Extension element for gravity inlets bituminous collar HL65H

Roof drain extension element – tightness and flexibility of solutions

This extension element with a bitumen collar is a key solution when installing roof drains of the HL62 and HL64 series. Its main function is to extend the drain by the height of the thermal insulation, which allows for proper adaptation to the specifics of the roof and ensures effective water drainage. The design with a bitumen collar enables a tight connection with the waterproofing layer, minimizing the risk of leaks and providing long-term building protection.

The element is made of durable polypropylene (PP), which guarantees its resistance to weather conditions and mechanical damage. This makes it suitable for both professional applications and demanding end customers who value durability and reliability. A push-fit connection with a length of 300 mm simplifies installation, and a diameter of 125 mm ensures compatibility with most standard roof drainage systems.

Application and benefits

The HL65H extension element is an ideal solution for roofs with complex layer arrangements, where standard drains may be insufficient. It allows for:

• Adjusting the drain height: Compensating for height differences resulting from thermal insulation or other roof layers.
• Tight connection: Ensuring watertightness at the point of contact between the drain and the waterproofing thanks to the bitumen collar.
• Versatility: Compatibility with popular roof drain series HL62 and HL64.
• Durability: Made of high-quality plastic resistant to corrosion and mechanical damage.
• Easy installation: Quick and simple installation thanks to the push-fit connection.

Additionally, this element allows for flexible adaptation of the drainage system to individual project needs, which is particularly important for complex roof structures. This allows installers to offer their clients comprehensive and effective solutions, and end-users to enjoy peace of mind related to reliable protection against moisture.