ENGONE Waterproof Roof Steel Sheet (Overlay Re-Roofing 250 / 330)

Boltless overlay steel roof sheet that fits over existing 250 and 330 sandwich-panel roofs to stop leaks. Installed without removing the old roof or its cap bolts.

Key features

Overlays existing roof without removal or sub-framing
No exposed bolts; interlocking joint plus waterproof bolt for two-stage sealing
2-, 3- and 4-rib widths match 250 and 330 panel roofs
2-rib types can be roll-formed on site
Ridge and closure waterproofing details included

Specifications

Profiles	250 (2/4-rib), 330 (2/3-rib), bent variable
Profile height	47.1 mm
Fits existing roofs	Sandwich panel roofs, 250 (4-rib) and 330 (3-rib)
Installation	Overlay; cap bolts left in place; no sub-frame
Fixing	Boltless (no exposed fasteners) + waterproof bolt
Base metal options	PPGI / PPGL; Zn-Al-Mg high-corrosion steel
Insulation	None; PE foam available
Design wind / water	Watertight to 580 Pa (30 m/s); 204 mm/h spray
Colours	Standard colour range
Source	ENGONE product data sheet

WPR 250-2R W500 0.5T		Pitch: 250 \| Ribs: 2 \| t: 0.5 mm
WPR 250-4R W1000 0.5T		Pitch: 250 \| Ribs: 4 \| t: 0.5 mm
WPR 330-2R W666 0.5T		Pitch: 330 \| Ribs: 2 \| t: 0.5 mm
WPR 330-3R W1000 0.5T		Pitch: 330 \| Ribs: 3 \| t: 0.5 mm
WPR BENT VAR 0.5T		Type: bent \| Width: variable \| t: 0.5

Roof Steel SheetsENGONE

5 product codes available in this family

Sourced direct from KoreaExport-ready supplyCompetitive pricing

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ENGONE Waterproof Roof Steel Sheet (Overlay Re-Roofing 250 / 330)

Brand ENGONE·Roof Steel Sheets

Available part numbers (5)

WPR 250-2R W500 0.5T, WPR 250-4R W1000 0.5T, WPR 330-2R W666 0.5T, WPR 330-3R W1000 0.5T, WPR BENT VAR 0.5T

How to order

Send the ENGONE part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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Colours & finishes

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Product codes & specifications

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RFQ List (0)

	Product code	Spec
	WPR 250-2R W500 0.5T	Pitch: 250 \| Ribs: 2 \| t: 0.5 mm
	WPR 250-4R W1000 0.5T	Pitch: 250 \| Ribs: 4 \| t: 0.5 mm
	WPR 330-2R W666 0.5T	Pitch: 330 \| Ribs: 2 \| t: 0.5 mm
	WPR 330-3R W1000 0.5T	Pitch: 330 \| Ribs: 3 \| t: 0.5 mm
	WPR BENT VAR 0.5T	Type: bent \| Width: variable \| t: 0.5

Need a different model, or a part not listed here? Send us your parts list →

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ENGONE Waterproof Roof Steel Sheet (Overlay Re-Roofing 250 / 330)