SISALATION RADIANT BARRIER
Sisalation FR430
Sisalation FR430 is a heavy-duty, fire-retardant, double-sided reflective foil radiant barrier for industrial and commercial roofs. Each 1.25m × 40m roll provides 50m² total coverage and approximately 44m² effective coverage after overlaps.
R-value
Product Overview
Sisalation FR430 is a heavy-duty, fire-retardant double-sided reflective foil laminate. Its reinforced construction is designed for demanding industrial and commercial roof applications where radiant heat, dust and moisture control are required.
Each 1.25m × 40m roll provides 50m² total area and approximately 44m² effective coverage after the required overlaps. Typical applications include factories, warehouses and large industrial or commercial buildings.
Key Benefits
- ✓ Double-sided reflective foil laminate
- ✓ Advanced fire-retardant properties
- ✓ 256g/m² heavy industrial construction
- ✓ 50m² total roll area
- ✓ Approximately 44m² effective coverage
- ✓ R1.38 downwards system R-value
- ✓ B-s1,d1 fire classification
- ✓ Dustproofing and vapour-barrier properties
Typical Roof Use
FR430 is used as an under-roof or side-cladding insulation membrane in demanding industrial and commercial buildings.
Technical Product Data
Sisalation FR430 Technical Specifications
These specifications are based on the February 2025 Sisalation FR430 Heavy Industrial product data sheet.
| Product range | Sisalation |
|---|---|
| Product type | Roofing Insulation |
| Material | Radiant Barrier |
| Grade | Heavy industrial |
| Appearance | Silver |
| Construction | Double-sided reinforced reflective foil laminate |
| Roll width | 1250mm |
| Roll length | 40m |
| Total roll area | 50m² |
| Effective coverage | 44m² |
| Recommended overlap | 150mm |
| Downwards system R-value | R1.38m²·K/W |
| Upwards system R-value | R0.67m²·K/W |
| SANS 428 fire rating | B/B1/2/H&V-SP&USP |
| SANS 53501-1 fire rating | B-s1,d1 |
| Mass per unit area | 256g/m² |
| Approximate roll weight | ±12.8kg |
| Longitudinal tensile strength | 15kN/m |
| Transverse tensile strength | 9kN/m |
| Burst strength | 990kPa |
| Foil-surface emissivity | ≤0.05 |
| Typical applications | Factories, warehouses and industrial or commercial buildings |
Roof and Cladding Applications
Where Is Sisalation FR430 Used?
FR430 is intended for heavy industrial and commercial under-roof and side-cladding applications, with or without sprinkler systems where the product’s classification is suitable for the project.
Factories and Warehouses
A heavy-duty fire-retardant radiant barrier for demanding factory and warehouse roof systems.
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Industrial Buildings
Suitable for specified industrial roofs where strong reflective insulation and vapour control are required.
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Commercial Buildings
Used as an under-roof or side-cladding insulation membrane in suitable large commercial buildings.
View Radiant Barriers →Installation Notes
Sisalation FR430 Installation Guidance
These are general product guidelines. Installation must follow the approved roof design, project specification and current manufacturer instructions.
Need Sisalation FR430 Rolls?
Tell us your roof area and required quantity. We can help estimate the number of rolls and provide a supply quote for Sisalation FR430.
Request a Supply QuoteProduct Documentation
Sisalation FR430 Data Sheet
View the current FR430 Heavy Industrial product specifications, thermal performance, physical properties and fire classifications.
Sisalation FR430 Data Sheet
February 2025 technical data covering roll dimensions, effective coverage, system R-values, strength and fire classifications.
Sisalation FR430 Information
Frequently Asked Questions
The specified under-tile or sheeting system without a ceiling has an R1.38 downwards system value and an R0.67 upwards system value. Performance depends on the complete installed roof assembly.
A 1.25m × 40m roll provides 50m² total area. Effective coverage is approximately 44m² after allowing for the specified 150mm overlaps.
FR430 is a heavy industrial product intended for suitable factories, warehouses and other demanding industrial or commercial buildings.
The February 2025 data sheet records a B/B1/2/H&V-SP&USP classification under the SANS 428 protocol and a newer B-s1,d1 classification under SANS 53501-1.
The product data specifies a 150mm overlap. The complete roof design and installation specification must also be followed around edges, penetrations and adjoining building elements.
FR405 is the lighter light-industrial grade. FR430 is a heavier-duty Sisalation product intended for more demanding industrial and commercial applications.
Need Sisalation FR430 for Your Roof?
Tell us your roof area and the number of rolls you need. We can help calculate effective coverage, confirm current pricing and stock, and provide a supply quote with collection or delivery options.
Need Sisalation FR430 for Your Roof?
Tell us your roof area and the number of rolls you need. We can help calculate coverage, confirm current pricing and stock, and quote for supply with collection or delivery options.