Ventilation end cap, Ø100 mm

The Ø100 ventilation end cap (ventilation hood) is a practical and essential component for the correct operation of a sewer vent stack that terminates above the roof line. Its primary purpose is to protect the top of the soil/vent pipe from precipitation (rain, snow, hail), leaves, insects, and accidental debris—without blocking sewer ventilation. Thanks to the built-in ventilation openings on the inner side of the cap, the stack maintains free air exchange with the atmosphere, which helps the system operate steadily and prevents odors from being forced back into indoor spaces.

Why is a vent stack needed? When water is discharged from a bathtub, toilet, washing machine, or dishwasher, pressure fluctuations occur inside the pipe. If the drainage system cannot draw in air, you may hear gurgling in traps, experience trap seal loss (water seal siphonage), and notice unpleasant smells in the bathroom. Venting the stack compensates for negative pressure, improves the passage of large wastewater volumes, and supports proper system performance—especially in private houses and multi-story buildings. The ventilation hood acts as a “smart shield”: it covers the pipe from above while still allowing it to “breathe.”

The product is made of a polymer material with properties similar to polypropylene sewer pipes: it is corrosion-resistant, unaffected by moisture and temperature swings, and maintains its shape and appearance over long-term use. The “cylinder + mushroom cap” design forms a reliable weather hood, while the gap between the body and the cap ensures consistent airflow even during heavy precipitation. The allowable operating temperature is up to 95°C, making it suitable for systems where hot discharges may occur.

Installation is straightforward: a socket connection with a sealing ring provides a tight fit on Ø100 pipe without adhesive or special tools. Simply ensure the seating area is clean, check the gasket integrity, and push the end cap fully into place. This mounting method reduces the risk of misalignment and provides secure fixation at the stack outlet.

Advantages of the Ø100 ventilation hood:

protects the vent stack from precipitation and contamination;

maintains full sewer ventilation through dedicated airflow openings;

resistant to corrosion and humid environments;

operating temperature up to 95°C;

neat appearance on the roof;

quick installation on a socket joint with a sealing ring.

The Ø100 ventilation end cap is an optimal choice for those who want a quiet, stable, odor-free drainage system and a well-protected roof termination all year round.