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Rainplus - Siphonic Roof Drainage System
Verified by manufacturer 3 days ago
EPD
Certificate type
Siphonic roof drainage system for large buildings, offering high flow (65 L/s per outlet), cost savings, and safe, vacuum-based operation. Certified to EN 1253-2 and ASME A112.6.9.
Application
- Flat roof drainage in commercial buildings
- Large industrial building roof drainage
- Shopping mall roof rainwater systems
- Stadiums and arena roof drainage
- Airport terminal buildings
- Warehouses and logistics centers
- Hospitals and healthcare facilities
- Educational buildings and campuses
- High-rise and multi-storey buildings
- Car parks and parking garages
- Green building water reuse systems
- LEED/ BREEAM-certified projects
- Data centers and tech hubs
- Public buildings (e.g., libraries, town halls)
- Retrofitting/ upgrading of gravity systems
Description
Rainplus is a siphonic roof drainage system designed for medium to large buildings, enabling fast and efficient rainwater collection using the building's height and vacuum dynamics. Each outlet handles up to 65 L/s, minimizing the number of roof drains required and allowing maximum architectural flexibility. The patented design ensures intrinsic safety—even in critical conditions like debris or bag blockage—and eliminates the risk of flooding or system failure.
Features and benefits:
- The system uses specially engineered collectors tested in accordance with EN 1253-2 and ASME A112.6.9, paired with HDPE pipework for reliability and durability.
- Rainplus enables targeted water channeling for collection, reuse, or discharge, supporting sustainable building design and complying with Green Building Council principles.
- Free design and insurance support service.
General information
Color | Black |
Finish | Polished |
Material | High density polyethylene (HDPE) |
Shape | Circle Square |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Warranty description | Ten year |
Uniclass | |
CAWS | R10/121 Siphonic rainwater drainage system |
SKU Code | VS0420xxx |
Specification data - Siphonic full bore rainwater drainage systems
Classification data | |
Rainwater outlets | Outlet Rainplus 110-S 320x320 L.100mm. Outlet Rainplus 110-S 320x320 L.310mm. Outlet Rainplus 110-S 480x480 L.100mm. Outlet Rainplus 110-S 480x480 L.310mm. Outlet Rainplus 110-S 480x480 perforated L.100mm. Outlet Rainplus 110-S 480x480 perforated L.310mm. Outlet Rainplus 56-S d.180 mm – Vertical connection. Outlet Rainplus 56-S d.180 mm – Horizontal connection. Outlet Rainplus 56-S 420x420 mm – Vertical connection. Outlet Rainplus 56-S 420x420 mm – Horizontal connection. Outlet Rainplus 56-S 420x420 mm – perforated – Vertical connection. Outlet Rainplus 56-S 420x420 mm - perforated – Horizontal connection. |
Internal rainwater pipework | |
Rainwater downpipes | |
Downpipe types | High-density polyethylene (HDPE) above-ground drainage pipes and fittings. |
Supports | |
Brackets and clips | Rainplus® bracketing system. |
System accessories | Not required. Outlet Rainplus 110-S – Overflow kit. Outlet Rainplus 56-S – Overflow kit. Green roof kit. Vapour barrier kit. |
Pipe diameter | 30 mm. 40 mm. 50 mm. 56 mm. 60 mm. 70 mm. 90 mm. 100 mm. 125 mm. 150 mm. 200 mm. 250 mm. 300 mm. |
Sustainability data
Contains Red List materials | No |
Country of product manufacture | Italy |
Manufacturing plant location | |
Material | High density polyethylene (HDPE) |
| Carbon dioxide equivalent | |
Carbon dioxide equivalent, as defined in BS EN 15804 Certified | |
Stage Normalised unit (kg CO₂ eq/kg) Declared unit (kg CO₂ eq/unit) Stage:A1–A3 ('Production stage') Normalised unit : 2.187 (kg CO₂ eq/kg) Declared unit : 1170 | |
Recyclability | After the demolition and deconstruction phase, can be incinerated, sent to landfill or recycled |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 0 % |
Expected Life | 50 year |
Product certifications
Product certifications
EPD
Rainplus EPD
Literature
Literature type
Rainplus Brochure
Rainplus Technical Data Sheet