The GR-304 is Vexta's circular ballast guardrail around a rooftop davit or mast base. A 1500 mm internal-diameter free-standing ring with a self-closing entry gate, it creates a safe working envelope around facade access equipment without roof penetration.
Technical Data
Model: GR-304
Product Code: GR-304
Guardrail Class: EN 13374 Type B
Internal Diameter: 1500 mm
External Diameter: 1700 mm
Post Height: 1100 mm
Number of Posts: 8
Ballast: 8 x 20 kg = 160 kg total
Gate Opening: 600 mm self-closing
Top Rail: curved 40 x 20 mm RHS
Mid Rail: curved 40 x 20 mm RHS
Horizontal Load: 0.5 kN/m (Type B)
Net Weight (empty): 45 kg
Total Weight incl. ballast: 205 kg
Standard: EN 13374:2013
Key Features
1500 mm internal-diameter circular guardrail ring
Eight ballast posts, eight 20 kg concrete blocks
600 mm self-closing entry gate on spring hinges
Top rail at 1100 mm, mid rail at 550 mm
Non-penetrating EPDM-padded base frame
Ships flat-packed, assembles with hand tools
EN 13374 Type B free-standing
Hot-dip galvanised + anthracite powder-coat finish
Applications
Rooftop davit mast base protection
Facade-abseil and window-washing outrigger surrounds
Fall-arrest winch and anchor post working envelopes
Communications antenna and small telecom mast surrounds
Rooftop HVAC fan and condenser service platforms
Solar array central inverter surrounds
Product Advantages
Circular geometry protects a round equipment footprint
Zero roof penetration, membrane-friendly
Self-closing gate keeps the envelope closed
Flat-packed for cheap delivery and tight rooftops
Repositionable as rooftop equipment layout changes
Matches anthracite Vexta guardrail family finish
Material & Specifications
Posts: S235JR, 40 x 40 x 3 mm RHS, galvanised
Curved rails: S235JR, 40 x 20 x 2 mm RHS, cold-formed
Base frame: S235JR, 3 mm folded steel ring
Counterweight blocks: C30/35 pre-cast, anthracite pigment
Gate: spring-return stainless hinges, 600 mm opening
EPDM pads: 5 mm non-slip under base frame
Finish: galvanised to EN ISO 1461 + RAL 7016 powder coat
Model | GR-304 | GR-301 | GR-302 |
Product Code | GR-304 | GR-301 | GR-302 |
Guardrail Class | EN 13374 Type B | EN 13374 Type A | EN 13374 Type B |
Post Height | 1100 mm | — | 1100 mm |
Horizontal Load | 0.5 kN/m (Type B) | 1.0 kN/m | 0.5 kN/m (Type B) |
Total Weight incl. ballast | 205 kg | — | 23.8 kg |
Standard | EN 13374:2013 | EN 13374:2013 | EN 13374:2013 |
Post Section | — | 40 x 40 mm RHS, 3 mm wall | 40 x 40 mm RHS, 3 mm wall |
Rail Section | — | 40 x 20 mm RHS | 40 x 20 mm RHS |
Post Spacing | — | 2.0 m maximum | 2.0 m maximum |