Insurance for your roof

Geberit Pluvia siphonic roof drainage system

Double the amount of rainwater discharge. Half the pipe diameter.

Geberit Pluvia outlets have been specially constructed to ensure rapid removal of rainwater from the roof using siphonic principles with a vacuum effect. Compared with conventional drainage, the discharge velocity and capacity is considerably increased, despite the smaller pipe dimensions. Rainwater within the pipes travels at high velocity maximising the discharge capacity and minimising blockages.

Greater installation flexibility.

The Pluvia system is simpler because no slopes are required for horizontal pipe runs reducing ceiling space. Smaller pipe diameters can lead to lower material cost and greater installation flexibility.

Service and support.

Geberit offers a comprehensive service package for customers from training to designing and onsite technical support. Fully accredited, our staff of experienced engineers are able to assist with a solution for all situations. Geberit has made a considerable investment in ProPlanner software design, which has been specifically developed to assist hydraulic consultants with the design of the Pluvia roof drainage system.


Geberit Pluvia outlet

Double the amount of rainwater discharge at half the pipe diameter
Geberit has been setting standards for roof drainage for decades with the Geberit Pluvia negative pressure system. Thanks to the special design of the Pluvia roof outlet, feed pipes and discharge stacks fill up rapidly and without air pockets when it rains. A closed water column forms in the pipes which generates negative pressure in the piping system and causes the water to be suctioned off as a result. The high flow velocity ensures a considerably more rapid drainage of the water, improves the self-cleaning forces and minimises the danger of blockages.

More freedom of design, more economic efficiency
Geberit Pluvia offers architects more freedom of design, as they require a smaller number of roof outlets, discharge stacks and underground pipes and need no longer include any slopes for the feed pipes leading to the discharge stack in their planning. Geberit also offers the Geberit ProPlanner calculation program as a service for the calculation of roof drainage systems.


Geberit HDPE pipe

Resistant to high temperatures and aggressive media
Manufactured using high density polyethylene (PE-HD), the robust piping material, Geberit PE-HD discharge pipes are appropriate for a multitude of application ranges in roof drainage systems, in industry, in commercial or laboratory facilities, for placement in the ground, in concrete or in bridge construction. Hot water does not affect the material at temperatures of up to 80 °C – or even up to 100 °C for short periods and without mechanical load. It is resistant against around 95% of all commercially available alkalis, acids and chemicals. The Geberit pipes and Geberit fittings also withstand shocks, drops, impacts or pressures of up to 150 kPa without breakage or permanent deformation.

Geberit PE – connections with long-term stability
Geberit PE pipes are available in dimensions ranging from DN 30 to DN 300 and in a wide assortment of fittings which are connected using butt welding, electrofusion welding, screw connections or flanges.