Roof inlet gravity DN75 horizontal with insulated body, with PP collar for welding with PP-based waterproofing, 148x148mm grid with adjustable height and stainless steel grate 137x137mm HL64BF/7

Roof Water Drainage – Reliability and Durability

This gravity roof inlet, with a diameter of DN75, is a solution for effectively draining water from roofs and terraces with low pedestrian traffic. The horizontal construction, combined with the insulated body, minimizes the risk of thermal bridges and ensures comfortable use for years to come. Designed for both professionals and homeowners, it offers easy installation and reliable operation.

Construction and application

The inlet is designed for installation flexibility. The possibility of using a DN75 socket connection or a compensating socket of the HDPE welded system allows adaptation to existing infrastructure. The PP collar designed for welding with PP-based waterproofing guarantees a tight and durable connection. The grid with dimensions of 148x148mm, equipped with adjustable height and a stainless steel grate of 137x137mm, effectively stops impurities, preventing clogging of the system. A flow rate of 3.70 l/s ensures efficient water drainage even during heavy rainfall.

Advantages in practice

• Versatility: A wide range of additional elements (supporting and drainage rings of the HL350/HL65 series) allows adaptation of the inlet to various roof layer arrangements – crucial for renovations or atypical structures.
• Tightness: The PP collar for welding provides a durable and waterproof connection with the waterproofing, eliminating the risk of leaks.
• Durability: Made of high-quality materials (PP and stainless steel) guarantees resistance to corrosion and mechanical damage – an investment for years to come.
• Easy installation: Simple construction and the ability to adapt to different water drainage systems make installation easier for both professionals and experienced DIY enthusiasts.
• Clogging protection: The grid with a stainless steel grate effectively stops leaves and other impurities, minimizing the need for frequent system cleaning.
• Heat loss reduction: The insulated body limits the formation of thermal bridges, which translates to lower building heating costs.