Extension with bituminous collar for yard gullies Perfekt (HL615-616), for welding with heat-fusible roofing felt. HL618H

Extension with bituminous collar Perfekt (HL615-616) is an element dedicated to raising courtyard gullies and ensuring a tight connection with the waterproofing layer. Its main task is to enable proper water drainage, as well as integration with the existing roof or terrace structure.

Fitting and application

The extension is compatible with HL615(H), HL616(H) series gullies and HL620, HL618(H) extensions and HL190 drainage ring. Thanks to the possibility of height adjustment (by cutting off a fragment – total height 155mm), it can be precisely adapted to specific installation conditions and the thickness of the insulation layers. This is particularly important during renovations or modernizations of existing installations.

Tightness and durability

A key feature of the Perfekt extension is the presence of a bituminous collar, which allows it to be welded to heat-shrinkable roofing felt. This guarantees a completely tight connection and prevents water leaks, which is crucial for protecting the building from moisture and damage. Manufactured from high-quality materials, it ensures long-term operation even in harsh weather conditions.

• Integration with waterproofing: The bituminous collar allows for a tight connection with heat-shrinkable roofing felt, eliminating the risk of leaks.
• Height adjustment: The ability to cut the extension allows for precise adjustment to the thickness of the insulation layers and the height of the gully.
• Versatility: Compatibility with various series of gullies and extensions increases the range of applications of the product.
• Durability: Made of durable materials, it provides resistance to corrosion and mechanical damage.
• Installation flexibility: The ability to adapt to different roof layers arrangements facilitates installation in complex structures.