Wool on request | — |
| Panel thicknesses | 50 / 75 / 100 / 125 / 150 mm | — |
| Maximum length | up to 12 000 (on request) mm | — |
| Minimum roof pitch | IBR 5° · Standing Seam 3° (≈1.5° mechanically-seamed, on request) | — |
| Installed R-value (by thickness) | 50: 1.6 | 75: 2.3 | 100: 3.0 | 125: 3.7 | 150: 4.4 m²K/W | — |
| Core thermal conductivity λ | 0.0352 W/m·K | Manufacturer-declared — NOT measured. Supplied by Technopol as the input to the ITT U-value calculation (A.10); the report records it as λ_declared, "Not verified". No lambda test is held. |
| Panel mass | ≈12.5 (125 mm panel) kg/m² | SANS 54509 ITT |
| Core compressive stress @10% | 0.110 (110 kPa) MPa | SANS 54509 ITT |
| Steel skins | Chromadek or similar — IBR 0.3–0.58, SS 0.3–0.5; 7 colours; underside white mm | — |
| Reaction-to-fire class | B-s1,d0 (Euroclass) — reaction-to-fire only, not a fire-resistance rating | SANS 53501-1 (Technopol declaration, extrapolated from Ignis IT 24-06-00029, 150 mm specimen) |
| Fixing | IBR: 3 screws/support (valley-fixed 14×125 Class-4 sealed tek)SS: 1.2 mm galv clip at each support, 2 screws/clip | — |
| Water-tightness | Class A — no water penetration at 1200 Pa | SANS 54509 ITT OTH-T-2309-04, cl. 13.13 |
| Load / span | per the LiteSpan load/span design tables (calibrated to the SANS 54509 ITT) | SANS 54509 |
Standard thicknesses 50/75/100/125/150 mm; Standing Seam single-skin profile 495/282 mm. Full range and colour swatches are in the brochure. Reaction-to-fire B-s1,d0 to SANS 53501-1, from Ignis Testing report IT 24-06-00029 (2024, 150 mm specimen) — a material classification, not a fire-resistance rating. Where a rated fire division is required, SANS 10177-2 governs. Full test scope, the bare-core result (IT 23-08-00009) and the superseded SANS 10177-11 listing are in the engineering specification. R-values are installed system values; λ, mass and compressive stress are measured on the 125 mm ITT specimen (OTH-T-2309-04). Load/span is set by the interactive design tables, not the old brochure figures. No Agrément applies to LiteSpan (2020/609 covers LiteCore only).
Values from Technopol technical documentation. Confirm the exact figures for your specification with Technopol.
990 IBR — 3 sealed tek screws per support, through the pan, into the stiffener bead.
990 Standing Seam — 1 concealed clip per support, 2 screws, fixed to the purlin and seamed over on site.
Fastener length ≥ panel thickness + support thickness + 15 mm.
Side lap (990 IBR) — crown locks over crown, stitched at 500 mm centres, sealed.
Side lap (990 Standing Seam) — seam folded closed over the concealed clip.
End lap (990 IBR) — 200 mm minimum, over a support only, sealed both sides.
| Junction | Detail |
|---|---|
| Eaves and gutter | End closure, bracket and drip. |
| Head-wall / apron | Z-section apron over the panel, sealed to the wall. |
| Gable / barge | Verge closure at the cut edge. |
| Ridge / apex | Apex closure seals every flute before the capping. |
Full check-list in the installation guide below.
Indicative only — downward dead + imposed load, short-term deflection limit span/200, 50 mm minimum bearing (purlin flange) at every support. Use the interactive tool to size an actual job.
| Load case | 50 mm | 75 mm | 100 mm | 125 mm | 150 mm |
|---|---|---|---|---|---|
| Single span 0.75 kPa | 4.16 m | 5.18 m | 6.14 m | 7.04 m | 7.9 m |
| Continuous 0.75 kPa | 2 m | 1.98 m | 1.98 m | 1.96 m | 1.96 m |
| Single span 1.0 kPa | 3.68 m | 4.6 m | 5.48 m | 6.3 m | 7.08 m |
| Continuous 1.0 kPa | 1.54 m | 1.52 m | 1.52 m | 1.52 m | 1.5 m |
Amber = governed by support crushing, not deflection, at 50 mm bearing.
The full load/span design tables tool is an internal Technopol engineering aid. For a project-specific span check, send us the drawings.
| Property | Value | Standard |
|---|---|---|
| Core thermal conductivity λ | 0.0352 W/m·K | SANS 54509 ITT |
| Panel mass (125 mm) | ≈12.5 kg/m² | SANS 54509 ITT |
| Core compressive stress @10% | 0.110 MPa | SANS 54509 ITT |
| Load / span | per LiteSpan load/span tables (calibrated to ITT) | SANS 54509 |
| Reaction-to-fire class | B-s1,d0 | SANS 53501-1 |
| Installed R-value (by thickness) | 50:1.6 | 75:2.3 | 100:3.0 | 120:3.6 | 150:4.4 m²K/W | derived from ITT λ |
Every test report and certificate behind these figures is on the test-report register.
The same product does a different job in each of these assemblies - each page states the target, the clause and the limits.
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